Issue

Vol. 12 (2020)

Mesoporous Ternary Nitrides of Earth-Abundant Metals as Oxygen Evolution Electrocatalyst

https://doi.org/10.1007/s40820-020-0412-8
Ali Saad
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, People’s Republic of China
Hangjia Shen
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, People’s Republic of China
Zhixing Cheng
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, People’s Republic of China
Ramis Arbi
Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
Beibei Guo
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China
Lok Shu Hui
Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
Kunyu Liang
Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
Siqi Liu
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, People’s Republic of China
John Paul Attfield
Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, University of Edinburgh, Kings Buildings, West Mains Road, Edinburgh EH9 3JJ, UK
Ayse Turak
Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
Jiacheng Wang
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Minghui Yang
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, People’s Republic of China

Corresponding Author: Minghui Yang

myang@nimte.ac.cn

Nano-Micro Letters, Vol. 12 (2020), Article Number: 79

Abstract

As sustainable energy becomes a major concern for modern society, renewable and clean energy systems need highly active, stable, and low-cost catalysts for the oxygen evolution reaction (OER). Mesoporous materials offer an attractive route for generating efficient electrocatalysts with high mass transport capabilities. Herein, we report an efficient hard templating pathway to design and synthesize three-dimensional (3-D) mesoporous ternary nickel iron nitride (Ni3FeN). The as-synthesized electrocatalyst shows good OER performance in an alkaline solution with low overpotential (259 mV) and a small Tafel slope (54 mV dec−1), giving superior performance to IrO2 and RuO2 catalysts. The highly active contact area, the hierarchical porosity, and the synergistic effect of bimetal atoms contributed to the improved electrocatalytic performance toward OER. In a practical rechargeable Zn–air battery, mesoporous Ni3FeN is also shown to deliver a lower charging voltage and longer lifetime than RuO2. This work opens up a new promising approach to synthesize active OER electrocatalysts for energy-related devices.


Highlights:


1 3D mesoporous Ni3FeN was constructed through hard templating and thermal nitridation.
2 Ni3FeN exhibits superior electrochemical performance for OER with a small overpotential of 259 mV to achieve a 10 mA cm−2.
3 Ni3FeN can also deliver a lower charging voltage and longer lifetime than RuO2 in a rechargeable Zn–air battery.

Keywords

Ordered mesoporous structure Hard template Ni3FeN Oxygen evolution reaction Zn–air battery
Saad, Ali, Hangjia Shen, Zhixing Cheng, Ramis Arbi, Beibei Guo, Lok Shu Hui, Kunyu Liang, Siqi Liu, John Paul Attfield, Ayse Turak, Jiacheng Wang, and Minghui Yang. 2020. “Mesoporous Ternary Nitrides of Earth-Abundant Metals As Oxygen Evolution Electrocatalyst”. Nano-Micro Letters 12 (March):79. https://doi.org/10.1007/s40820-020-0412-8.
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