Issue 21, 2020

Ultrathin sulfate-intercalated NiFe-layered double hydroxide nanosheets for efficient electrocatalytic oxygen evolution

Abstract

As an important two-dimensional material, layered double hydroxides (LDHs) show considerable potential in electrocatalytic reactions. However, the great thickness of the bulk LDH materials significantly limits their catalytic activity. In this work, we report ultrathin NiFe-LDH nanosheets with sulfate interlayer anions (Ni6Fe2(SO4)(OH)16·7H2O) (U-LDH(SO42−)), which can be synthesized in gram-scale by a simple solvothermal method. The U-LDH(SO42−) shows excellent stability and great electrocatalytic performance in OER with a current density of 10 mA cm−2 at a low overpotential of 212 mV and a small Tafel slope of 65.2 mV dec−1, exhibiting its great potential for a highly efficient OER electrocatalyst.

Graphical abstract: Ultrathin sulfate-intercalated NiFe-layered double hydroxide nanosheets for efficient electrocatalytic oxygen evolution

Supplementary files

Article information

Article type
Paper
Submitted
28 1 2020
Accepted
19 3 2020
First published
25 3 2020
This article is Open Access
Creative Commons BY license

RSC Adv., 2020,10, 12145-12150

Ultrathin sulfate-intercalated NiFe-layered double hydroxide nanosheets for efficient electrocatalytic oxygen evolution

X. Jiang, J. Xue, Z. Zhao, C. Li, F. Li, C. Cao, Z. Niu, H. Gu and J. Lang, RSC Adv., 2020, 10, 12145 DOI: 10.1039/D0RA00845A

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