Thu Sep 19 09:00:01 UTC 2024: ## New Liquid Metal Catalyst Could Revolutionize Ammonia Production, Cutting Carbon Emissions
**Melbourne, Australia** – A groundbreaking new method for producing ammonia, utilizing the unique properties of liquid metal catalysts, promises to drastically reduce carbon emissions associated with this widely used chemical.
Ammonia is a crucial ingredient in fertilizers, essential for feeding a growing global population, and is also emerging as a key player in the clean energy sector as a safe hydrogen carrier. However, current production methods, like the century-old Haber-Bosch process, are energy-intensive and contribute significantly to greenhouse gas emissions.
Researchers at RMIT University have developed a more efficient and environmentally friendly approach, utilizing tiny liquid metal droplets containing copper and gallium as catalysts. These “nano planets,” with their hard crust, liquid outer core, and solid inner core structure, enable the splitting of nitrogen and hydrogen into ammonia with remarkably less energy and pressure.
The new process uses 20% less heat and 98% less pressure than the Haber-Bosch method while achieving similar levels of ammonia production. Furthermore, the copper and gallium catalysts are significantly cheaper and more abundant than the precious metal ruthenium currently used, making this approach economically viable.
“Liquid metals allow us to move the chemical elements around in a more dynamic way, which makes reactions more efficient,” explained Professor Torben Daeneke, a leading researcher at RMIT. “We found a synergy between copper and gallium, which individually were poor catalysts, but together they work exceptionally well.”
This new technology offers several advantages, including the potential for both large-scale and smaller, decentralized production, making it suitable for diverse applications, such as solar farms. It could also be a game-changer for the hydrogen industry by enabling the production of green ammonia, effectively mitigating emissions associated with hydrogen transportation.
“Our vision is to combine our green ammonia production technology with hydrogen technologies, allowing green energy to be shipped safely around the world without huge losses on the way,” said Professor Daeneke.
The team is currently working to upscale the technology from laboratory conditions and further optimize it for even lower pressures, making it a practical tool for a wider range of industries.
This innovative research holds immense potential to dramatically reduce carbon emissions and contribute to a more sustainable future.
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