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Updated: Sep 5, 2025
Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees
Published on: November 29, 2016
3D hierarchical ZnCo2S4@Ni(OH)2 nanowire arrays with excellent flexible energy storage and electrocatalytic
Wen-Duo Yang1, Rong-Da Zhao1, Jun Xiang1
1School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121001, P. R. China.
Abstract:
It is essential for energy storage and conversion systems to construct electrodes and electrocatalysts with superior performance. In this work, ZnCo2S4@Ni(OH)2 nanowire arrays are synthesized on nickel foam by hydrothermal methods. As a supercapacitor electrode, the ZnCo2S4@Ni(OH)2 structure exhibits a specific capacitance of 1,263.0C g-1 at 1 A g-1. The as-fabricated ZnCo2S4@Ni(OH)2//active carbon device can achieve a maximum energy density of 115.4 Wh kg-1 at a power density of 5,400 W kg-1. As electrocatalysts, the ZnCo2S4@Ni(OH)2 structure delivers outstanding performance for oxygen evolution reaction (an overpotential of 256.3 mV at 50 mA cm-2), hydrogen evolution reaction (141.7 mV at 10 mA cm-2), overall water splitting (the cell voltage of 1.53 V at 50 mA cm-2), and a high stability for 13 h.
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