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Templated Synthesis of Nickel−Iron Layered Double Hydroxide for Enhanced Electrocatalytic Water Oxidation: Towards the Development of Non‐Precious‐Metal Catalysts
Author(s) -
Yadav Dharmendra Kumar,
Ganesan Vellaichamy,
Sonkar Piyush Kumar,
Gupta Rupali
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201700867
Subject(s) - hydroxide , nickel , catalysis , layered double hydroxides , x ray photoelectron spectroscopy , oxygen evolution , materials science , inorganic chemistry , scanning electron microscope , fourier transform infrared spectroscopy , transmission electron microscopy , electrocatalyst , metal , chemical engineering , chemistry , nanotechnology , electrochemistry , metallurgy , organic chemistry , electrode , composite material , engineering
Layered double hydroxides (LDHs) have recently attracted intense research attention because of their applications in the development of highly active and cost‐effective electrocatalysts for the oxygen evolution reaction and in the fields of drug delivery, energy storage, for example. In this work, we report a cheap and simple route for the synthesis of nickel–iron LDH (Ni−Fe LDH) using an iron‐based metal−organic framework, Fe‐MIL‐88 as a template. The prepared Ni−Fe LDH is characterized by scanning electron microscopy, transmission electron microscopy, X‐ray photoelectron spectroscopy, Fourier‐transform infrared spectroscopy and X‐ray diffraction techniques. Ni−Fe LDH is found to be highly active and stable for water oxidation in alkaline solution as compared to commercial Pt/C. The concept of using a metal−organic framework as a structure‐directing agent to synthesize Ni−Fe LDH and the use of the material for the oxygen evolution reaction is explored for the first time.