Li Zerong, Wen Guilai, Liang Jie, Li Tingshuai, Luo Yonglan, Kong Qingquan, Shi Xifeng, Asiri Abdullah M, Liu Qian, Sun Xuping
Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, Sichuan, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
Chem Commun (Camb). 2021 Sep 23;57(76):9720-9723. doi: 10.1039/d1cc02612g.
Electrocatalytic eight-electron nitrate (NO) reduction is a sustainable strategy to degrade NO and convert it into high value-added ammonia (NH) but needs efficient catalysts with high activity and selectivity. Our study shows the use of Ti plate supported cobalt-phosphorus alloy film (Co-P/TP) as a highly active and selective electrocatalyst for ambient NO-to-NH conversion. In 0.2 M NaSO with 200 ppm NO, Co-P/TP offers an NH yield rate of 416.0 ± 7.2 μg h cm and a high faradaic efficiency of 93.6 ± 3.3% at -0.6 V and -0.3 V reversible hydrogen electrode, respectively, with good durability. Noticeably, a conversion rate of 86.9% is achieved after 10 h bulk electrolysis.
电催化八电子硝酸盐（NO）还原是一种可持续的策略，用于降解NO并将其转化为高附加值的氨（NH₃），但需要具有高活性和选择性的高效催化剂。我们的研究表明，使用钛板负载的钴磷合金薄膜（Co-P/TP）作为用于环境中NO转化为NH₃的高活性和选择性电催化剂。在含有200 ppm NO的0.2 M Na₂SO₄中，Co-P/TP在相对于可逆氢电极-0.6 V和-0.3 V时，分别提供416.0±7.2 μg h⁻¹ cm⁻²的NH₃产率和93.6±3.3%的高法拉第效率，并且具有良好的耐久性。值得注意的是，在进行10小时的本体电解后，转化率达到了86.9%。
