High-entropy oxide,(FeCoNiMnV)_(x)O,boost the oxygen evolution

作     者：Chendong Kou Meiling Qin Wei Song Weijun Zhu Jieshu Zhou Christopher Dorma Momo Jr Hongyan Liang Chendong Kou;Meiling Qin;Wei Song;Weijun Zhu;Jieshu Zhou;Christopher Dorma Momo Jr;Hongyan Liang

作者机构：School of Materials Science and EngineeringTianjin UniversityTianjin 300350China CETC Deqing Huaying Electronics Co.Ltd.China 

出 版 物：《ChemPhysMater》 (化学物理材料（英文）)

年 卷 期：2024年第3卷第1期

页      面：111-117页

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

主　　题：High-entropy oxides Solvothermal method Oxygen evolution reaction Water splitting 

摘      要：The sluggish kinetics of the oxygen evolution reaction(OER),an essential half-reaction of water splitting,lead to high OER overpotential and low energy-conversion efficiency,hampering its industrial ***,considerable attention has been paid to the development of efficient catalysts to accelerate the *** this study,we synthesized the high-entropy oxides[(FeCoNiMnV)_(x)O]and used them as efficient OER catalysts.A simple oil-phase method was used to synthesize(FeCoNiMnV)_(x)*** catalytic performances of the(FeCoNiMnV)_(x)O catalysts were modified by tuning the reaction *** optimized(FeCoNiMnV)_(x)O catalyst exhibited multiple elemental interactions and abundant exposed active sites,leading to an overpotential of approximately 264 mV to reach a current density of 10 mA cm^(-2) in 1 M KOH and stability of 50 h at 1000 mA cm^(-2).Thus,a highly active OER catalyst was *** study provides an efficient approach for the synthesis of high-entropy oxides.