Electrocatalytic Generation of Ammonia from Air and Water. The aim is to directly convert nitrogen under mild conditions, using renewable power, to form ammonia for fertilisers and fuels, enabled by new, nanostructured, electrocatalysts based on single-sheet and composite materials. Unlike nitrogen fixation using a three-electrode system, the project will use a novel mixed gas- and liquid-phase electrocatalytic nitrogen reduction two-electrode reactor. Based on fuel cells, it is designed to acce ....Electrocatalytic Generation of Ammonia from Air and Water. The aim is to directly convert nitrogen under mild conditions, using renewable power, to form ammonia for fertilisers and fuels, enabled by new, nanostructured, electrocatalysts based on single-sheet and composite materials. Unlike nitrogen fixation using a three-electrode system, the project will use a novel mixed gas- and liquid-phase electrocatalytic nitrogen reduction two-electrode reactor. Based on fuel cells, it is designed to accelerate the naturally sluggish nitrogen reduction reaction, NRR, significantly improving the reaction rate and selectivity. The project will also gain atomic-level understanding of the mechanism of NRR, based on in-situ spectroscopies used under operando conditions, e.g., Raman or X-ray absorption.Read moreRead less
Development and Use of Ionic Liquids in Metal Recovery from Ores, Concentrates and Mattes. Ionic liquids, which are liquid over a wide temperature range and can dissolve a wide range of solutes to high concentrations, promise new and yet unexplored approaches in processing ores. We aim to prepare ionic liquids and apply these to increase the intensity of copper and gold sulfide processing, and to explore more efficient separation of platinum group metals from mattes. New oxidative leaching techn ....Development and Use of Ionic Liquids in Metal Recovery from Ores, Concentrates and Mattes. Ionic liquids, which are liquid over a wide temperature range and can dissolve a wide range of solutes to high concentrations, promise new and yet unexplored approaches in processing ores. We aim to prepare ionic liquids and apply these to increase the intensity of copper and gold sulfide processing, and to explore more efficient separation of platinum group metals from mattes. New oxidative leaching techniques will be developed to diminish ore passivation and enhance recovery; high current electrowinning of copper in ionic liquids will be probed. Evolving technology should yield economic and environmental benefits for a nationally important industry.Read moreRead less
High Efficiency Electrochemical Cells. This project will study a recently developed, energy efficient ‘capillary-fed’ electrochemical cell architecture in the facilitation of various electro-energy and electro-synthetic transformations. The new cell architecture will be examined as a hydrogen-oxygen fuel cell and as a cell for extracting pure hydrogen from a 5-10% mixture of hydrogen in methane (natural gas), amongst others. The work seeks to improve upon the electrochemical performance of the b ....High Efficiency Electrochemical Cells. This project will study a recently developed, energy efficient ‘capillary-fed’ electrochemical cell architecture in the facilitation of various electro-energy and electro-synthetic transformations. The new cell architecture will be examined as a hydrogen-oxygen fuel cell and as a cell for extracting pure hydrogen from a 5-10% mixture of hydrogen in methane (natural gas), amongst others. The work seeks to improve upon the electrochemical performance of the best commercial and academic cells of such types, if possible. In increasing the efficiency with which renewable electricity can be converted into renewable hydrogen and back, this project will support the national priority of net-zero carbon emissions by 2050.Read moreRead less
Highly-efficient, reversible fuel cell. This project aims to develop a reversible fuel cell - electrolyser capable of storing electricity (in the form of hydrogen gas) with the same overall energy efficiency as the best present storage system, pumped hydro. Whereas pumped hydro requires large infrastructure like dams, the proposed cell will be extremely inexpensive and easily scalable.