Promoting transition metal complex catalysis with plasmonic antennae. This project aims to apply visible light photocatalysis to a wide range of chemical reactions by utilizing the intriguing effects of intense light absorption by plasmonic metal nanoparticles, such as generating energetic electrons, changing reactant adsorption and the chemical binding of reactant with the catalyst. These effects will promote catalysis at surface-bound metal complex reaction sites under mild reaction conditions ....Promoting transition metal complex catalysis with plasmonic antennae. This project aims to apply visible light photocatalysis to a wide range of chemical reactions by utilizing the intriguing effects of intense light absorption by plasmonic metal nanoparticles, such as generating energetic electrons, changing reactant adsorption and the chemical binding of reactant with the catalyst. These effects will promote catalysis at surface-bound metal complex reaction sites under mild reaction conditions. This is a part of our long-term effort to transform chemical production by heating into green photocatalytic process. This project expects to generate knowledge crucial for developing theories for catalysis, the design of efficient catalysts, green chemical synthesis methods, and enhance international collaboration.Read moreRead less
Selective photocatalytic lignin biomass conversion. If the prospective ‘hydrogen economy’ is to use hydrogen as a fuel and energy carrier to replace fossil sources, vast amounts of renewable cheap hydrogen must be available. A likely candidate is catalytic water splitting by sunlight. The hydrogen can be made affordable, by coupling hydrogen production to a higher value-added stream. The aim of this project is to produce a stable, hybrid heterogenous catalyst system able to oxidise organic subst ....Selective photocatalytic lignin biomass conversion. If the prospective ‘hydrogen economy’ is to use hydrogen as a fuel and energy carrier to replace fossil sources, vast amounts of renewable cheap hydrogen must be available. A likely candidate is catalytic water splitting by sunlight. The hydrogen can be made affordable, by coupling hydrogen production to a higher value-added stream. The aim of this project is to produce a stable, hybrid heterogenous catalyst system able to oxidise organic substrates derived from lignin biomass as an adjunct to visible light hydrogen generation from water. The significance will be to provide fuels and organic chemicals for industry from biomass, water and sunlight and catalytically remediate waste water with sunlight.Read moreRead less
Solar-driven thermochemical dissociation of carbon dioxide and water to produce carbon-neutral fuels. The biggest challenge to humanity of the century is to develop enabling clean energy resources to encounter rapidly diminished fossil fuel and accelerated global warming conditions. This project will offer a solution by developing a unique solar-driven thermochemical system capable of cleaving carbon dioxide and water to produce artificial syngas.
Discovery Early Career Researcher Award - Grant ID: De140101330
Funder
Australian Research Council
Summary
Electron Density - Reactivity Correlation through Experimental Quantum Crystallography. X-ray wavefunction refinement provides a novel approach to the determination of reliable chemical properties through an amalgamation of x-ray diffraction data and ab initio calculations. Detailed knowledge of these properties will greatly improve our understanding of reactivity and selectivity control in chemical processes, two of the most important and challenging questions in chemistry. This project involve ....Electron Density - Reactivity Correlation through Experimental Quantum Crystallography. X-ray wavefunction refinement provides a novel approach to the determination of reliable chemical properties through an amalgamation of x-ray diffraction data and ab initio calculations. Detailed knowledge of these properties will greatly improve our understanding of reactivity and selectivity control in chemical processes, two of the most important and challenging questions in chemistry. This project involves the synthesis of hypercoordinated molecules that serve as sterically frozen intermediates along the pathways of nucleophilic substitution reactions. Comparison of their properties with those of textbook compounds will provide a direct link to the classical Lewis notion of bonding and show that the concept of hypervalency is obsolete.Read moreRead less
Coinage metal nanoclusters: synthesis, structure and reactivity. Metal catalysts play important roles in the multi-billion dollar production of many industrial and fine chemicals used in wide-ranging applications including pharmaceuticals, insecticides and polymers. Despite the importance of metal catalysed reactions, the molecular details of such processes remain poorly understood. Breakthrough studies highlight that reactions previously thought to be catalysed by discrete metal catalysts are i ....Coinage metal nanoclusters: synthesis, structure and reactivity. Metal catalysts play important roles in the multi-billion dollar production of many industrial and fine chemicals used in wide-ranging applications including pharmaceuticals, insecticides and polymers. Despite the importance of metal catalysed reactions, the molecular details of such processes remain poorly understood. Breakthrough studies highlight that reactions previously thought to be catalysed by discrete metal catalysts are in fact catalysed by metal nanoclusters. This project involves the application of advanced mass spectrometric and computational methods to explore the formation and reactivity of copper, silver and gold nanoclusters. Identification of key reactive intermediates will inform the design of next generation catalysts.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190101450
Funder
Australian Research Council
Funding Amount
$392,556.00
Summary
Tuning non-plasmonic metals to high performance photocatalysts. This project aims to develop non-plasmonic, transition metal-based, photocatalysts with enhanced light absorption, to achieve irradiation controllable product selectivity in organic synthesis. The project demonstrates how hollow-particle morphology alloy nano-structures can enhance photocatalytic activity. Alloy structures such as iridium-nickel (IrNi), iridium-cobalt (IrCo) and iridium-tin (IrSn) nanoparticles with a hollow morphol ....Tuning non-plasmonic metals to high performance photocatalysts. This project aims to develop non-plasmonic, transition metal-based, photocatalysts with enhanced light absorption, to achieve irradiation controllable product selectivity in organic synthesis. The project demonstrates how hollow-particle morphology alloy nano-structures can enhance photocatalytic activity. Alloy structures such as iridium-nickel (IrNi), iridium-cobalt (IrCo) and iridium-tin (IrSn) nanoparticles with a hollow morphology, exhibit dramatically increased photocatalytic activity over their individual components, Ir, Ni, Co and Sn respectively. The project is expected to expand the application of photocatalysis and generate knowledge that can be used to design efficient photocatalysts from non-plasmonic metals. Intended benefits are the generation of new knowledge and capabilities in synthetic catalysis and applications in fields such as the conversion of solar energy to chemical energy.Read moreRead less
Seeing chemical reactions: Electron pairing and energetics along pseudo-reaction pathways from high-resolution X-ray diffraction data. This project aims to see the electron pairs in chemical reactions by extending high-resolution X-ray diffraction experiments on molecules frozen along their reaction pathway. This knowledge will help chemists to control a desired chemical synthesis leading to new prospects in drug design or material science.
Scale-up of catalytic furandicarboxylic acid production at room temperature. This project will use new knowledge acquired from our laboratory-scale discoveries to develop a new process feasible for industrial-scale production of 2,5-furandicarboxylic acid (FDCA). The method makes FDCA, a platform chemical for future chemical industry, from a completely renewable source derived from plant sugars, 5-hydroxymethyl-furfural. This is an essential process for production of biodegradable plastic from s ....Scale-up of catalytic furandicarboxylic acid production at room temperature. This project will use new knowledge acquired from our laboratory-scale discoveries to develop a new process feasible for industrial-scale production of 2,5-furandicarboxylic acid (FDCA). The method makes FDCA, a platform chemical for future chemical industry, from a completely renewable source derived from plant sugars, 5-hydroxymethyl-furfural. This is an essential process for production of biodegradable plastic from sugar that has not been commercialised. This technology will realise sizeable industrial-scale production of FDCA at low costs and without heating. The production development of this valuable commodity from renewable plant sugars will provide high-quality postgraduate training in future green chemical production methods.Read moreRead less
Nano-engineered multi-functional materials for catalysis and sensing by an integrated chemical and electrochemical approach. This project aims to deliver a facile and cheap method to produce a class of nanostructured materials to be used in applications which will have environmental and social benefits such as: green synthesis of fine chemicals, catalyst development for clean energy fuel cells and sensor technology for the detection of potent biotoxins.
Discovery Early Career Researcher Award - Grant ID: DE130100424
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Strike while the iron is hot - structure and reactivity of iron-oxo complexes that mimic carbon-hydrogen bond activating enzymes. To meet the demands of a burgeoning global population, new and more sustainable methods for producing chemicals that are ubiquitous to modern life are required. This project will provide valuable information on how to improve the way chemicals are made by using nature as a blueprint for designing the next generation of catalysts that contain iron.