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

查看全文 作　　者：Chendong [1]Kou;Meiling [2]Qin;Wei [2]Song;Weijun [2]Zhu;Jieshu [1]Zhou;Christopher Dorma Momo [1]Jr;Hongyan [1]Liang

机构地区：[1]School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China;[2]CETC Deqing Huaying Electronics Co.,Ltd.,China

出　　处：《ChemPhysMater》索引2024年第3卷第1期,共7页

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 application.Therefore,considerable attention has been paid to the development of efficient catalysts to accelerate the OER.In 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)O.The catalytic performances of the(FeCoNiMnV)_(x)O catalysts were modified by tuning the reaction temperature.The 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 synthesized.This study provides an efficient approach for the synthesis of high-entropy oxides. 关键词：High-entropy oxides Solvothermal method Oxygen evolution reaction Water splitting

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

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