Concepts towards the next generation of dye-sensitised solar cells: tandem and plasmonic solar cells. This project aims at exploring the feasibility of novel device concepts to enhance the performance of dye-sensitised solar cells. These concepts include tandem solar cells as well as novel energy relay systems based on the ability of nanoparticles to effectively act as antenna systems that can funnel energy towards a sensitising dye molecule.
Development of novel cathodes for next generation solid oxide fuel cells. This project will provide novel cathodes to reduce the operating temperature of the Solid Oxide Fuel Cell (SOFC) as low as 500 degrees celsius. The technology may lead to widespread utilization of SOFCs, thus providing great assistance to Australia's industries in term of reducing carbon dioxide emission and easing pressure from carbon tax.
Hybrid cathode for low temperature solid oxide fuel cells. This project aims to develop molten carbonate-perovskite hybrid cathode materials for low temperature solid oxide fuel cells (LT-SOFCs) possessing both high catalytic activity towards oxygen reduction reaction (ORR) and high tolerance to carbon dioxide poisoning. Carbon dioxide in air can poison nearly all the perovskite cathode materials developed for LT-SOFCs (below 600 degrees C) so far. These materials will not be practically useful ....Hybrid cathode for low temperature solid oxide fuel cells. This project aims to develop molten carbonate-perovskite hybrid cathode materials for low temperature solid oxide fuel cells (LT-SOFCs) possessing both high catalytic activity towards oxygen reduction reaction (ORR) and high tolerance to carbon dioxide poisoning. Carbon dioxide in air can poison nearly all the perovskite cathode materials developed for LT-SOFCs (below 600 degrees C) so far. These materials will not be practically useful until carbon dioxide poisoning can be prevented. This project expects to make these LT-SOFC cathode materials commercially viable, solving a problem for the widespread use of low temperature solid oxide fuel cells.Read moreRead less
Engineering the Microstructure of Electrodes for Advanced Fuel Cells. A polymer solution-based integration technique is proposed to be developed to fabricate polymer electrolyte membrane fuel cells, allowing for effective engineering of the porous networks and interfaces within electrodes and cells. This novel systems materials engineering approach is expected to overcome the drawbacks of the conventional hot pressing method, enabling precise integration of nanostructured electrodes and membrane ....Engineering the Microstructure of Electrodes for Advanced Fuel Cells. A polymer solution-based integration technique is proposed to be developed to fabricate polymer electrolyte membrane fuel cells, allowing for effective engineering of the porous networks and interfaces within electrodes and cells. This novel systems materials engineering approach is expected to overcome the drawbacks of the conventional hot pressing method, enabling precise integration of nanostructured electrodes and membrane into high-performance, flexible fuel cells. The outcomes of this research aim to provide a unique opportunity for Australia to become a world leader in the rapidly-emerging clean energy technology, and critical manufacturing of new energy generation systems for domestic uses and exports, thereby producing important economic benefits.Read moreRead less
High Performance Anode for Direct Ammonia Solid Oxide Fuel Cells. Solid oxygen fuel cells are a clean energy generation device with very high energy efficiency and if with hydrogen as fuel, the emission is zero. However, the utilisation of hydrogen is limited by on-board storage. Ammonia is a promising hydrogen carrier and can be directly fed to solid oxide fuel cells without fuel storage problem, and the products are just hydrogen and nitrogen. For direct ammonia solid oxide fuel cells, the key ....High Performance Anode for Direct Ammonia Solid Oxide Fuel Cells. Solid oxygen fuel cells are a clean energy generation device with very high energy efficiency and if with hydrogen as fuel, the emission is zero. However, the utilisation of hydrogen is limited by on-board storage. Ammonia is a promising hydrogen carrier and can be directly fed to solid oxide fuel cells without fuel storage problem, and the products are just hydrogen and nitrogen. For direct ammonia solid oxide fuel cells, the key challenge is the anode. This project aims to develop a high performance anode for direct ammonia solid oxide fuel cells with both high activity and high stability at low temperature (below 600 degree C), thus addressing a key issue to make the direct ammonia solid oxide fuel cells commercially viable.Read moreRead less
Composites for thermal expansion matched oxygen electrodes. This project aims to develop high performance composite oxygen electrodes by using both negative thermal expansion materials and electrolyte materials to tailor the thermal expansion and activities of the perovskite-based electrodes for use in reduced temperature solid oxide cells. Such composite electrodes will show highly matched thermal expansion with electrolyte without sacrificing high activity at reduced temperatures. This project ....Composites for thermal expansion matched oxygen electrodes. This project aims to develop high performance composite oxygen electrodes by using both negative thermal expansion materials and electrolyte materials to tailor the thermal expansion and activities of the perovskite-based electrodes for use in reduced temperature solid oxide cells. Such composite electrodes will show highly matched thermal expansion with electrolyte without sacrificing high activity at reduced temperatures. This project seeks to address an important practical issue in the operation of solid oxide power cells - thermal expansion compatibility, which causes poor efficiency outside a narrow temperature band.Read moreRead less
Nitride materials: In the “bond ionicity Goldilocks zone” for solar energy. Progress towards commercial devices for solar-driven hydrogen generation as well as in-situ electricity generation for vehicles is currently hampered by a lack of earth-abundant, stable, non-toxic semiconductor materials that can be fabricated by scalable methods. This project aims to develop the first scalable solution synthesis methods for a new class of earth-abundant Zn-based nitride semiconductor nanocrystals that h ....Nitride materials: In the “bond ionicity Goldilocks zone” for solar energy. Progress towards commercial devices for solar-driven hydrogen generation as well as in-situ electricity generation for vehicles is currently hampered by a lack of earth-abundant, stable, non-toxic semiconductor materials that can be fabricated by scalable methods. This project aims to develop the first scalable solution synthesis methods for a new class of earth-abundant Zn-based nitride semiconductor nanocrystals that have favourable bond ionicity and establish their optoelectronic properties for renewable energy devices for the first time. Flexible solution processing methods will be exploited to tune surface composition, remove defects and create devices to achieve optimised performance in these challenging new nitride material systems.Read moreRead less
New carbon nanotube electrocatalysts for water splitting and fuel cells. The demand for clean, secure and sustainable energy sources has stimulated great interest in electrochemical energy storage and conversion technologies such as water splitting and fuel cells. The efficiency of water splitting and fuel cells is however strongly dependent on the activity of the electrocatalysts. The objective of the project is to develop new electrocatalysts based on the recently discovered phenomena that car ....New carbon nanotube electrocatalysts for water splitting and fuel cells. The demand for clean, secure and sustainable energy sources has stimulated great interest in electrochemical energy storage and conversion technologies such as water splitting and fuel cells. The efficiency of water splitting and fuel cells is however strongly dependent on the activity of the electrocatalysts. The objective of the project is to develop new electrocatalysts based on the recently discovered phenomena that carbon nanotubes with specific size and number of walls are very active and significantly promote the reaction of water splitting and fuel cells. The proposed project is expected to open a new research field in the development of new electrocatalysts and photoelectrocatalysts for advanced energy conversion and storage technologies.Read moreRead less
Oxide-based high temperature proton exchange membrane fuel cells. Proton exchange membrane fuel cells (PEMFCs) are one of the most efficient energy conversion technologies for producing electricity from fuels such as hydrogen and methanol. Current PEMFCs use precious metal catalysts, and the performance of liquid methanol fuel is disappointingly low due to the inability of polymer or hybrid membranes to operate at temperatures above 160-180 degrees centigrade. This work aims to develop an all ox ....Oxide-based high temperature proton exchange membrane fuel cells. Proton exchange membrane fuel cells (PEMFCs) are one of the most efficient energy conversion technologies for producing electricity from fuels such as hydrogen and methanol. Current PEMFCs use precious metal catalysts, and the performance of liquid methanol fuel is disappointingly low due to the inability of polymer or hybrid membranes to operate at temperatures above 160-180 degrees centigrade. This work aims to develop an all oxide-based PEMFC technology using a recently developed sintered and heteropolyacid functionalised mesoporous silica membrane. The utilisation of all-oxide-PEMFCs using non-precious metal catalysts is expected to significantly enhance the power density, reduce costs, and enhance the commercial viability of PEMFC technologies.Read moreRead less
Advanced electrocatalysts for ammonia synthesis with validated analysis. Ammonia is one of the most produced chemicals worldwide but current manufacturing industries consume massive amounts of energy and emit harmful greenhouse gases. This project aims to develop a sustainable electrochemical system for ammonia synthesis using electricity and atmospheric nitrogen. A family of porous catalysts with nanoconfined ionic liquids will be developed to drive nitrogen reduction by enhancing the reaction ....Advanced electrocatalysts for ammonia synthesis with validated analysis. Ammonia is one of the most produced chemicals worldwide but current manufacturing industries consume massive amounts of energy and emit harmful greenhouse gases. This project aims to develop a sustainable electrochemical system for ammonia synthesis using electricity and atmospheric nitrogen. A family of porous catalysts with nanoconfined ionic liquids will be developed to drive nitrogen reduction by enhancing the reaction kinetics. Rigorous experimental protocols and novel analytical methods will be developed for quantification of electro-synthesised ammonia. A prototype gas diffusion layer-assisted electrolyser will be demonstrated by coupling with oxygen evolution reactions for selective ammonia synthesis at a reasonable production rate.Read moreRead less