Self-supported NiMo hollow nanorod array: an efficient 3D bifunctional catalytic electrode for overall water splitting†
Abstract
Large-scale industrial application of electrochemical water splitting calls for remarkable non-noble metal electrocatalysts. Herein, we report on the synthesis of a NiMo-alloy hollow nanorod array supported on Ti mesh (NiMo HNRs/TiM) using a template-assisted electrodeposition method. The NiMo HNRs/TiM behaves as a durable efficient oxygen evolution anode with 10 mA cmâ2 at an overpotential of 310 mV in 1.0 M KOH. Coupled with its superior catalytic performance for hydrogen evolution with 10 mA cmâ2 at an overpotential of 92 mV, we made an alkaline electrolyzer using this bifunctional electrode with 10 mA cmâ2 at a cell voltage of 1.64 V.
- This article is part of the themed collection: 2015 Journal of Materials Chemistry A Hot Papers