文献类型：期刊文献

英文题名：Hierarchical Ni-Mo-P Nanoarrays Grown on Carbon Paper Toward Highly Efficient Urea Oxidation Reaction

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

机构：[1] Engineering Technology Center, Department of Education of Anhui Province, College of Chemistry and Materials Engineering, Chaohu University, Hefei, 238024, China; [2] Key Laboratory for Advanced Materials, Center for Computational Chemistry, Research Institute of Industrial Catalysis, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [3] Hefei Ecriee-Tamura Electric Co., Ltd, Hefei, 230088, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220309997)

语种：英文

外文关键词：Carbon - Catalyst activity - Durability - Electronic structure - Energy conservation - Hydrogen production - Metabolism - Molybdenum compounds - Nickel compounds - Oxidation - Paper - Phosphorus compounds - Reaction kinetics

摘要：Combining hydrogen evolution reaction(HER) with urea oxidation reaction(UOR) that possesseslow theoretical potential and superior kinetics has been considered asan effective approachto achieve cost-efficient energy-saving hydrogen generation. However, developing high-efficient and long-term durability catalysts for UOR still remains challenging. Herein, the Ni 2 P-MoP 2 heterostructure with hierarchical structure supported by carbon paper is constructed (Ni-Mo-P/CP) via a hydrothermal method and subsequently phosphorization method. With the assistance of urea, the applied oxidation potential of Ni-Mo-P/CP decreases greatly than oxygen evolution reaction(OER). It displays superior catalytic performance for UOR with a low potential of 1.39 V to obtain the current density of 100 mA cm -2 ,accompanied with minimum Tafel slope (27 mV dec -1 ) and long-term durability(15h, almost no decay). Experiment characterizations reveal that the abundant active sites and excellent structure stability of the hierarchical structure, as well as the redistribution of electronic structure and the synergistic effect of the Ni-Mo-P system, contribute to efficientUOR catalytic activity. This work enriches the candidate catalysts for UOR and promotes the development of water splitting. ? 2022, The Authors. All rights reserved.