Surface Processing of Photo-Sensitive Semiconducting Oxides for Solar-Hydrogen. Aim: To enhance the performance of titania-based semiconducting photo-electrodes for the generation of hydrogen from water using sunlight. Means: Engineering of the surface and near-surface layers so as to increase photo-sensitivity and reactivity with water. Significance: Success will provide the key functional component of photo-electrochemical cells for the mass production of renewable and clean hydrogen. In ....Surface Processing of Photo-Sensitive Semiconducting Oxides for Solar-Hydrogen. Aim: To enhance the performance of titania-based semiconducting photo-electrodes for the generation of hydrogen from water using sunlight. Means: Engineering of the surface and near-surface layers so as to increase photo-sensitivity and reactivity with water. Significance: Success will provide the key functional component of photo-electrochemical cells for the mass production of renewable and clean hydrogen. Innovation: For the first time, the properties controlling photo-sensitivity (defect disorder; charge transport; and chemically-induced, local, surface electric fields) will be modified. Outcomes: Technologies for the production of fuel (hydrogen) using renewable energy (solar energy) and a renewable resource (water).
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P-Type Titanium Dioxide for Hydrogen Generation from Water using Solar Energy. This project aims to develop a completely new processing technology for photo-sensitive oxide materials based on titanium dioxide for the conversion of renewable energy (solar energy) into chemical energy (hydrogen) or electrical energy (photovoltaic). When commercialised, the resultant technology will allow Australia to achieve the following: a) reduction in air pollution, b) reduction in greenhouse gas emissions, c) ....P-Type Titanium Dioxide for Hydrogen Generation from Water using Solar Energy. This project aims to develop a completely new processing technology for photo-sensitive oxide materials based on titanium dioxide for the conversion of renewable energy (solar energy) into chemical energy (hydrogen) or electrical energy (photovoltaic). When commercialised, the resultant technology will allow Australia to achieve the following: a) reduction in air pollution, b) reduction in greenhouse gas emissions, c) reduction in reliance on foreign energy sources, d) development of a range of ancillary technologies and infrastructure, and e) export of solar energy in the form of solar-hydrogen. This project addresses National Priorities #1 and #3.Read moreRead less
PROCESSING OF REDUCED-BAND-GAP TITANIA FOR SOLAR-HYDROGEN. The present project involves the development of materials and devices for solar-hydrogen using photo-assisted water decomposition. The research focusses on the processing of titanium dioxide (titania) with substantially enhanced photo-sensitivity and, consequently, increased efficiency of the conversion of solar energy into chemical energy (hydrogen) through imposition of the optimal Ti/O ratio. Significance: processing technology of tit ....PROCESSING OF REDUCED-BAND-GAP TITANIA FOR SOLAR-HYDROGEN. The present project involves the development of materials and devices for solar-hydrogen using photo-assisted water decomposition. The research focusses on the processing of titanium dioxide (titania) with substantially enhanced photo-sensitivity and, consequently, increased efficiency of the conversion of solar energy into chemical energy (hydrogen) through imposition of the optimal Ti/O ratio. Significance: processing technology of titania for photo-electrochemical devices for hydrogen generation and water decontamination. Innovation: processing of titania with reduced band-gap to be achieved through optimised oxygen nonstoichiometry. Outcome: processing technology of titania with outstanding photo-sensitivity.Read moreRead less
TITANIA-BASED MATERIALS WITH ENHANCED PHOTO-SENSITIVITY FOR SOLAR-HYDROGEN. Aims: Enhancement of the photo-sensitivity of titania photo-electrodes will be achieved through the effect of aliovalent ions in the titania lattice, leading to, at a high density of states, the imposition of mid-gap bands. This will result in the reduction of the effective band gap required for ionisation. Significance: The practical application of titania for the photolysis of water using solar energy at efficiencies s ....TITANIA-BASED MATERIALS WITH ENHANCED PHOTO-SENSITIVITY FOR SOLAR-HYDROGEN. Aims: Enhancement of the photo-sensitivity of titania photo-electrodes will be achieved through the effect of aliovalent ions in the titania lattice, leading to, at a high density of states, the imposition of mid-gap bands. This will result in the reduction of the effective band gap required for ionisation. Significance: The practical application of titania for the photolysis of water using solar energy at efficiencies sufficiently high for commercialisation (greater than 10%). Innovation: Examination for the first time of the impact of the electronic structure on the photo-sensitivity of oxide materials, including titania single crystals and polycrystals.Read moreRead less
An Innovative Solid-State Approach to Enhanced Solar-Hydrogen Production. The project will make a major step towards the development of solar-hydrogen technology, which promises to deliver a clean and renewable fuel - hydrogen - from water (seawater or other) using sunlight and a suitable photo-catalytic material. Not only will solar-hydrogen assist Australia to reduce its dependence on imported energy, but will also reduce Australia's carbon emissions and overall contribution to climate change. ....An Innovative Solid-State Approach to Enhanced Solar-Hydrogen Production. The project will make a major step towards the development of solar-hydrogen technology, which promises to deliver a clean and renewable fuel - hydrogen - from water (seawater or other) using sunlight and a suitable photo-catalytic material. Not only will solar-hydrogen assist Australia to reduce its dependence on imported energy, but will also reduce Australia's carbon emissions and overall contribution to climate change. When commercialized, solar-hydrogen technology may also enable Australia to become a global leader in the export of clean fuel, which will have very positive, far-reaching consequences for the economy.Read moreRead less
Efficient One-Dimensional Photocatalysts from Titanate Nanofibres and Nanotubes. This project will deliver important fundamental knowledge for the development of high-value products of titania, and thus will contribute directly to the priority goal of transforming the existing titania industry through value adding and export on the international market. This research will lead to new industries and will create employment opportunities for Australians. It will also serve to train young scientists ....Efficient One-Dimensional Photocatalysts from Titanate Nanofibres and Nanotubes. This project will deliver important fundamental knowledge for the development of high-value products of titania, and thus will contribute directly to the priority goal of transforming the existing titania industry through value adding and export on the international market. This research will lead to new industries and will create employment opportunities for Australians. It will also serve to train young scientists with a real appreciation of materials research and engineering, contributing to the overall competitiveness and productivity of Australian R&D. This project would lead to advances in important fields of clean energy, environment remediation and advanced materials processing in Australia.Read moreRead less
Reactions of Nanoparticles of Metal Oxides and Hydrous Oxides and their Applications in Photocatalysts and Electrode Materials. Australia is a world-leading producer of raw materials of many metallic elements, most of which are exported at low-values. This project will yield important knowledge in new synthetic techniques for making nanostructures of metal oxides. These tiny particles already have a large worldwide market, but the discovery of particles with superior properties or new applicatio ....Reactions of Nanoparticles of Metal Oxides and Hydrous Oxides and their Applications in Photocatalysts and Electrode Materials. Australia is a world-leading producer of raw materials of many metallic elements, most of which are exported at low-values. This project will yield important knowledge in new synthetic techniques for making nanostructures of metal oxides. These tiny particles already have a large worldwide market, but the discovery of particles with superior properties or new applications could lead to new industries and high-value exports. This project aims to devise novel photocatalysts for solar energy conversion and environmental protection, and electrode materials for lithium batteries. It will contribute to the overall competitiveness and productivity of Australian R&D by advancing scientific knowledge and training young researchers.Read moreRead less
Novel Photo-Catalysts for Water Oxidation: Linking Nature to New Technologies. Photosynthesis is the catalytic process used by biology to convert the sun's light into energy. This project aims to mimic photosynthesis with cheap and robust molecules. The approach has great potential for development of renewable energy production and benign industrial chemical processes. The project will bring Australia to the international forefront of this field. It will provide excellent research training in a ....Novel Photo-Catalysts for Water Oxidation: Linking Nature to New Technologies. Photosynthesis is the catalytic process used by biology to convert the sun's light into energy. This project aims to mimic photosynthesis with cheap and robust molecules. The approach has great potential for development of renewable energy production and benign industrial chemical processes. The project will bring Australia to the international forefront of this field. It will provide excellent research training in a range of scientific skills for Australian research students. Read moreRead less
Bio-inspired Catalysts for Water Oxidation. Successful completion of the project will result in the development of devices that utilise redox active manganese clusters to catalyse the oxidation of water. This achievement would place us at the forefront of international efforts to develop devices that can split water into hydrogen and oxygen, an endeavour which has the potential to solve pressing energy demands. As an added benefit, these devices can be adapted for the purposes of carrying out th ....Bio-inspired Catalysts for Water Oxidation. Successful completion of the project will result in the development of devices that utilise redox active manganese clusters to catalyse the oxidation of water. This achievement would place us at the forefront of international efforts to develop devices that can split water into hydrogen and oxygen, an endeavour which has the potential to solve pressing energy demands. As an added benefit, these devices can be adapted for the purposes of carrying out the catalytic oxidation of organic substrates, for which a variety of industrial and environmental applications can be envisaged.
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Ionic Liquids and Solids - New Designs, Insights and Applications. Ionic Materials in the form of liquid salts and plastic crystals are of interest in a wide range of applications including environmentally benign synthesis of chemicals and high stability electrolytes for batteries, capacitors and other devices. These materials represent some of the most stable chemicals known, making them attractive for any application where complete stability and recycling are issues. Building on our recent wor ....Ionic Liquids and Solids - New Designs, Insights and Applications. Ionic Materials in the form of liquid salts and plastic crystals are of interest in a wide range of applications including environmentally benign synthesis of chemicals and high stability electrolytes for batteries, capacitors and other devices. These materials represent some of the most stable chemicals known, making them attractive for any application where complete stability and recycling are issues. Building on our recent work, this project will design, prepare and characterize novel materials of this type for a number of target applications. Collaborators in Europe and USA will be involved in the analysis and testing of the materials.Read moreRead less