Experimental and modelling development of advanced symmetrical fuel cells. Fuel cells are advanced energy conversion devices with high efficiency and low emissions. The overall goal of this project is to increase the competitiveness of the fuel cell technology with currently matured power generation technologies based on fossil fuel combustion through innovations. Both experimental development and modelling studies will be performed. It is expected that: reduced materials, fabrication and mainte ....Experimental and modelling development of advanced symmetrical fuel cells. Fuel cells are advanced energy conversion devices with high efficiency and low emissions. The overall goal of this project is to increase the competitiveness of the fuel cell technology with currently matured power generation technologies based on fossil fuel combustion through innovations. Both experimental development and modelling studies will be performed. It is expected that: reduced materials, fabrication and maintenance costs; improved performance; increased coking resistance and sulfur tolerance; and prolonged lifetime of solid oxide fuel cells will be achieved. This project endeavours to advance the field of electrochemical energy conversion. It is also expected to expand the science and engineering knowledge base and pave the way to sustainable energy systems.Read moreRead less
Advanced Proton-Conducting Ceramic FCs for Power Generation from Ammonia . The project aims to design an innovative ammonia fuel cell using a new perovskite substrate decorated with metal nanoparticles, which demonstrates multi-functionalities and tackles most challenges of conventional fuel cells (FCs). The key concept of this project is the designing of the novel architected smart perovskite as both anode and electrolyte of the fuel cell by systematic modelling and experimental development. T ....Advanced Proton-Conducting Ceramic FCs for Power Generation from Ammonia . The project aims to design an innovative ammonia fuel cell using a new perovskite substrate decorated with metal nanoparticles, which demonstrates multi-functionalities and tackles most challenges of conventional fuel cells (FCs). The key concept of this project is the designing of the novel architected smart perovskite as both anode and electrolyte of the fuel cell by systematic modelling and experimental development. The versatile cell components developed in this project will improve the operational stability and efficiency of the fuel cell, thereby providing a promising pathway for ammonia fuel cells to replace hydrogen fuel cells. This study will reinforce the development of the future supply of reliable, low cost and clean energy. Read moreRead less
Hybrid Hydrocarbon-Carbon Fuel Cells for Long-Life Power Generation. This project aims to design an innovative high-energy portable power source based on a hybrid direct hydrocarbon-carbon fuel cell concept, in which the deposited carbon in the anode of a fuel cell during operation with liquid hydrocarbon fuels can be used as a fuel by subsequent operation in the direct carbon fuel cell mode. The key concept in this project is the controlled deposition and utilization of carbon over the anode of ....Hybrid Hydrocarbon-Carbon Fuel Cells for Long-Life Power Generation. This project aims to design an innovative high-energy portable power source based on a hybrid direct hydrocarbon-carbon fuel cell concept, in which the deposited carbon in the anode of a fuel cell during operation with liquid hydrocarbon fuels can be used as a fuel by subsequent operation in the direct carbon fuel cell mode. The key concept in this project is the controlled deposition and utilization of carbon over the anode of the fuel cell by systematic modelling and experimental development. A continuous power output will be realized via an intelligent cycling mode with an intermittent supply of pure liquid hydrocarbon fuels, thereby achieving an extremely high fuel utilization efficiency in a hybrid electrochemical system.Read moreRead less
Detailed understanding of the behaviour of soot in, and emission from, turbulent flames and fires. While combustion processes involving soot have been widely employed for many years, their great complexity puts them beyond present capacity to understand or model reliably. Within a flame, soot plays an important role in radiant heat transfer, and hence in energy efficiency. Beyond a flame, soot can either be emitted as an unwanted air pollutant or as a desirable source of nano-particles, dependin ....Detailed understanding of the behaviour of soot in, and emission from, turbulent flames and fires. While combustion processes involving soot have been widely employed for many years, their great complexity puts them beyond present capacity to understand or model reliably. Within a flame, soot plays an important role in radiant heat transfer, and hence in energy efficiency. Beyond a flame, soot can either be emitted as an unwanted air pollutant or as a desirable source of nano-particles, depending on the application. The benefits to society from improved understanding and predictive capability include reduced air pollution, improved health and safety, increased efficiency in the utilisation of both fossil and alternative fuels, the support of the rapidly growing sector employing carbon nano-particles and increased fire safety. Read moreRead less
Study of hydrocarbon flames under heat and gas recirculation conditions. This project aims to study gaseous flames under heat and gas recirculation conditions. This technology has been proven to reduce fuel consumption, improve thermal efficiency and substantially reduce nitric oxides emission. The effect of mixing, turbulence and temperature on the structure and stability of these flames will be investigated. The project combines experimental and computational research applied to a laboratory s ....Study of hydrocarbon flames under heat and gas recirculation conditions. This project aims to study gaseous flames under heat and gas recirculation conditions. This technology has been proven to reduce fuel consumption, improve thermal efficiency and substantially reduce nitric oxides emission. The effect of mixing, turbulence and temperature on the structure and stability of these flames will be investigated. The project combines experimental and computational research applied to a laboratory scale burner and a small scale furnace. The main objectives are to better understand the chemical pathways in low temperature hydrocarbon flames under heat and gas recirculation conditions and to understand the effect of mixing and turbulence on the flame structure and pollutants emission.Read moreRead less
A defect mechanism for oxygen reduction reaction. This project aims to use defective carbon to replace expensive platinum as a catalyst for oxygen reduction reaction (ORR) in fuel cells. Defective carbons incorporating non-precious metals are better than platinum in terms of over-potential, current density and number of electron transfer. They reduce the overall fuel cell cost but their better stability and higher open voltage and power density promise huge commercial benefit. This project is ex ....A defect mechanism for oxygen reduction reaction. This project aims to use defective carbon to replace expensive platinum as a catalyst for oxygen reduction reaction (ORR) in fuel cells. Defective carbons incorporating non-precious metals are better than platinum in terms of over-potential, current density and number of electron transfer. They reduce the overall fuel cell cost but their better stability and higher open voltage and power density promise huge commercial benefit. This project is expected to be important for large-scale implementation of fuel cells.Read moreRead less
Selective generation of hydrogen from biomass and waste fuels. Biomass fuels account for 14% of global energy supply. This is likely to increase in future as the population increases, energy demand rises, cheap oil and coal reserves are depleted, and the effects of global warming become more readily visible. In Australia the development of a sustainable hydrogen economy is a national priority. The hydrogen economy could bring about improved energy security, substantially reduced greenhouse gas e ....Selective generation of hydrogen from biomass and waste fuels. Biomass fuels account for 14% of global energy supply. This is likely to increase in future as the population increases, energy demand rises, cheap oil and coal reserves are depleted, and the effects of global warming become more readily visible. In Australia the development of a sustainable hydrogen economy is a national priority. The hydrogen economy could bring about improved energy security, substantially reduced greenhouse gas emissions, improved energy efficiency and improved air quality. This proposal directly addresses this challenge by investigating the science underpinning a large-scale sustainable hydrogen synthesis process using biomass and waste fuels. Read moreRead less
The Effects of Pyrolysis Conditions on Combustion and Gasification Reactivities of Biomass Chars and the Quality of Their Ash. Considerable efforts are being made to minimise the environmental impacts of fossil fuels by utilising renewable energy sources like biomass. Many of the challenges associated with the thermal conversion of biomass relate to its char characteristics. The aim of this project is to gain a fundamental understanding about the impact of reaction conditions during the pyrolyti ....The Effects of Pyrolysis Conditions on Combustion and Gasification Reactivities of Biomass Chars and the Quality of Their Ash. Considerable efforts are being made to minimise the environmental impacts of fossil fuels by utilising renewable energy sources like biomass. Many of the challenges associated with the thermal conversion of biomass relate to its char characteristics. The aim of this project is to gain a fundamental understanding about the impact of reaction conditions during the pyrolytic stage on the structural and compositional transformations of the resultant char, its combustion and gasification reactivities, and the release of inorganic matter and ash formation. This holistic and integrated approach should reveal the underlying science necessary to support existing and future biomass use.Read moreRead less
A Comprehensive Kinetic Model for Sulfur Reactions in Combustion, Gasification, and Chemical Processing. Sulfur chemistry in high temperature processes is poorly understood, leading to uncertainties in the design of these processes and in the control of their emissions. In particular, new approaches to lowering greenhouse emissions which depend on the combustion and gasification of coal, biomass, or refuse-derived fuel, such as integrated gasification combined cycle processes, are especially aff ....A Comprehensive Kinetic Model for Sulfur Reactions in Combustion, Gasification, and Chemical Processing. Sulfur chemistry in high temperature processes is poorly understood, leading to uncertainties in the design of these processes and in the control of their emissions. In particular, new approaches to lowering greenhouse emissions which depend on the combustion and gasification of coal, biomass, or refuse-derived fuel, such as integrated gasification combined cycle processes, are especially affected by these uncertainties. This project seeks to combine experimental measurements and quantum chemical modelling to produce a detailed mechanistic model for the reactions of sulfur in high-temperature systems. Such a model will provide designers with a tool to optimise these complex interacting systems.Read moreRead less
Doped metal perovskites for electrocatalysis. This project aims to discover and design perovskite metal-oxide electrocatalyst materials and develop electrocatalytic methods for efficiently driving the oxygen evolution reaction and the oxygen reduction reaction. These are the two most crucial reactions in sustainable energy cycles involving water, hydrogen and oxygen. The project’s anticipated advances in electrocatalysis efficiency for these two reactions will benefit sustainable energy technolo ....Doped metal perovskites for electrocatalysis. This project aims to discover and design perovskite metal-oxide electrocatalyst materials and develop electrocatalytic methods for efficiently driving the oxygen evolution reaction and the oxygen reduction reaction. These are the two most crucial reactions in sustainable energy cycles involving water, hydrogen and oxygen. The project’s anticipated advances in electrocatalysis efficiency for these two reactions will benefit sustainable energy technologies such as fuel cells, metal air batteries and water splitting.Read moreRead less