(Co,Ni,Mn,Cu,Zn)O High-Entropy Oxide Nanotubes as Efficient Bifunctional Electrocatalyst for Oxygen Evolution and Hydrazine Oxidation ReactionsOA
High-entropy oxides(HEOs)present significant scientific challenges in both design and synthesis due to their multielement and high-entropy nature,which involves complex combinations of multiple metal cations and oxygen anions,typically arranged in equimolar ratios to achieve structural stability.Herein,one-dimensional(Co,Ni,Mn,Cu,Zn)O high-entropy oxide nanotubes(HEO-NTs)are fabricated by means of a gradient electrospinning strategy with a tailored polyvinyl alcohol(PVA)molecular weight distribution and controlled pyrolysis.Benefiting from the HEO features and the synergistic effect of multicomponent sites,the as-synthesized(Co,Ni,Mn,Cu,Zn)O HEO-NTs exhibit exceptional bifunctional electrocatalytic activity for the oxygen evolution and hydrazine oxidation reactions(OER/HzOR).This study offers new insight into the design of HEO-NTs and unveiling the multicomponent synergy on HEOs for enhanced electrocatalytic activities of OER and HzOR.
Pan-Yan Chen;Wan-Wan Wu;Heng Bian;Wei-Wei Li;Xin-Sheng Zhao;Lu Wei
School of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,ChinaSchool of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,ChinaSchool of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,ChinaSchool of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,ChinaSchool of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,ChinaSchool of Physics and Electronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,China
化学化工
High-entropy oxidesNanotubesElectrocatalystsOxygen evolution reactionHydrazine oxidation reaction
《电化学(中英文)》 2026 (5)
P.14-23,10
supported by the National Natural Science Foundation of China(21703088)athe Xuzhou“343”Industrial Development Project(gx2025008).
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