The role of low-energy excited states in solar-energy capture. This project aims to determine the nature and role of the lowest-energy excited states in most natural photosynthetic reaction centres and light-harvesting complexes. The lowest-energy states of bacterial reaction centres are critical to function and are used as a paradigm in artificial organic solar-energy capture, but for most photosystems their nature remains unknown. The project aims to answer the critical question of why they do ....The role of low-energy excited states in solar-energy capture. This project aims to determine the nature and role of the lowest-energy excited states in most natural photosynthetic reaction centres and light-harvesting complexes. The lowest-energy states of bacterial reaction centres are critical to function and are used as a paradigm in artificial organic solar-energy capture, but for most photosystems their nature remains unknown. The project aims to answer the critical question of why they do not actually prevent function. It is expected that both the outcomes obtained and techniques developed will be directly relevant to solar-energy device design. The project will apply five existing, complimentary and purposely built spectrometers as well as quantum electronic and nuclear simulation techniques to identify and characterise three key systems.Read moreRead less
Unlocking the diverse property profile of ultra-lightweight magnesium alloys. This project aims to develop the theory behind why micro alloying contributes to the formation of surface film properties. The exemplar is a prototype Magnesium-Lithium (Mg-Li) base alloy, with high specific-strength and corrosion resistance. This project will lead to the development of a new processable ultra-lightweight, corrosion resistant Mg-Li alloy family that is stronger than the prototype alloy, and with, at le ....Unlocking the diverse property profile of ultra-lightweight magnesium alloys. This project aims to develop the theory behind why micro alloying contributes to the formation of surface film properties. The exemplar is a prototype Magnesium-Lithium (Mg-Li) base alloy, with high specific-strength and corrosion resistance. This project will lead to the development of a new processable ultra-lightweight, corrosion resistant Mg-Li alloy family that is stronger than the prototype alloy, and with, at least, comparable ductility and corrosion resistance. Not only will the outcomes of the work be a fundamental advance to the fields of metallurgy and corrosion science, they will lead to the identification of an optimised compositional window for creating our second generation Mg-Li alloy family capable of being manufactured into ultra-lightweight, corrosion resistant metal products.Read moreRead less
Structural safety guidelines for accidental hydrogen explosion hazards . This project aims to develop structural safety guidelines to mitigate hydrogen explosion hazards which can be identified as a major safety concern due to the higher demand worldwide for sustainable energy sources with no carbon emission. The world’s growing demand for hydrogen and Australia’s National Hydrogen Strategy to develop the industry will make Australia a core player in hydrogen production creating a massive econom ....Structural safety guidelines for accidental hydrogen explosion hazards . This project aims to develop structural safety guidelines to mitigate hydrogen explosion hazards which can be identified as a major safety concern due to the higher demand worldwide for sustainable energy sources with no carbon emission. The world’s growing demand for hydrogen and Australia’s National Hydrogen Strategy to develop the industry will make Australia a core player in hydrogen production creating a massive economic opportunity. However, the high flammability and low ignition energy of hydrogen makes it vulnerable to accidental explosions. Hence, this project will address the lack of safety protocols in Australian Standards related to the handling of hydrogen by producing essential design recommendations.Read moreRead less
Molecules as probes of the interstellar medium. It is one of the greatest challenges in Nature is to remotely identify what is in space. Interstellar molecules are identified by their spectra, but many features in these spectra are unknown, implying that there are many more molecules in space than we know about. With a stronger understanding of space chemistry, we could predict what should be there and verify it in the lab. Conversely, identification of these features will provide the tools to u ....Molecules as probes of the interstellar medium. It is one of the greatest challenges in Nature is to remotely identify what is in space. Interstellar molecules are identified by their spectra, but many features in these spectra are unknown, implying that there are many more molecules in space than we know about. With a stronger understanding of space chemistry, we could predict what should be there and verify it in the lab. Conversely, identification of these features will provide the tools to understand interstellar chemistry. In this project we combine skills in spectroscopy and astronomy to make these molecules in the laboratory, measure their spectra and thereby identify unknown molecules in space.Read moreRead less
Synchrotron radiation techniques applied to melting and resolidification at a nanometric scale. By delivering underpinning knowledge of melting characteristics of nanoparticles, the proposal seeks results that can lead to breakthrough applications in advanced materials engineering. Measurements of the liquid nanoparticle structure performed at the Australian Synchrotron are unprecedented and are thus likely to include the development of new methodology. National and international exposure of Aus ....Synchrotron radiation techniques applied to melting and resolidification at a nanometric scale. By delivering underpinning knowledge of melting characteristics of nanoparticles, the proposal seeks results that can lead to breakthrough applications in advanced materials engineering. Measurements of the liquid nanoparticle structure performed at the Australian Synchrotron are unprecedented and are thus likely to include the development of new methodology. National and international exposure of Australian science and the Australian Synchrotron will have both scientific and economic ramifications. Involvement of students will contribute to developing the local synchrotron knowledge base and is beneficial to the Australian synchrotron-research community as a whole.Read moreRead less
Nanorheology: Hydrodynamic Slip in Newtonian Fluids. Understanding fluid flow across a surface is essential to a great number of technologies. For over one hundred years it has been assumed that the layer of fluid adjacent to the solid moves with the solid, this is known as the no-slip boundary condition. Recently direct force balance measurements of aqueous Newtonian solutions have indicated the presence of boundary slip. Using a newly developed nanorheology technique we will systematically inv ....Nanorheology: Hydrodynamic Slip in Newtonian Fluids. Understanding fluid flow across a surface is essential to a great number of technologies. For over one hundred years it has been assumed that the layer of fluid adjacent to the solid moves with the solid, this is known as the no-slip boundary condition. Recently direct force balance measurements of aqueous Newtonian solutions have indicated the presence of boundary slip. Using a newly developed nanorheology technique we will systematically investigate the conditions that control boundary slip. This information will be used to quantify, model and control boundary slip, progressing the fields of microfluidics, particle deposition, and colloid stability.Read moreRead less
A Midas touch for electrophiles in new reaction development. This project aims to address the lack of knowledge about how high-value organic molecules are formed in gold-catalysed reactions by advancing a novel mode of catalysis. This project expects to generate new knowledge about these gold-catalysed reactions using an innovative, interdisciplinary approach incorporating computational and synthetic techniques. Expected outcomes of this project include the optimisation and development of import ....A Midas touch for electrophiles in new reaction development. This project aims to address the lack of knowledge about how high-value organic molecules are formed in gold-catalysed reactions by advancing a novel mode of catalysis. This project expects to generate new knowledge about these gold-catalysed reactions using an innovative, interdisciplinary approach incorporating computational and synthetic techniques. Expected outcomes of this project include the optimisation and development of important organic reactions and enhancing collaboration nationally and internationally between computational and synthetic chemists. This should provide significant benefits in the form of improved chemical reactions for chemists to prepare new pharmaceuticals, agrochemicals and materials.Read moreRead less
Real-time imaging of crystal strengthening mechanisms in metals. The strength limit of a metal is marked by rapid motion of crystalline defects. The associated speeds can locally approach that of sound. To probe the associated mechanisms clearly requires both spatial and temporal resolution. We propose to create a new bulk x-ray technique with an unprecedented combination of temporal and spatial resolution. We plan to exploit the technique to mediate a step change in modelling strength based on ....Real-time imaging of crystal strengthening mechanisms in metals. The strength limit of a metal is marked by rapid motion of crystalline defects. The associated speeds can locally approach that of sound. To probe the associated mechanisms clearly requires both spatial and temporal resolution. We propose to create a new bulk x-ray technique with an unprecedented combination of temporal and spatial resolution. We plan to exploit the technique to mediate a step change in modelling strength based on twinning. The formation of crystalline twins is known to dictate the strength of the light metal magnesium. A fuller understanding of the effect of twinning on strength in this metal will provide much needed confidence to implement it more widely in energy saving applications.Read moreRead less
Unravelling the dominant drivers of ion specificity. This project aims to understand what governs the sensitivity of many technological and biological processes to the precise nature of the salt present in solution. The term ‘ion-specific’ encompasses all the circumstances in which the influence of a salt in solution depends on the precise chemical nature of the salt, not just the electrical charge on the ions that form the salt. As such, ion-specific effects abound and have important consequenc ....Unravelling the dominant drivers of ion specificity. This project aims to understand what governs the sensitivity of many technological and biological processes to the precise nature of the salt present in solution. The term ‘ion-specific’ encompasses all the circumstances in which the influence of a salt in solution depends on the precise chemical nature of the salt, not just the electrical charge on the ions that form the salt. As such, ion-specific effects abound and have important consequences in most situations involving solutions, including cellular functions and battery technology. This project will enable us to understand and control the influence of specific ions, building on our recently described fundamental ion-specific series with colloid science experiments and quantum simulations. This project should overcome current challenges in predicting ion-specific effects leading to progress in a wide variety of applications of colloid and interface science, from sensor interfaces to self-assembly.Read moreRead less
Nanostructured solid acid catalysts for sustainable chemical manufacturing. This project aims to develop next-generation solid acid catalysts for energy- and atom-efficient transformations of waste biomass and carbon dioxide to sustainable chemicals and fuels. Catalysis is a transformative technology, key to both life and lifestyle, contributing to 90% of chemical manufacturing processes and >20% of all industrial products, and will be a key enabler for the emerging Australian bioeconomy. The ex ....Nanostructured solid acid catalysts for sustainable chemical manufacturing. This project aims to develop next-generation solid acid catalysts for energy- and atom-efficient transformations of waste biomass and carbon dioxide to sustainable chemicals and fuels. Catalysis is a transformative technology, key to both life and lifestyle, contributing to 90% of chemical manufacturing processes and >20% of all industrial products, and will be a key enabler for the emerging Australian bioeconomy. The expected development of new high performance catalysts for the production of renewable transportation fuels and sustainable chemical feedstocks will underpin commercially viable low carbon technologies using waste resources, and should provide significant benefits to Australian science, industry, and the environment.
Read moreRead less