Hydrogen storage materials for energy conversion applications. For a clean environment, the ideal synthetic fuel is hydrogen because it is lightweight, highly abundant and its oxidation product (water) is environmentally benign. However, the effective storage of hydrogen remains a scientific challenge. This project aims to develop innovative materials with high hydrogen storage capacity and long cycle life, including new composite hydrides, catalysed metal hydrides and various nanotubes. The exp ....Hydrogen storage materials for energy conversion applications. For a clean environment, the ideal synthetic fuel is hydrogen because it is lightweight, highly abundant and its oxidation product (water) is environmentally benign. However, the effective storage of hydrogen remains a scientific challenge. This project aims to develop innovative materials with high hydrogen storage capacity and long cycle life, including new composite hydrides, catalysed metal hydrides and various nanotubes. The expected outcome is the achievement of high reversible hydrogen storage capacity to meet all the demands required for energy conversion applications, in particular, for hydrogen storage/fuel-cell vehicular applications.Read moreRead less
Improvement and synthesis of advanced hydrogen storage materials for fuel cell applications. Energy systems of the future must be cleaner and much more efficient, flexible, and reliable to meet the growing global demand for energy. A hydrogen economy offers a potential solution to satisfying the global energy requirements while reducing carbon dioxide and other greenhouse gas emissions and improving energy security. The enhanced hydrogen storage materials to be investigated will have higher hydr ....Improvement and synthesis of advanced hydrogen storage materials for fuel cell applications. Energy systems of the future must be cleaner and much more efficient, flexible, and reliable to meet the growing global demand for energy. A hydrogen economy offers a potential solution to satisfying the global energy requirements while reducing carbon dioxide and other greenhouse gas emissions and improving energy security. The enhanced hydrogen storage materials to be investigated will have higher hydrogen storage capacity, which can have applications in a variety of areas, including the storage and transport of hydrogen, fuel cells and electric automobiles.Read moreRead less
Nickel(III) Oxyhydroxide (NiOOH) as a Positive Electrode Material in Primary Cells. In recent years, the demands put on batteries has increased due to the development of sophisticated portable electronic devices. With the currently available primary battery systems finding it difficult to cope with these demands, there is considerable incentive to develop an improved system with an appropriate capability. This project focuses on nickel(III) oxyhydroxide (NiOOH) as a cathode material. NiOOH is us ....Nickel(III) Oxyhydroxide (NiOOH) as a Positive Electrode Material in Primary Cells. In recent years, the demands put on batteries has increased due to the development of sophisticated portable electronic devices. With the currently available primary battery systems finding it difficult to cope with these demands, there is considerable incentive to develop an improved system with an appropriate capability. This project focuses on nickel(III) oxyhydroxide (NiOOH) as a cathode material. NiOOH is used widely in rechargeable battery systems, where it performs adequately even under severe discharge conditions. However, in primary battery systems, NiOOH suffers from self discharge. This project aims to use the performance capabilities of NiOOH in a primary system, by investigating ways to improve its stability. The benefits for Delta EMD will be protection of their existing business, as well as opening the door to the commercial manufacture of an advanced export material.Read moreRead less
Capacitance Fade Mechanisms in Carbon-Based Supercapacitors. Energy storage is of significant importance to the global community. This project addresses certain performance issues concerning prolonged energy storage in supercapacitors, which are an emerging technology in the electronics industry. CAP-XX is Australia's only manufacturer of supercapacitors, and the improvements to their products that will result from this work, will lead to significant returns to them and the Australian economy.
Improving solar energy utilisation by splitting water with visible light. The project seeks to improve solar-hydrogen fuel production via water splitting by addressing a fundamental scientific roadblock. By engineered nanostructures with controlled charge transfer abilities, the most desirable route to water splitting will be promoted; granting Australia an opportunity to develop a solar-based renewable fuel.
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
Composite oxides as next-generation photocatalysts for solar energy capture. This project aims to prepare new photocatalysts that capture and convert solar energy to stored energy by directly splitting water into oxygen and hydrogen, a perfectly clean and renewable fuel. The project will use a "bottom-up" nanoscale approach, in which compounds with different chemical and electronic properties, but with compatible crystal structures in at least one dimension, are assembled in a single synthetic s ....Composite oxides as next-generation photocatalysts for solar energy capture. This project aims to prepare new photocatalysts that capture and convert solar energy to stored energy by directly splitting water into oxygen and hydrogen, a perfectly clean and renewable fuel. The project will use a "bottom-up" nanoscale approach, in which compounds with different chemical and electronic properties, but with compatible crystal structures in at least one dimension, are assembled in a single synthetic step to form a well-ordered composite. By making composites of compounds the band gaps - crucial to capturing light - and surfaces -crucial to evolving hydrogen and oxygen gas- of which complement each other, the project can deliver higher performing materials at a lower cost than can be achieved by conventional top-down modification. The project will deliver new and improved photocatalysts that will hasten progress towards commercially viable systems, helping to establish a new technology and putting pressure on competing technologies such as photovoltaics and wind to drive the renewables sector forward.Read moreRead less