@article{Chen2026, 
author = {Pan-Yan Chen and Wan-Wan Wu and Heng Bian and Wei-Wei Li and Xin-Sheng Zhao and Lu Wei},
title = {(Co,Ni,Mn,Cu,Zn)O High-Entropy Oxide Nanotubes as Efficient Bifunctional Electrocatalyst for Oxygen Evolution and Hydrazine Oxidation Reactions},
year = {2026},
journal = {Journal of Electrochemistry},
volume = {32},
number = {5},
keywords = {High-entropy oxides, Nanotubes, Electrocatalysts, Oxygen evolution reaction, Hydrazine oxidation reaction},
url = {https://www.sciopen.com/article/10.61558/2993-074X.3608},
doi = {10.61558/2993-074X.3608},
abstract = {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.}
}