AI in agriculture: hybrid machine learning models for nitrogen simulation. Agricultural simulation models are used to guide nitrogen management to reduce nitrogen loss and its environmental impact, but they were developed using constrained datasets, which restricts them to site- or regional-specific simulations. This project adopts a novel approach to addressing these problems by applying machine learning-based data analytics. The project will refine the linkages between nitrogen losses and thei ....AI in agriculture: hybrid machine learning models for nitrogen simulation. Agricultural simulation models are used to guide nitrogen management to reduce nitrogen loss and its environmental impact, but they were developed using constrained datasets, which restricts them to site- or regional-specific simulations. This project adopts a novel approach to addressing these problems by applying machine learning-based data analytics. The project will refine the linkages between nitrogen losses and their key drivers, and improve the existing agroecosystem models through data imputation, parameter optimisation and module enhancement. The outcomes of this project will lead to an accurate prediction of nitrogen losses from agriculture, advancement in agroecosystem models and their adaptability to a global context.Read moreRead less
Bioinspired tuneable catalysts for renewable ammonia production. The project will design a new solar-powered system for electrosynthesis of ammonia to replace the current energy intensive, non-sustainable process that generates 1.5% of global CO2 emissions. An innovative new system will be developed by combining cutting edge electrochemical, spectroscopic and theoretical methods. Expected key outcomes include novel concepts in the design of advanced materials, and an efficient process for the gr ....Bioinspired tuneable catalysts for renewable ammonia production. The project will design a new solar-powered system for electrosynthesis of ammonia to replace the current energy intensive, non-sustainable process that generates 1.5% of global CO2 emissions. An innovative new system will be developed by combining cutting edge electrochemical, spectroscopic and theoretical methods. Expected key outcomes include novel concepts in the design of advanced materials, and an efficient process for the green ammonia synthesis. Given the strategic importance of ammonia as a future energy carrier for the export of Australian renewables and as a major source of fertilisers, this project should provide significant national economic and ecological benefits and is expected to have a broad reaching global impact.Read moreRead less
Engineered graphene-based nanofertilizers to improve crop nutrition. This project seeks to evaluate the unique properties of graphene to more effectively engineer novel fertilizers with properties that can enhance nutrient efficiency and reduce losses to the environment. More efficient and effective fertilizer formulations are needed to improve nutrient use efficiency in agricultural systems globally, and for effective biofortification of staple food crops with essential micronutrients. Nitrogen ....Engineered graphene-based nanofertilizers to improve crop nutrition. This project seeks to evaluate the unique properties of graphene to more effectively engineer novel fertilizers with properties that can enhance nutrient efficiency and reduce losses to the environment. More efficient and effective fertilizer formulations are needed to improve nutrient use efficiency in agricultural systems globally, and for effective biofortification of staple food crops with essential micronutrients. Nitrogen may be lost from soil through leaching and gaseous losses to the atmosphere. Phosphorus, as well as copper, manganese and zinc, are prone to reactions in soils and during manufacturing which reduces their effectiveness.Read moreRead less
Plasma driven electrochemical synthesis of urea. Urea is the most used nitrogen fertilizer in the world, with more urea manufactured by mass than any other organic chemical. However, the world is experiencing a major shortage of the compound, impacting our food costs and security along with dependent products such as AdBlue (diesel exhaust fluid). Commercial urea production relies on a complex reaction between ammonia and carbon dioxide at high temperatures, which consumes more than 2% of the w ....Plasma driven electrochemical synthesis of urea. Urea is the most used nitrogen fertilizer in the world, with more urea manufactured by mass than any other organic chemical. However, the world is experiencing a major shortage of the compound, impacting our food costs and security along with dependent products such as AdBlue (diesel exhaust fluid). Commercial urea production relies on a complex reaction between ammonia and carbon dioxide at high temperatures, which consumes more than 2% of the world’s energy. This project aims to produce more sustainable urea driven by electricity and using air and captured CO2, through the use of a plasma-driven electrochemical technology, providing farmers with a low-cost fertilizer under a decentralized and secure supply. Read moreRead less
Using chemistry to illuminate sulfoglycolysis, a major organosulfur pathway. This project aims to develop a detailed molecular description of the sulfoglycolysis pathway, a major pathway involved in cycling an abundant sulfolipid. The project will use an integrated chemical, biochemical and structural approach to illuminate how sulfoglycolysis degrades sulfolipid to access its elemental and energy constituents. Expected outcomes include an advanced understanding of the biosulfur cycle, the devel ....Using chemistry to illuminate sulfoglycolysis, a major organosulfur pathway. This project aims to develop a detailed molecular description of the sulfoglycolysis pathway, a major pathway involved in cycling an abundant sulfolipid. The project will use an integrated chemical, biochemical and structural approach to illuminate how sulfoglycolysis degrades sulfolipid to access its elemental and energy constituents. Expected outcomes include an advanced understanding of the biosulfur cycle, the development of new chemical approaches to manipulate sulfur cycling for agricultural and biotechnology applications, and deepened ties to leading international researchers. Potential benefits include new strategies to reduce dependence on agricultural fertilisers, promote gut wellbeing, and control insect pests.Read moreRead less
Australian clays as raw materials of slow-release phosphate fertiliser. Phosphorus (P) fertiliser input in Australia is a significant problem for its inefficient plant uptake, leaching to natural water bodies and stocking of insoluble P in soil. The project aims to develop activated clays using Australian raw clay minerals to formulate effective slow-release phosphate (P) fertilisers (SRF) and delivery material for P-solubilising bacteria. Composite of these will supply P controllably even amid ....Australian clays as raw materials of slow-release phosphate fertiliser. Phosphorus (P) fertiliser input in Australia is a significant problem for its inefficient plant uptake, leaching to natural water bodies and stocking of insoluble P in soil. The project aims to develop activated clays using Australian raw clay minerals to formulate effective slow-release phosphate (P) fertilisers (SRF) and delivery material for P-solubilising bacteria. Composite of these will supply P controllably even amid environmental fluctuations but when a plant needs as it grows. Development of multifunctional, nontoxic and plant growth-driven P fertiliser would benefit improve soil fertility in a sustainable way where efficiency of P input is maximised with a minimised environmental burden.Read moreRead less
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
Integrated composite electrodes for electrochemical synthesis of ammonia. This project aims to develop multifunctional composite electrodes for electrochemical synthesis of ammonia from water, nitrogen gas and renewable energy under ambient conditions. Hydrophobic subnanometre water channels will be integrated with an electrocatalyst to control supply of water as vapour, thereby effectively minimising hydrogen evolution reaction and enabling high-efficiency ammonia synthesis. Expected outcomes i ....Integrated composite electrodes for electrochemical synthesis of ammonia. This project aims to develop multifunctional composite electrodes for electrochemical synthesis of ammonia from water, nitrogen gas and renewable energy under ambient conditions. Hydrophobic subnanometre water channels will be integrated with an electrocatalyst to control supply of water as vapour, thereby effectively minimising hydrogen evolution reaction and enabling high-efficiency ammonia synthesis. Expected outcomes include enhanced capacity in developing electrochemical reaction systems, and new fundamental knowledge of electrocatalyst design and reaction engineering. This should provide significant economic and environmental benefits by developing a sustainable manufacturing technology to transform the century-old ammonia industry.Read moreRead less
Plasma-catalytic bubbles for sustainable ammonia. Ammonia is one of the world’s most important chemicals directly sustaining over 50% of our food supply. But the current means of its production is highly eco-destructive and responsible for over 1% of global CO2 emissions, a similar value to global air travel. This project aims to produce ammonia from renewable sources of water, electricity and air, which can provide farmers with a zero-carbon fertilizer under a decentralized and even farm-level ....Plasma-catalytic bubbles for sustainable ammonia. Ammonia is one of the world’s most important chemicals directly sustaining over 50% of our food supply. But the current means of its production is highly eco-destructive and responsible for over 1% of global CO2 emissions, a similar value to global air travel. This project aims to produce ammonia from renewable sources of water, electricity and air, which can provide farmers with a zero-carbon fertilizer under a decentralized and even farm-level approach. Moreover, if driven by renewables, ammonia offers an effective means of exporting hydrogen from Australia. Hydrogen has been highlighted by the federal government as a priority technology in its Technology Investment Roadmap with ammonia seen as the best approach for its exportation. Read moreRead less
Perfect particles: Accurate breakage predictions by 3D printing of granules. Granule breakage of micro-structured specialty products impedes manufacturing and degrades product performance. Predictive breakage models have had limited success as each granule has a unique structure. Differences between the model predictions and experimental breakage test results could be due to inaccurate models or irreproducible experimental results due to granule structure differences. This project is expected to ....Perfect particles: Accurate breakage predictions by 3D printing of granules. Granule breakage of micro-structured specialty products impedes manufacturing and degrades product performance. Predictive breakage models have had limited success as each granule has a unique structure. Differences between the model predictions and experimental breakage test results could be due to inaccurate models or irreproducible experimental results due to granule structure differences. This project is expected to be the first ever application of three-dimensional printing for reproducible breakage testing. The project aims to: create the first ever multiple identical copies of complex granules using polyjet three-dimensional printing; model and experimentally measure granule breakage; and develop sophisticated Digital Elevation Models of granule breakage for practical use in industry.Read moreRead less