文献类型：期刊文献

英文题名：Hierarchical Ni-Mo-P nanoarrays toward efficient urea oxidation reaction

作者：Li, Jing[1,2];Hu, Feng[1,2];Hei, Jinpei[1,2];Liu, Guoan[5];Wei, Hui[1,2];Wang, Nannan[1,2];Wei, Hehe[3,4]

机构：[1]Chaohu Univ, Engn Technol Ctr, Dept Educ Anhui Prov, Hefei 238024, Peoples R China;[2]Chaohu Univ, Coll Chem & Mat Engn, Hefei 238024, Peoples R China;[3]East China Univ Sci & Technol, Ctr Computat Chem, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Res Inst Ind Catalysis, 130 Meilong Rd, Shanghai 200237, Peoples R China;[5]Hefei Ecriee Tamura Elect Co Ltd, Hefei 230088, Peoples R China

年份：2022

卷号：51

期号：47

起止页码：18059

外文期刊名：DALTON TRANSACTIONS

收录：;EI(收录号：20224813173197);WOS:【SCI-EXPANDED(收录号:WOS:000885100700001)】；

基金：This work was supported by National Natural Science Foundations of China (22102057, 52102209) and Shanghai Sailing Program (21YF1409400), Key Projects of Natural Science Research in Universities of Anhui Province (KJ2020A0675, KJ2021A1023), Startup Research Fund of Chaohu University (KYQD-202009, KYQD-202004), the Key Research and Development Plan of Anhui Province (No. 202003a05020051). The authors thank Research Center of Analysis and Test of East China University of Science and Technology for the characterizations and Feringa Nobel Prize Scientist Joint Research Center. We also acknowledge the support of Chao Wang from Shiyanjia Lab (https://www.shiyanjia.com).

语种：英文

外文关键词：Anodic oxidation - Catalyst activity - Cost effectiveness - Durability - Electrocatalysis - Electronic structure - Hydrogen production - Metabolism - Nickel compounds - Reaction kinetics

摘要：The urea oxidation reaction (UOR), which possesses a low theoretical potential and superior kinetics, is an attractive substitute for the anodic oxygen evolution reaction (OER) in overall water splitting; however, the implementation of hydrogen production in overall urea splitting is impeded by the deficiency of highly efficient, durable and cost-effective catalysts. Herein, we fabricated an Ni2P-MoP2 heterostructure with a hierarchical structure grown on carbon paper (Ni-Mo-P/CP), which exhibited robust activity and outstanding durability for the electrocatalytic oxidation of urea. The Ni-Mo-P/CP catalyst possessed an ultralow potential of 1.39 V to obtain the current density of 100 mA cm(-2), small Tafel slope (27 mV dec(-1)) and long-term durability with almost no decay within 15 h. The experimental characterization revealed that the optimized electronic structure and the synergistic effect of abundant exposed active sites in the Ni-Mo-P/CP catalyst contribute to the efficient UOR catalytic activity. This work enriches the candidate catalysts for the UOR and promotes the industrial development of hydrogen production.