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Synthesis and Electrocatalytic Properties of Ni–Fe-Layered Double Hydroxide Nanomaterials

  • Mengxin Miao
  • Xiaobo Han
  • Rulong Jia
  • Wei MaEmail author
  • Guihong HanEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Designing efficient electrocatalysts for oxygen evolution reaction (OER) is very important for renewable energy storage. Layered double hydroxides (LDHs) attract widespread attention because of their excellent performance in electrochemical oxygen evolution. In this paper, the layered catalyst materials with different ratio of Ni and Fe were synthesized by one-pot hydrothermal synthesis technique. It was found that the Ni–Fe-layered double hydroxides with a ratio of 3:1 had a higher catalytic activity for oxygen evolution with an overpotential of 366 mV and a Tafel slope of 38.34 mV dec−1. The Ni–Fe compound with the ratio of 3:1 hold a higher electrical conductivity when the Ni–Fe LDH was calcinated at 600 °C and nitrogen protection conditions, resulting in a higher catalytic activity for oxygen evolution reactions. And its overpotential is 270 mV and the Tafel slope is 32.8 mV dec−1.

Keywords

Layered double hydroxide Electrolyte Oxygen evolution reaction 

Notes

Acknowledgements

The authors acknowledge the financial support provided by the National Science Fund of China (No. 51674225, No. 51774252), the Innovative Talents Foundation in Universities in Henan Province (No. 18HASTIT011), the Educational Commission of Henan Province of China (No. 17A450001, 18A450001), and the China Postdoctoral Science Foundation (No. 2017M622375).

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.School of Chemical Engineering and EnergyZhengzhou UniversityZhengzhouPeople’s Republic of China

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