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Updated: Feb 11, 2026

Preparation of Carbon Nanosheets at Room Temperature
Published on: March 8, 2016
Ultra-thin wrinkled NiOOH-NiCr2O4 nanosheets on Ni foam: an advanced catalytic electrode for oxygen evolution
Jinxiu Zhao1, Xiang Ren, Qingzhi Han
1Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China. wudan791108@163.com.
Abstract:
Here, we report the in situ electrochemical conversion of NiCr2O4 on Ni foam prepared using a hydrothermal strategy to give ultra-thin wrinkled NiOOH-NiCr2O4 amorphous-crystalline nanosheets on Ni foam (NiOOH-NiCr2O4/NF) via anode oxidation in 1.0 M KOH. Owing to the coordination of NiCr2O4 and NiOOH, NiOOH-NiCr2O4/NF shows superior catalytic activity toward the oxygen evolution reaction (OER) with the demand of overpotential as low as 271 mV to drive a geometrical current density of 20 mA cm-2 under alkaline conditions. Notably, it also displays strong long-term electrochemical durability for at least 30 h.
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