Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/161950
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. https://dx.doi.org/10.1016/j.ijhydene.2022.04.296
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.
URI: https://hdl.handle.net/10356/161950
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

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