Zhang Ailin, Liang Yimei, He Xun, Fan Xiaoya, Yang Congling, Ouyang Ling, Zheng Dongdong, Sun Shengjun, Cai Zhengwei, Luo Yonglan, Liu Qian, Alfaifi Sulaiman, Cai Li, Wang Huiqing, Sun Xuping
College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, Sichuan, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
Inorg Chem. 2023 Aug 14;62(32):12644-12649. doi: 10.1021/acs.inorgchem.3c02422. Epub 2023 Aug 3.
Electrochemical nitrite (NO) reduction is recognized as a promising strategy for synthesizing valuable ammonia (NH) and degrading NO pollutants in wastewater. The six-electron process for the NO reduction reaction is complex and necessitates a highly selective and stable electrocatalyst for efficient conversion of NO to NH. Herein, a FeP nanoparticle-decorated TiO nanoribbon array on a titanium plate (FeP@TiO/TP) is proposed as an efficient catalyst for NH production under ambient conditions. In 0.1 M NaOH with 0.1 M NO, such a FeP@TiO/TP affords a large NH yield of 346.6 μmol h cm and a high Faradaic efficiency of 97.1%. Additionally, it demonstrates excellent stability and durability during long-term cycling tests and electrolysis experiments.
电化学亚硝酸盐（NO）还原被认为是一种有前景的策略，可用于合成有价值的氨（NH₃）以及降解废水中的NO污染物。NO还原反应的六电子过程较为复杂，需要一种高选择性且稳定的电催化剂，以实现NO高效转化为NH₃。在此，提出了一种在钛板上修饰有FeP纳米颗粒的TiO₂纳米带阵列（FeP@TiO₂/TP），作为在环境条件下生产NH₃的高效催化剂。在含有0.1 M NO的0.1 M NaOH溶液中，这种FeP@TiO₂/TP可实现346.6 μmol h⁻¹ cm⁻²的高NH₃产率以及97.1%的高法拉第效率。此外，在长期循环测试和电解实验中，它表现出优异的稳定性和耐久性。
