High-index faceted binary-metal selenide nanosheet arrays as efficient 3D electrodes for alkaline hydrogen evolution
Yang J, Lei C, Wang H, Yang B, Li Z, Qiu M, Zhuang X, Yuan C, Lei L, Hou Y, Feng X (2019)
Publication Type: Journal article, Review article
Publication year: 2019
Journal
Book Volume: 11
Pages Range: 17571-17578
Journal Issue: 38
DOI: 10.1039/c9nr06976c
Abstract
Exploring highly active and durable Earth-abundant electrocatalysts to replace the precious noble metals holds great promise for the hydrogen evolution reaction (HER) from water splitting. Herein, a novel (110) high-index faceted binary-metal selenide (FeNiSe) nanosheet array grown on electrochemically exfoliated graphene foil (FeNiSe-NS/EG) is developed from its vertically-oriented NiFe-LDH nanosheet/EG precursor through a low-temperature selenization reaction. Benefiting from its unique 3D configuration and enhanced electrical conductivity, the obtained FeNiSe-NS/EG electrode exhibits excellent electrocatalytic activity toward the HER with small overpotentials of-187 and-222 mV at current densities of 10 and 20 mA cm-2, a low Tafel slope of 65 mV dec-1, and remarkable long term stability in alkaline media, outperforming the recently reported NiFe-based non-precious metal HER catalysts. Theoretical calculations and experimental results reveal that the synergistic effects of the exposed (110) high-index facets and Fe dopants give rise to a greatly enhanced HER performance.
Involved external institutions
Zhejiang University
China (CN)
Central China Normal University (CCNU) / Huazhong Normal University / 华中师范大学
China (CN)
Technische Universität Dresden
Germany (DE)
Case Western Reserve University
United States (USA) (US)
China (CN)
Central China Normal University (CCNU) / Huazhong Normal University / 华中师范大学
China (CN)
Technische Universität Dresden
Germany (DE)
Case Western Reserve University
United States (USA) (US)
How to cite
APA:
Yang, J., Lei, C., Wang, H., Yang, B., Li, Z., Qiu, M.,... Feng, X. (2019). High-index faceted binary-metal selenide nanosheet arrays as efficient 3D electrodes for alkaline hydrogen evolution. Nanoscale, 11(38), 17571-17578. https://doi.org/10.1039/c9nr06976c
MLA:
Yang, Jian, et al. "High-index faceted binary-metal selenide nanosheet arrays as efficient 3D electrodes for alkaline hydrogen evolution." Nanoscale 11.38 (2019): 17571-17578.
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