文献类型：期刊文献

英文题名：Facile Preparation of Porous High-Entropy Alloy Feconicumn and its Oer Performance

作者：Zhao, Chongjun[1]; Cai, Wenlei[1]; Sun, Nan[1]; Chen, Shi[1]; Jing, Wenbin[1]; Zhao, Chunhua[1]

机构：[1] Key Laboratory for Ultrafine Materials, Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230205177)

语种：英文

外文关键词：High-entropy alloys - Iron alloys - Organometallics - Oxygen

摘要：A high-entropy metal-organic framework is synthesized as a precursor by a one-step solvothermal method, followed by thermal reduction in a H2/Ar mixed atmosphere to obtain a face-centered cubic high-entropy alloy (FeCoNiCuMnZn-MOF). Zn, with a low boiling point, is used as a sacrificial template for pores, which is evaporated from the alloy material during thermal reduction to effectively control the pores, and finally forms porous high-entropy alloy nanoparticles (FeCoNiCuMn-NPs). The porous high-entropy alloy material formed at 950°C has the largest electrochemically active surface area (3810 cm2), and exhibits excellent OER performance: At a current density of 10 mA cm-2, the overpotential is 196 mV, and the Tafel slope 55 mV dec-1, and it remains stable after 75h of continuous operation. ? 2023, The Authors. All rights reserved.