Wang Aijian, Dou Yuqin, Yang Xin, Wang Qi, Sudi M Shire, Zhao Long, Shang Danhong, Zhu Weihua, Ren Jinshen
School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
Dalton Trans. 2023 Aug 15;52(32):11234-11242. doi: 10.1039/d3dt01295f.
Integrating various active sites into a multi-component system might significantly enhance the oxygen evolution reaction (OER) performance. Herein, the as-prepared iron-molybdenum nitride/molybdenum oxide (Fe-MoN/MoO-550) composite electrocatalyst under optimum conditions demonstrates excellent electrocatalytic performance toward OER and reaches current densities of 10 and 20 mA cm at overpotentials of 201 and 216 mV, respectively. The OER performance of Fe-MoN/MoO-550 exceeds that of most previously reported electrocatalytic systems. The significant improvement in the OER performance is ascribed to a combination of mechanisms. The strong electronic interactions among the Fe, MoN and MoO species can accelerate the OER reaction kinetics, which contributes to the OER performance. This work provides new insights into the construction of efficient electrocatalytic materials with inexpensive metals.
将各种活性位点整合到多组分体系中可能会显著提高析氧反应（OER）性能。在此，所制备的铁钼氮化物/氧化钼（Fe-MoN/MoO-550）复合电催化剂在最佳条件下对OER表现出优异的电催化性能，在过电位分别为201和216 mV时，电流密度达到10和20 mA cm。Fe-MoN/MoO-550的OER性能超过了大多数先前报道的电催化体系。OER性能的显著提高归因于多种机制的结合。Fe、MoN和MoO物种之间强烈的电子相互作用可以加速OER反应动力学，这有助于提高OER性能。这项工作为用廉价金属构建高效电催化材料提供了新的见解。
