ORCID Profile
0000-0002-0941-4205
Current Organisation
Nanyang Technological University
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Publisher: Elsevier BV
Date: 09-2004
Publisher: Elsevier BV
Date: 04-2005
Publisher: American Chemical Society (ACS)
Date: 12-2001
DOI: 10.1021/LA010917R
Publisher: Wiley
Date: 20-08-2003
DOI: 10.1002/POLB.10522
Publisher: Elsevier BV
Date: 10-2003
Publisher: Wiley
Date: 10-2004
DOI: 10.1002/APP.21151
Publisher: American Chemical Society (ACS)
Date: 20-10-2005
DOI: 10.1021/MA051833I
Publisher: Elsevier BV
Date: 02-2003
Publisher: American Chemical Society (ACS)
Date: 16-06-2004
DOI: 10.1021/LA049907R
Abstract: The effects of a salt mixture consisting of a salt-out salt (NaCl) and a salt-in salt (NaI) on the sol-gel transition of methylcellulose (MC) in aqueous solution have been studied by means of micro differential scanning calorimetry and rheometry. The salt mixture was found to have a combined effect from the salt-out and salt-in salts in the mixture, and the salt effect was dependent on the water hydration abilities of the component ions and ion concentration. At a fixed total salt concentration, the sol-gel transition temperature nicely followed a rule of mixing: Tp = m1Tp1 + m2Tp2 where Tp, Tp1, and Tp2 are the gelation peak temperatures for the MC solutions with a salt mixture, NaCl, and NaI, respectively, and mi is the molar fraction of the salt component i in the salt mixture. The linear rule of mixing proved that the effects of NaCl and NaI on the sol-gel transition of MC are completely independent. In addition, the presence of a single salt or a salt mixture in a MC solution does not change the essential mechanism of MC gelation. Therefore, the sol-gel transition of MC can be simply controlled by a salt mixture consisting of a salt-out salt and a salt-in salt. The rheological results supported the micro thermal results excellently. But the gel strength of MC containing salts was influenced by both salt type and salt concentration.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4EW00073K
Abstract: New thermally responsive ionic liquid draw solutes generate high flux against seawater with substantially reduced electrical energy consumption.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4NJ01810A
Abstract: New π-conjugated alternating donor–acceptor polymers, based on functionalized imide acceptor structures with the 2,5-dithienylthieno[3,2- b ]thiophene (DTT) donor structure, were successfully synthesized and their properties were studied.
Publisher: Wiley
Date: 03-2004
Publisher: American Chemical Society (ACS)
Date: 27-07-2012
DOI: 10.1021/NL302017W
Abstract: Control of competing parameters such as thermoelectric (TE) power and electrical and thermal conductivities is essential for the high performance of thermoelectric materials. Bulk-nanocomposite materials have shown a promising improvement in the TE performance due to poor thermal conductivity and charge carrier filtering by interfaces and grain boundaries. Consequently, it has become pressingly important to understand the formation mechanisms, stability of interfaces and grain boundaries along with subsequent effects on the physical properties. We report here the effects of the thermodynamic environment during spark plasma sintering (SPS) on the TE performance of bulk-nanocomposites of chemically synthesized Bi(2)Te(2.7)Se(0.3) nanoplatelets. Four pellets of nanoplatelets powder synthesized in the same batch have been made by SPS at different temperatures of 230, 250, 280, and 350 °C. The X-ray diffraction, transmission electron microscopy, thermoelectric, and thermal transport measurements illustrate that the pellet sintered at 250 °C shows a minimum grain growth and an optimal number of interfaces for efficient TE figure of merit, ZT∼0.55. For the high temperature (350 °C) pelletized nanoplatelet composites, the concurrent rise in electrical and thermal conductivities with a deleterious decrease in thermoelectric power have been observed, which results because of the grain growth and rearrangements of the interfaces and grain boundaries. Cross section electron microscopy investigations indeed show significant grain growth. Our study highlights an optimized temperature range for the pelletization of the nanoplatelet composites for TE applications. The results provide a subtle understanding of the grain growth mechanism and the filtering of low energy electrons and phonons with thermoelectric interfaces.
Publisher: Elsevier BV
Date: 08-2004
Publisher: Wiley
Date: 31-07-2001
DOI: 10.1002/APP.1874
Publisher: Elsevier BV
Date: 05-2001
Publisher: AIP Publishing
Date: 02-08-2005
DOI: 10.1063/1.2009831
Abstract: A comparative study of in situ postgrowth annealing of organic layers before metal cathode was conducted on tris-(8-hydroxyqunoline) aluminum (Alq3)-based organic light-emitting devices (OLEDs). The devices were fabricated in the same run with a standard device without annealing for comparison, with an identical structure of indium tin oxide (ITO)/copper phthalocyanine (CuPc) (10nm)∕N,N′-di(naphthalene-l-yl)-N,N′-diphenyl-benzidine (NPB) (90nm)∕Alq3(90nm)∕Mg:Ag(200nm)∕Ag(20nm). The annealing temperature used was 60, 80, and 100°C, respectively. It was found that, in situ postgrowth annealing improves the device performance, and annealing near the glass transition temperature of NPB (99.7°C), improves device performance drastically. Power efficiency and current efficiency increase significantly with the annealing temperature, except the current efficiency for device annealed at 100°C is slightly lower than that of the standard device. The voltage and current density for 100cd∕m2 luminance are 5.6V and 4.4mA∕cm2, respectively, for the device annealed at 100°C, in comparison to 9.2V and 4.3mA∕cm2, respectively, for the standard device, the power efficiency is much improved by more than 40%. The in situ postgrowth annealed organic layers were characterized by photoluminescence and Raman spectroscopy.
Publisher: American Chemical Society (ACS)
Date: 02-04-2005
DOI: 10.1021/MA050097F
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA14528J
Publisher: Wiley
Date: 27-01-2003
DOI: 10.1002/PI.1098
Publisher: Elsevier BV
Date: 12-2003
Publisher: Elsevier BV
Date: 06-2005
Publisher: Wiley
Date: 14-10-2003
DOI: 10.1002/APP.13078
Publisher: Elsevier BV
Date: 2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EN00194E
Abstract: An international workshop identified how pore structures and unique properties that emerge at nano- to sub-nano- size domains can improve the energy efficiency and selectivity of electroseparation or electrocatalytic processes for treating water.
Publisher: American Chemical Society (ACS)
Date: 19-11-2013
DOI: 10.1021/AM404768V
Abstract: Surface graft polymerization on multiwalled carbon nanotubes (MWCNTs) with several grafting mechanisms is nowadays a demanding field of nanocomposites in order to enhance the load carrying capacity, thus improving the overall performance of the composites. Here, we demonstrate the covalent grafting of a sulfonic acid terminated monomer, 2-acrylamido-2-methylpropane sulfonic acid onto sidewalls of MWCNTs via a comparative study between oxygen plasma induced grafting (OPIG), nitrogen plasma induced grafting (NPIG), and nitrogen + oxygen plasma induced grafting (NOPIG) with the aim to identify the most effective process for the preparation of polymer encapsulated carbon nanotubes. From the detail surface analysis, it has been noticed that NOPIG offered much better surface grafting than that of the OPIG and NPIG. The transmission electron microscopy (TEM) images showed that MWCNTs modified by NOPIG possess much thicker and uniform polymer coatings throughout. From thermogravimetric analysis (TGA), the grafting degree was found to be ~80 wt % for the NOPIG s le.
Publisher: Elsevier BV
Date: 09-2006
Publisher: Wiley
Date: 19-03-2002
DOI: 10.1002/PI.889
Publisher: Wiley
Date: 27-02-2002
DOI: 10.1002/PI.843
Publisher: Wiley
Date: 27-02-2003
DOI: 10.1002/APP.11846
Publisher: Elsevier BV
Date: 03-2015
Publisher: Elsevier BV
Date: 02-2015
Publisher: Wiley
Date: 09-05-2013
DOI: 10.1002/PI.4511
Publisher: Wiley
Date: 22-04-2003
DOI: 10.1002/PI.1123
Publisher: Wiley
Date: 22-05-2003
DOI: 10.1002/APP.12330
Publisher: Trans Tech Publications Ltd.
Date: 15-06-2006
Publisher: Elsevier BV
Date: 08-1999
Publisher: Wiley
Date: 06-11-2002
DOI: 10.1002/APP.11361
Publisher: Elsevier BV
Date: 06-2009
Publisher: Wiley
Date: 10-12-2003
DOI: 10.1002/POLB.10599
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 07-2000
Publisher: Wiley
Date: 13-10-190728635
DOI: 10.1002/APP.10627
Publisher: Wiley
Date: 06-02-2002
DOI: 10.1002/APP.10308
Publisher: Elsevier BV
Date: 12-2005
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2RA20951A
Publisher: Wiley
Date: 2003
DOI: 10.1002/PI.962
Publisher: Wiley
Date: 06-05-2016
Publisher: Wiley
Date: 23-12-2002
DOI: 10.1002/APP.11513
Publisher: Wiley
Date: 11-09-2002
DOI: 10.1002/APP.11157
Publisher: American Chemical Society (ACS)
Date: 14-08-2002
DOI: 10.1021/LA020029B
Publisher: Society of Rheology
Date: 05-2003
DOI: 10.1122/1.1566035
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Xiao Hu.