en.Wedoany.com Reported - Researchers at McMaster University in Ontario, Canada, have developed an electrochemical method to produce ammonia from nitrate, offering a potential pathway for low-carbon fertilizer production while converting a common water pollutant into a chemical feedstock.
The study, published in the Journal of the American Chemical Society, evaluated four versions of iron-based catalysts for electrochemical nitrate reduction. The research team used X-ray absorption spectroscopy at the Canadian Light Source, University of Saskatchewan, to analyze how catalyst properties affect ammonia production efficiency.
The study found that the highest-performing catalyst increased ammonia yield by enabling more effective contact between nitrate and water at active catalytic sites. Initial research focused on optimizing the electronic properties of the catalyst, but the team discovered that surface characteristics also play a key role in reaction performance.
McMaster University researcher Navid Noor stated in a press release that deeper investigation revealed the catalyst's surface properties were at play, and researchers needed to find a material that could supply both more electrons and more water to the catalyst.
The research team used X-ray absorption spectroscopy to gain deeper insights into catalyst behavior during the nitrate conversion process. Noor said the technique provided insights into the relationship between catalyst structure and performance, helping to guide the research.
The researchers stated that the next phase will focus on testing the catalyst system under industrially relevant operating conditions to assess its commercial potential.
Noor said this will provide a benchmark for starting sustainable ammonia production using electrochemical technology.
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