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The performance and cost of oxygen reduction catalysts have long been key challenges in the development of new energy technologies. Researchers in the field of fuel cells have always aimed to develop high-performance, non-metallic oxygen reduction catalysts. Currently, most carbon-based catalysts rely on expensive materials like graphene or carbon nanotubes, but their catalytic efficiency still lags behind that of commercial platinum-based catalysts. This has made the search for low-cost, efficient non-metal catalysts a major focus in the industry.
Recently, supported by the National Natural Science Foundation of China, the Ministry of Science and Technology, and the Chinese Academy of Sciences, a research team led by Xu Weilin from the Changchun Institute of Applied Chemistry, along with Xing Xing, developed a series of high-performance oxygen reduction catalysts using affordable carbon blacks. Their findings were published in *ACS Catalysis*.
The team created a simple and cost-effective oxygen reduction catalyst by doping common carbon black with fluorine. This catalyst outperforms existing alkaline catalysts in terms of activity, stability, resistance to poisoning, and longevity. It achieves an oxygen reduction onset potential 30 mV higher than commercial platinum/carbon catalysts, making it one of the best-performing non-platinum catalysts in alkaline systems. When used in an alkaline methanol fuel cell, this material demonstrated superior performance compared to traditional platinum-based catalysts.
This breakthrough represents a significant step toward replacing costly platinum-based catalysts with more sustainable and economical alternatives. The team has already filed patents for the related technology, signaling promising future applications in the clean energy sector.
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