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Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance†

Yan-Yan Dong,‡ab   Dong-Dong Ma,‡a   Xin-Tao Wu ORCID logo a  and  Qi-Long Zhu ORCID logo *a  
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* Corresponding authors

a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter (FJIRSM), Chinese Academy of Sciences (CAS), Fuzhou 350002, China
E-mail: qlzhu@fjirsm.ac.cn

b University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

Developing earth-abundant, highly active, and durable electrocatalysts for the oxygen evolution reaction (OER) is of crucial importance for renewable energy conversion processes. Herein, we fabricated novel flower-like NiFe-layered double hydroxide nanostructures with electron-withdrawing anion intercalation and surface sulfurization via a two-step hydrothermal treatment. Benefiting from the dual-modified electronic structure of the surface active sites of NiFe-LDHs, the as-obtained catalyst showed excellent electrocatalytic activity for the OER, only demanding a low overpotential of 259 mV to achieve 10 mA cm−2 in 1.0 M KOH.

Graphical abstract: Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance

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Publication details

The article was received on 21 Oct 2019, accepted on 16 Nov 2019 and first published on 18 Nov 2019


Article type: Research Article
DOI: 10.1039/C9QI01367A
Inorg. Chem. Front., 2020, Advance Article

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    Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance

    Y. Dong, D. Ma, X. Wu and Q. Zhu, Inorg. Chem. Front., 2020, Advance Article , DOI: 10.1039/C9QI01367A

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