以泡沫镍为基底、磷酸镍为镍源、次亚磷酸钠为磷源,通过变电位沉积法制备了Ni-P/NF电极。在0.1 mol/L KOH水溶液中,考察了该电极对催化甲氧基苄胺氧化脱氢制备对甲氧基苯甲腈的影响。结果表明,该氧化脱氢反应的转换率约为96%,法拉第效率约为98%。开路电压测试和原位拉曼研究表明,该电极催化对甲氧基苄胺氧化脱氢的活性中间体是Ni³⁺OOH。

Ni-P/NF electrode is prepared by potentiodynamic deposition method with nickel foam as substrate,nickel phosphate as nickel source,and sodium hypophosphite as phosphorus source.In 0.1 mol·L^-1 KOH aqueous solution,p-methoxybenzylamine is oxidized to p-methoxybenzonitrile through potentiostatic electrolysis over Ni-P/NF electrode.A conversion of 96% and Faraday efficiency of approximately 98% are obtained during the dehydrogenation process.Open-circuit potential versus time experiment and in situ Raman spectroscopy suggest that Ni³⁺OOH is the active intermediate during the oxygenation of p-methoxybenzylamine.

杨晨艺(1995-),女,硕士研究生,研究方向为电催化有机底物合成,ycyyy95@163.com