ORCID Profile
0000-0002-0450-2812
Current Organisation
University of Queensland
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Chemical Engineering | Membrane and Separation Technologies | Colloid And Surface Chemistry | Membrane And Separation Technologies | Functional Materials | Nanotechnology | Carbon Capture Engineering (excl. Sequestration) | Resources Engineering Not Elsewhere Classified | Nanotechnology | Environmental Engineering | Environmental Technologies | Chemical Engineering Not Elsewhere Classified | Nanomaterials | Interdisciplinary Engineering Not Elsewhere Classified | Ceramics | Chemical Sciences not elsewhere classified | Process Control and Simulation | Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) | Materials Engineering not elsewhere classified | Hydrometallurgy | Mineral Processing/Beneficiation | Compound Semiconductors | Resources Engineering and Extractive Metallurgy | Materials Engineering | Metals and Alloy Materials | Petroleum and Reservoir Engineering | Interdisciplinary Engineering | Ceramics | Environmental Engineering Not Elsewhere Classified | Catalysis and Mechanisms of Reactions | Engineering And Technology Not Elsewhere Classified | Biomaterials | Chemical Thermodynamics and Energetics | Physical Chemistry (Incl. Structural) | Civil Engineering | Transport Properties and Non-Equilibrium Processes | Structural Chemistry and Spectroscopy | Nanoscale Characterisation | Construction Engineering | Chemical Engineering not elsewhere classified | Chemical Engineering Design | Aerospace Electrical Systems | Materials Engineering Not Elsewhere Classified |
Energy transformation not elsewhere classified | Energy transformation | Climate change | Transformation of Coal into Gaseous Fuels | Transformation of Black Coal into Electricity | Plastic products (incl. Construction materials) | Renewable energy | Expanding Knowledge in Engineering | Management of Greenhouse Gas Emissions from Energy Activities (excl. Electricity Generation) | Management of Greenhouse Gas Emissions from Electricity Generation | First Stage Treatment of Ores and Minerals not elsewhere classified | Oil and Gas Extraction | Energy Storage (excl. Hydrogen) | Solid Oxide Fuel Cells | Coal Mining and Extraction | Structural Metal Products | Manufactured products not elsewhere classified | Mining and Extraction of Aluminium Ores | Computer hardware and electronic equipment not elsewhere classified | Ceramics | Inorganic industrial chemicals | Prevention and treatment of pollution | Ceramics | Conservation and efficiency | Coal—other purposes | Gas distribution | Transformation of Gas into Liquid Fuels | Other | Coal—electricity | Oil and gas | Transformation of Coal into Liquid Fuels | Expanding Knowledge in Technology | Oil and Gas Refining | Hydrogen Production from Fossil Fuels | Industrial Energy Conservation and Efficiency | Energy not elsewhere classified | Water services and utilities | Industrial Chemicals and Related Products not elsewhere classified | Precious (Noble) Metal Ore Exploration | Beneficiation or Dressing of Iron Ores | Diamond Exploration | Waste management and recycling | Electricity, gas and water services and utilities
Publisher: Elsevier BV
Date: 06-2012
Publisher: American Chemical Society (ACS)
Date: 04-04-2018
Publisher: MDPI AG
Date: 17-02-2011
DOI: 10.3390/MA4020448
Publisher: Elsevier BV
Date: 08-2012
Publisher: Elsevier BV
Date: 05-2014
Publisher: Elsevier BV
Date: 02-2011
Publisher: MDPI AG
Date: 12-07-2013
Publisher: Elsevier BV
Date: 2015
Publisher: Elsevier BV
Date: 03-2006
DOI: 10.1205/PSEP.04126
Publisher: Elsevier BV
Date: 02-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11427A
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 2014
Publisher: Elsevier BV
Date: 09-2014
Publisher: Elsevier BV
Date: 06-2013
Publisher: Springer Science and Business Media LLC
Date: 16-09-2009
Publisher: Springer Science and Business Media LLC
Date: 1999
Publisher: Elsevier BV
Date: 10-2011
Publisher: Elsevier BV
Date: 02-2013
Publisher: Elsevier BV
Date: 2009
Publisher: Elsevier BV
Date: 05-2009
Publisher: Elsevier BV
Date: 09-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/B924327E
Publisher: Wiley
Date: 24-08-2009
DOI: 10.1002/AIC.11985
Publisher: Wiley
Date: 02-2006
DOI: 10.1002/AIC.10777
Publisher: Elsevier BV
Date: 07-2014
Publisher: Springer Science and Business Media LLC
Date: 28-09-2015
DOI: 10.1038/SREP14560
Abstract: A ternary phase-separation investigation of the ethyl silicate 40 (ES40) sol-gel process was conducted using ethanol and water as the solvent and hydrolysing agent, respectively. This oligomeric silica precursor underwent various degrees of phase separation behaviour in solution during the sol-gel reactions as a function of temperature and H 2 O/Si ratios. The solution composition within the immiscible region of the ES40 phase-separated system shows that the hydrolysis and condensation reactions decreased with decreasing reaction temperature. A mesoporous structure was obtained at low temperature due to weak drying forces from slow solvent evaporation on one hand and formation of unreacted ES40 cages in the other, which reduced network shrinkage and produced larger pores. This was attributed to the concentration of the reactive sites around the phase-separated interface, which enhanced the condensation and crosslinking. Contrary to dense silica structures obtained from sol-gel reactions in the miscible region, higher microporosity was produced via a phase-separated sol-gel system by using high H 2 O/Si ratios. This tailoring process facilitated further condensation reactions and crosslinking of silica chains, which coupled with stiffening of the network, made it more resistant to compression and densification.
Publisher: Wiley
Date: 21-08-2009
DOI: 10.1002/APJ.382
Publisher: American Chemical Society (ACS)
Date: 28-08-2008
DOI: 10.1021/IE8004226
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 2006
Publisher: Elsevier BV
Date: 06-2015
Publisher: Elsevier BV
Date: 02-2015
Publisher: Wiley
Date: 20-09-2007
Publisher: Elsevier BV
Date: 10-2013
Publisher: Wiley
Date: 12-04-2007
Publisher: Elsevier BV
Date: 11-2015
Publisher: Springer Science and Business Media LLC
Date: 03-02-2015
DOI: 10.1038/SREP08210
Publisher: Informa UK Limited
Date: 02-2007
Publisher: Elsevier BV
Date: 09-2016
Publisher: Wiley
Date: 24-05-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CP02309B
Abstract: Cobalt oxide clusters of long range order greatly improved the stability of microporous silica under harsh hydrothermal conditions.
Publisher: Elsevier BV
Date: 07-2003
Publisher: Elsevier BV
Date: 02-2009
Publisher: American Scientific Publishers
Date: 07-2014
Publisher: Elsevier BV
Date: 05-2014
Publisher: Springer Science and Business Media LLC
Date: 15-08-2013
DOI: 10.1038/SREP02449
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA11085H
Abstract: Pd crystallite sizes within silica were controlled by calcination in either oxidation or reduction conditions. Control was imparted by the temperature of decomposition of the PdCl 2 precursor, and thus the degree of condensation of the silica matrix.
Publisher: IEEE
Date: 2006
Publisher: Elsevier BV
Date: 03-2017
Publisher: Elsevier BV
Date: 06-2015
Publisher: MDPI AG
Date: 17-11-2021
DOI: 10.3390/JCM10225357
Abstract: Children who are deaf or hard of hearing (DHH) are likely to exhibit difficulties in development of psychosocial skills, pragmatic language skills, and use of hearing for social communication in real-world environments. Some evidence suggests that pragmatic language use affects peer-relationships and school engagement in these children. However, no studies have investigated the influence of functional auditory performance and use of language and speech in real-world environments on children’s behavior and emotion, and on their health-related quality of life. This study explored the relationship in DHH children at 9 years of age. Data from 144 participants of the Longitudinal Outcomes of Children with Hearing Impairment study were analyzed. Parent reports were obtained on quality of life, behavior and emotion, pragmatic language skills, and auditory functional performance of children in real life. Children’s spoken language abilities and speech intelligibility were assessed by research speech pathologists. On average, performance of children in all domains was within the range of typically developing peers. There were significant associations among functional auditory performance, use of speech and language skills, psychosocial skills, and quality of life. Multiple linear regression analyses revealed that better auditory functional performance and pragmatic language skills, rather than structural language abilities, were associated with better psychosocial abilities and quality of life. The novel findings highlight the importance of targeted intervention for improving functional hearing skills and social communication abilities in DHH children, and emphasize the importance of collaborative approaches among medical, audiology, allied health, and educational professionals to identify those at risk so that timely referral and intervention can be implemented for improving psychosocial health and well-being in DHH children.
Publisher: Elsevier BV
Date: 05-2016
Publisher: Elsevier BV
Date: 10-2007
DOI: 10.1016/J.JCIS.2007.05.067
Abstract: Hydrogen as a high-quality and clean energy carrier has attracted renewed and ever-increasing attention around the world in recent years, mainly due to developments in fuel cells and environmental pressures including climate change issues. In thermochemical processes for hydrogen production from fossil fuels, separation and purification is a critical technology. Where water-gas shift reaction is involved for converting the carbon monoxide to hydrogen, membrane reactors show great promises for shifting the equilibrium. Membranes are also important to the subsequent purification of hydrogen. For hydrogen production and purification, there are generally two classes of membranes both being inorganic: dense phase metal and metal alloys, and porous ceramic membranes. Porous ceramic membranes are normally prepared by sol-gel or hydrothermal methods, and have high stability and durability in high temperature, harsh impurity and hydrothermal environments. In particular, microporous membranes show promises in water gas shift reaction at higher temperatures. In this article, we review the recent advances in both dense phase metal and porous ceramic membranes, and compare their separation properties and performance in membrane reactor systems. The preparation, characterization and permeation of the various membranes will be presented and discussed. We also aim to examine the critical issues in these membranes with respect to the technical and economical advantages and disadvantages. Discussions will also be made on the relevance and importance of membrane technology to the new generation of zero-emission power technologies.
Publisher: Wiley
Date: 23-07-2009
DOI: 10.1002/AIC.11857
Publisher: Elsevier BV
Date: 10-2012
Publisher: Elsevier BV
Date: 15-01-2008
Publisher: American Chemical Society (ACS)
Date: 07-04-2007
DOI: 10.1021/CM0628698
Publisher: American Chemical Society (ACS)
Date: 30-07-2019
Abstract: This work investigates the one-pot facile synthesis of novel 2D/3D assemblies containing graphene silica (templated) aerogel sorbents for CO
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 10-2008
Publisher: Springer Science and Business Media LLC
Date: 22-01-2015
DOI: 10.1038/SREP07970
Publisher: Elsevier BV
Date: 09-2015
Publisher: Elsevier BV
Date: 06-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2004
DOI: 10.1039/B406286H
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1EE01180D
Publisher: Elsevier BV
Date: 05-2004
Publisher: Elsevier BV
Date: 10-2013
Publisher: IEEE
Date: 2006
Publisher: Springer Science and Business Media LLC
Date: 10-04-2013
DOI: 10.1038/SREP01648
Publisher: Elsevier
Date: 2013
Publisher: Elsevier BV
Date: 05-2011
Publisher: Elsevier BV
Date: 13-12-2010
Publisher: American Chemical Society (ACS)
Date: 05-03-2010
DOI: 10.1021/ES903436V
Abstract: Sorbents for high temperature CO2 capture are under intensive development owing to their potential applications in advanced zero emission power, sorption-enhanced steam methane reforming for hydrogen production and energy storage systems in chemical heat pumps. One of the challenges in the development is the prevention of sintering of the sorbent (normally a calcium oxide derivative) which causes the CO2 capture capacity of the material to deteriorate rapidly after a few cycles of utilization. Here we show that a simple wet mixing method can produce sintering-resistant sorbents from calcium and magnesium salts of d-gluconic acid. It was found that calcium oxide was well distributed in the sorbents with metal oxide nanoparticles on the surface acting as physical barriers, and the CO2 capture capacity of the sorbents was largely maintained over multiple cycles of utilization. This method was also applied to other organometallic salts of calcium and magnesium/aluminum and the produced sorbents showed similarly high reversibility.
Publisher: Elsevier BV
Date: 08-2010
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 09-2011
Publisher: Informa UK Limited
Date: 25-03-2009
Publisher: Elsevier
Date: 2013
Publisher: American Scientific Publishers
Date: 03-2004
DOI: 10.1166/JNN.2004.037
Abstract: This article reports a study of the effects of synthesis parameters on the preparation and formation of mesoporous titania nanopowders by employing a two-step sol-gel method. These materials displayed crystalline domains characteristic of anatase. The first step of the process involved the hydrolysis of titanium isopropoxide in a basic aqueous solution mediated by neutral surfactant. The solid product obtained from step 1 was then treated in an acidified ethanol solution containing the same titanium precursor to thicken the pore walls. Low pH and higher loading of the Ti precursor in step 2 produced better mesoporosity and crystallinity of titanium dioxide polymorphs. The resultant powder exhibited a high surface area (73.8 m2/g) and large pore volume (0.17 cm3/g) with uniform mesopores. These materials are envisaged to be used as precursors for mesoporous titania films as a wide band gap semiconductor in dye-sensitized nanocrystalline TiO2 solar cells.
Publisher: Elsevier BV
Date: 11-2013
DOI: 10.1016/J.FOODCHEM.2013.04.052
Abstract: Pathogen infection stimulates the fatty acid (FA) metabolism and the production of pro-inflammatory derivatives of FA. Barramundi, Lates calcarifer, was fed on a diet rich in preformed long-chain (⩾C20) polyunsaturated fatty acids (LC-PUFA) from fish oil (FO), to compare with diets containing high levels of C18 precursors for LC-PUFA - stearidonic (SDA) and γ-linolenic acid (GLA) - from Echium plantagineum (EO), or rapeseed oil (RO) rich in α-linolenic acid (ALA), but a poor source of LC-PUFA and their precursors. After 6weeks, when growth rates were similar amongst the dietary treatments, a sub-lethal dose of Streptococcus iniae was administered to half of the fish, while the other half were maintained unchallenged and were pair-fed with the infected fish. Under a disease challenge situation, the tissue FA depots depleted at 3days post-infection (DPI) and were then restored to their previous concentrations at 7DPI. During the infection period, EO fish had a higher content of n3 and n6 PUFA in their tissues, higher n3:n6 PUFA ratio and reduced levels of the eicosanoids, TXB2 and 6-keto-PGF1α, in their plasma compared with RO fish. Fish fed on FO and EO had a longer lasting and enduring response in their FA and eicosanoid concentrations, following a week of bacterial infection, compared with those fed on RO. EO, containing SDA and GLA and with a comparatively higher n3:n6 PUFA ratio, proved more effective than RO in compensating for immunity stress.
Publisher: American Scientific Publishers
Date: 03-2004
DOI: 10.1166/JNN.2004.036
Abstract: High-quality nanometer thick ultramicroporous membranes were prepared from silica sol-gel processes and tested for the permeation of binary gas mixtures of He, H2, CO2, and CH4 across different temperature and partial pressure regimens. Pore size distribution by molecular probing showed that the majority of pore sizes had dimensions below 2.9 A. In 50:50 binary mixtures, the fluxes of gases increased as a function of temperature, indicating an activated transport mechanism. The ultramicroporous membranes showed high selectivities at 150 degrees C for He/CO2 (30), He/CH4 (93), H2/CO2 (10), and H2/CH4 (9) with lower selectivities for CO2/CH4 (5). High activation energies (Ea) were observed for the permeance of 50:50 binary mixtures containing He and H2 of 22.1-27.5 and 17.6-23.1 kJ.mol-1, respectively. The Ea for the permeance of the total mixture approached the Ea for the permeance of the molecule with the smaller kinetic diameter (He or H2).
Publisher: Elsevier BV
Date: 07-2008
Publisher: Elsevier BV
Date: 09-2007
DOI: 10.1016/J.WATRES.2007.05.028
Abstract: The supply security of fresh drinking water is decreasing and raising a critical situation for communities worldwide. Inorganic membranes such as alumina and molecular sieve silica have in the past been shown to be highly effective at separating gases and could offer promise as liquid separators due to their high flux and stability. In this work, we develop a range of inorganic membranes with pore size ranging from 0.3 to 500nm and relate this to separation and transport performance. Best separation results were achieved for the silica membrane pressurised to only 7bar, exhibiting a flux of around 1.8kgm(-2)h(-1) and NaCl rejection of 98% with 3.5wt% (seawater-like) feed. Potable water from seawater-like feed was achieved from the membrane in a single stage after regeneration. Conditions such as pressure and temperature were also modified showing performance characteristics and diffusion mechanisms. The non-osmotic set-up for inorganic membranes is therefore a viable technology for desalination.
Publisher: Elsevier BV
Date: 06-2014
Publisher: Springer Science and Business Media LLC
Date: 04-04-2014
DOI: 10.1038/SREP04594
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA05934D
Abstract: The size or alkyl chain length of cationic surfactants can be used to tailor both the pore morphology and the functionality or oxidation state of cobalt in silica materials.
Publisher: Elsevier
Date: 2011
Publisher: Elsevier BV
Date: 12-2008
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA02985F
Abstract: High oxygen capacity in Co y Cu 1−y O x with short redox cycles of 125 °C, assisted by the catalytic activity of Cu oxides.
Publisher: Elsevier BV
Date: 09-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2EE03247C
Publisher: Elsevier BV
Date: 03-2005
Publisher: Elsevier BV
Date: 05-2008
Publisher: Elsevier BV
Date: 2010
Publisher: Elsevier BV
Date: 10-2014
Publisher: Springer Science and Business Media LLC
Date: 21-04-2011
Publisher: Elsevier BV
Date: 05-2005
Publisher: Elsevier BV
Date: 07-2013
Publisher: Elsevier BV
Date: 07-2009
Publisher: Elsevier BV
Date: 06-2015
Publisher: Elsevier BV
Date: 12-2015
Publisher: MDPI AG
Date: 11-2022
DOI: 10.3390/PR10112239
Abstract: The climate change impact associated with greenhouse gas emissions is a major global concern. This work investigates perovskite compounds for oxygen separation from air to supply oxygen to oxyfuel energy systems to abate these significant environmental impacts. The perovskites studied were Me0.5Sr0.5Co0.8Cu0.2O3−δ (MeSCC) where the A-site substitution was carried out by four different cations (Me = Ca, Mg, Sr, or Ba). SEM analysis showed the formation of small particle ( µm) aggregates with varying morphological features. XRD analysis confirmed that all compounds were perovskites with a hexagonal phase. Under reduction and oxidation reactions (redox), Ba and Ca substitutions resulted in the highest and lowest oxygen release, respectively. In terms of real application for oxygen separation from air, Ba substitution as BaSCC proved to be preferable due to short temperature cycles for the uptake and release of oxygen of 134 °C, contrary to Ca substitution with long and undesirable temperature cycles of 237 °C. As a result, a small air separation unit of 0.66 m3, containing 1000 kg of BaSCC, can produce 18.5 ton y−1 of pure oxygen by using a conservative heating rate of 1 °C min−1. By increasing the heating rate by a further 1 °C min−1, the oxygen production almost doubled by 16.7 ton y−1. These results strongly suggest the major advantages of short thermal cycles as novel designs for air separation. BaSCC was stable under 22 thermal cycles, and coupled with oxygen production, demonstrates the potential of this technology for oxyfuel energy systems to reduce the emission of greenhouse gases.
Publisher: American Chemical Society (ACS)
Date: 26-07-2018
Publisher: MDPI AG
Date: 03-09-2012
DOI: 10.3390/W4030629
Publisher: Elsevier BV
Date: 04-2007
Publisher: Wiley
Date: 13-12-2007
Publisher: American Chemical Society (ACS)
Date: 10-2006
DOI: 10.1021/IE060757K
Publisher: Elsevier BV
Date: 02-2012
DOI: 10.1016/J.JCIS.2011.10.041
Abstract: This work shows for the first time the potential of cobalt oxide silica (CoO(x)Si) membranes for desalination of brackish (1 wt.% NaCl), seawater (3.5 wt.% NaCl) and brine (7.5-15 wt.% NaCl) concentrations at feed temperatures between 25 and 75 °C. CoO(x)Si xerogels were synthesised via a sol-gel method including TEOS, cobalt nitrate hydrate and peroxide. Initial hydrothermal exposure (<2 days) of xerogels prepared with various pH (3-6) resulted in densification of the xerogel via condensation reactions within the silica matrix, with the xerogel synthesised at pH 5 the most resistant. Subsequent exposure was not found to significantly alter the pore structure of the xerogels, suggesting they were hydrostable and that the pore sizes remained at molecular sieving dimensions. Membranes were then synthesised using identical sol-gel conditions to the xerogel s les and testing showed that elevated feed temperatures resulted in increased water fluxes, whilst increasing the saline feed concentration resulted in decreased water fluxes. The maximum flux observed was 1.8 kg m(-2) h(-1) at 75 °C for a 1 wt.% NaCl feed concentration. The salt rejection was consistently in excess of 99%, independent of either the testing temperature or salt feed concentration.
Publisher: Elsevier BV
Date: 04-2009
Publisher: Elsevier
Date: 2014
Publisher: Elsevier BV
Date: 15-01-2007
Publisher: Elsevier BV
Date: 04-2007
Publisher: American Chemical Society (ACS)
Date: 13-03-2008
DOI: 10.1021/IE0716060
Publisher: FapUNIFESP (SciELO)
Date: 22-10-2013
Publisher: Elsevier BV
Date: 2000
Publisher: MDPI AG
Date: 02-05-2011
DOI: 10.3390/MA4050845
Publisher: Elsevier BV
Date: 15-09-2009
Publisher: American Scientific Publishers
Date: 09-2001
DOI: 10.1166/JNN.2001.037
Abstract: Silica xerogels were prepared by a sol-gel process catalyzed by acid with tetraethylorthosilicate, and using an organic covalent ligand template (methyltriethoxysilane) or a noncovalent template C6 surfactant (triethylhexylammonium bromide). The influence of hydrotreatment on the structure of templated xerogels is examined in terms of surface area, micropore volume, average pore size, and pore size distribution, and compared against a blank xerogel (nontemplated). The role of surface functional groups was evaluated using 29Si nuclear magnetic resonance. The structural integrity of the xerogel was maintained to a large extent in s les that had a high contribution of Q4 species (siloxane groups). Xerogel matrix densification occurred when there was a large concentration of Q3 and Q2 species (silanol groups), which also were responsible for increased hydrophilicity. The templated xerogels resulted in up to a 25% concentration of methyl functional groups (T3 and T2 species), leading to hydrophobic xerogels. The best results in terms of structural integrity and hydrophobicity were obtained with templated xerogels prepared with the C6 surfactant. The results in this study suggest that surfactant-enhanced condensation reactions lead to structures with a high contribution of Q4 groups, which are not susceptible to water attack, but are strong enough to oppose matrix densification during rehydration.
Publisher: Elsevier BV
Date: 11-2009
Publisher: Elsevier BV
Date: 10-2004
Publisher: Elsevier BV
Date: 03-2002
Publisher: Elsevier BV
Date: 31-05-2007
Publisher: Wiley
Date: 06-06-2006
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC02292D
Abstract: GO–Fe 3 O 4 confers superior catalytic efficiency, recyclability and longevity, via the oxidation of CC bonds, thus transferring electrons to Fe 3 O 4 .
Publisher: Elsevier BV
Date: 02-2009
Publisher: Wiley
Date: 14-09-2004
DOI: 10.1002/AIC.10200
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA00498A
Abstract: High cobalt oxide concentrations were able to shield the microporous silica network from excessive structural rearrangement during harsh hydrothermal testing.
Publisher: Elsevier BV
Date: 05-03-2009
Publisher: Elsevier BV
Date: 11-2006
DOI: 10.1205/PSEP05021
Publisher: MDPI AG
Date: 17-02-2014
Publisher: Elsevier BV
Date: 10-2008
Publisher: Wiley
Date: 14-09-2006
DOI: 10.1002/AIC.10966
Publisher: Springer Science and Business Media LLC
Date: 08-2004
Publisher: Elsevier BV
Date: 02-2014
Publisher: Elsevier BV
Date: 09-2011
Publisher: Informa UK Limited
Date: 2006
Publisher: Elsevier BV
Date: 04-2014
Publisher: Inderscience Publishers
Date: 2007
Publisher: Elsevier
Date: 2007
Publisher: American Chemical Society (ACS)
Date: 23-12-2009
DOI: 10.1021/ES902426N
Abstract: A screening of potential calcium precursors for the production of CaO sorbents for CO(2) capture at high temperature was conducted in this work. The precursors studied include microsized calcium carbonate (CC-CaO), calcium hydroxide (CH-CaO), nanosized (<70 nm) calcium carbonate (CC70 nm-CaO), nanosized (<160 nm) calcium oxide (CaO160 nm-CaO), calcium acetate hydrate (CA-CaO), calcium l-lactate hydrate (CL-CaO), calcium formate (CF-CaO), calcium citrate tetrahydrate (CCi-CaO), and calcium d-gluconate monohydrate (CG-CaO). The capture capability of these sorbents was investigated using a thermogravimetric analyzer (TGA) for multiple capture cycles. CG-CaO exhibited the best capacity for capturing CO(2) with a 1-min conversion of 65.9% and a 30-min conversion of 83.8% at the ninth cycle. Subsequently, a further parametric study was conducted to examine the effect of reaction conditions such as reaction temperature (550-750 degrees C) and CO(2) gas concentration (1-15%) on the capture capacity of CG-CaO. The sorbent CG-CaO also showed a much lower decomposition temperature and higher predicted residual conversion after prolonged cycles, compared with CC-CaO.
Publisher: Elsevier BV
Date: 08-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA04068C
Abstract: A series of graphene oxide (GO) and zinc partially substituted magnetite GO–Fe 1−x Zn x O y (0 ≤ x ≤ 0.285) catalysts were synthesised through a precipitation-oxidation method.
Publisher: Elsevier BV
Date: 2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CC06373G
Abstract: Owing to the geometrical features of 2D graphene intercalated into 3D mesoporous silica, CO 2 sorption increased by 51% and the heat of sorption reduced by up to 27% as compared to a pure 3D mesoporous silica sorbent without graphene.
Publisher: Elsevier BV
Date: 04-2004
Publisher: Elsevier BV
Date: 02-2013
Publisher: American Chemical Society (ACS)
Date: 02-02-2009
DOI: 10.1021/JP810112C
Publisher: No publisher found
Date: 2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2009
DOI: 10.1039/B819379G
Publisher: Elsevier BV
Date: 10-2007
Publisher: Elsevier BV
Date: 04-2010
Publisher: Elsevier BV
Date: 04-2011
Publisher: Elsevier BV
Date: 09-2012
Publisher: Elsevier BV
Date: 10-2015
Publisher: Elsevier BV
Date: 09-2012
Publisher: Elsevier BV
Date: 04-2011
Publisher: Elsevier BV
Date: 09-2011
Publisher: Wiley
Date: 08-12-2008
Publisher: Elsevier BV
Date: 08-2009
Publisher: Trans Tech Publications, Ltd.
Date: 06-2009
DOI: 10.4028/WWW.SCIENTIFIC.NET/JNANOR.6.115
Abstract: This work investigates the effect of nanosized Al2O3 addition on the sinterability of YSZ electrolyte. (1−x)YSZ + Al2O3 ceramics with compositions x = 0 to 0.01 were prepared by the conventional mixed oxide route from a commercial powder suspension (particle size nm), and sintered at 1200 to 1500°C for 2 hours in air. Densification, phase evolution, and microstructure were characterized by SEM/EDS and XRD. An improvement in sintered density was observed for the s les with 0.2 to 0.5 mol% Al2O3, though depending on the sintering temperature. Only cubic zirconia was detected as crystalline phase, although XRD features suggested chemical interactions depending upon the amount of Al2O3. The grain size of YSZ was homogeneous and no second phase segregation was detected in the tested range of incorporated nano-Al2O3 and sintering temperatures.
Publisher: Elsevier BV
Date: 05-2004
Publisher: Elsevier BV
Date: 10-2018
Publisher: MDPI AG
Date: 06-05-2019
DOI: 10.3390/PR7050261
Abstract: This Special Issue on “Membrane Materials, Performance and Processes” of Processes provides a collection of interdisciplinary work representative of the current development in the fields ofmembrane science and technology [...]
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA12483A
Abstract: Hydrothermally stable ES40-derived silica matrices with less than 30% pore volume loss are closely associated with a more open silica microstructure formed from thermal consolidation of larger silica particles.
Publisher: Elsevier BV
Date: 03-2014
Publisher: MDPI AG
Date: 05-2018
DOI: 10.3390/PR6050047
Publisher: Elsevier BV
Date: 09-2010
Publisher: Springer Science and Business Media LLC
Date: 17-02-2012
Publisher: Elsevier BV
Date: 03-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2CP41226H
Abstract: The combined effect of minor yttrium doping and silver catalyst deposition on the surface kinetics (k(chem)) and bulk diffusion (D(chem)) of BSCF (Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-δ)) perovskite membranes was explored using electrical conductivity relaxation (ECR) and validated using oxygen permeation measurements. Yttrium doping of BSCF to form Ba(0.5)Sr(0.5)Co(0.8)Fe(0.175)Y(0.025)O(3-δ) (BSCFY) improved both the surface exchange kinetics and the bulk diffusion by an average of 44% and 177% respectively, supporting improved oxygen permeation measurements. The deposition of a silver catalyst on BSCFY further improved the surface kinetics by 63-450% at intermediate operating temperatures (600-750 °C), and reduced the activation energy from 163 to 90 kJ mol(-1). Interestingly, these improvements did not translate into enhanced oxygen fluxes for the silver coated thicker 0.5 and 1 mm membranes, indicating that the oxygen ion transport was limited by bulk diffusion. However, oxygen permeation measurements on catalyst-coated 0.3 mm-thick membranes yielded improvements of 20-35% in the range 600-900 °C. The silver catalyst was beneficial in overcoming surface kinetic limitations for the thinner 0.3 mm BSCFY membranes, thus suggesting that the critical thickness of BSCFY membranes lies around ∼0.4 mm and validating the ECR measurements.
Publisher: Elsevier BV
Date: 07-2006
Publisher: Elsevier BV
Date: 08-2009
Publisher: Elsevier
Date: 2011
Publisher: American Chemical Society (ACS)
Date: 05-06-2014
DOI: 10.1021/ES500382D
Abstract: In this study, we propose and experimentally verified that methane and formic acid mixed fuel can be employed to sustain solid oxide fuel cells (SOFCs) to deliver high power outputs at intermediate temperatures and simultaneously reduce the coke formation over the anode catalyst. In this SOFC system, methane itself was one part of the fuel, but it also played as the carrier gas to deliver the formic acid to reach the anode chamber. On the other hand, the products from the thermal decomposition of formic acid helped to reduce the carbon deposition from methane cracking. In order to clarify the reaction pathways for carbon formation and elimination occurring in the anode chamber during the SOFC operation, O2-TPO and SEM analysis were carried out together with the theoretical calculation. Electrochemical tests demonstrated that stable and high power output at an intermediate temperature range was well-maintained with a peak power density of 1061 mW cm(-2) at 750 °C. With the synergic functions provided by the mixed fuel, the SOFC was running for 3 days without any sign of cell performance decay. In sharp contrast, fuelled by pure methane and tested at similar conditions, the SOFC immediately failed after running for only 30 min due to significant carbon deposition. This work opens a new way for SOFC to conquer the annoying problem of carbon deposition just by properly selecting the fuel components to realize their synergic effects.
Publisher: IEEE
Date: 03-2009
Publisher: Elsevier BV
Date: 15-09-2007
Start Date: 2008
End Date: 12-2012
Amount: $770,000.00
Funder: Australian Research Council
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Amount: $487,000.00
Funder: Australian Research Council
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End Date: 01-2008
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Funder: Australian Research Council
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End Date: 12-2013
Amount: $150,000.00
Funder: Australian Research Council
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End Date: 04-2010
Amount: $180,000.00
Funder: Australian Research Council
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End Date: 02-2015
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Funder: Australian Research Council
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End Date: 06-2017
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Funder: Australian Research Council
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End Date: 04-2013
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Funder: Australian Research Council
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End Date: 12-2007
Amount: $34,900.00
Funder: Australian Research Council
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End Date: 10-2003
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Funder: Australian Research Council
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End Date: 12-2010
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Funder: Australian Research Council
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End Date: 12-2005
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Funder: Australian Research Council
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End Date: 01-2008
Amount: $165,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2003
End Date: 06-2004
Amount: $10,000.00
Funder: Australian Research Council
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Funder: Australian Research Council
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Funder: Australian Research Council
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End Date: 12-2012
Amount: $360,000.00
Funder: Australian Research Council
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End Date: 12-2023
Amount: $4,000,000.00
Funder: Australian Research Council
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