Please use this identifier to cite or link to this item:
Title: NiFe layered double hydroxide nanosheet arrays for efficient oxygen evolution reaction in alkaline media
Authors: Huang, Feng
Yao, Bingqing
Huang, Yizhong
Dong, Zhili
Keywords: Engineering::Materials
Issue Date: 2022
Source: Huang, F., Yao, B., Huang, Y. & Dong, Z. (2022). NiFe layered double hydroxide nanosheet arrays for efficient oxygen evolution reaction in alkaline media. International Journal of Hydrogen Energy, 47(51), 21725-21735.
Journal: International Journal of Hydrogen Energy
Abstract: Exploring efficient oxygen evolution reaction (OER) catalysts synthesized from low-cost and earth-abundant elements are crucial to the progression of water splitting. In this paper, NiFe layered double hydroxide (LDH) nanosheets were grown on Ni foam (NF) through a straightforward hydrothermal method. The Fe doping effects were systematically investigated by controlling Ni/Fe ratios and Fe valence states, and the in-depth influence mechanisms were discussed. The results indicate that, through controlling structure morphology and enhancing Ni2+ oxidation, NiFeIII(1:1)-LDH displays the best and outstanding OER performance, with a low over potential of 382 mV at 50 mA cm−2, a low Tafel slope of 31.1 mVdec−1 and only 20 mV increase after 10 h continuous test at 50 mA cm−2. To our knowledge, this is one of the best OER electrocatalysts in alkaline media to date. This work provides a facile and novel strategy for the fabrication of bimetallic LDH catalysts with desired structures and compositions.
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.04.296
Rights: © 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

Citations 50

Updated on Nov 21, 2022

Web of ScienceTM
Citations 50

Updated on Nov 17, 2022

Page view(s)

Updated on Nov 25, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.