Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions
The hydrogen evolution reaction (HER) is a half-cell reaction in water electrolysis for producing hydrogen gas. In industrial water electrolysis, the HER is often conducted in alkaline media to achieve higher stability of the electrode materials. However, the kinetics of the HER in alkaline medium i...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2019
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| Online Access: | https://hdl.handle.net/10356/105485 http://hdl.handle.net/10220/47807 |
| _version_ | 1826118934943760384 |
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| author | Wei, Jumeng Zhou, Min Long, Anchun Xue, Yanming Liao, Hanbin Wei, Chao Xu, Jason Zhichuan |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Wei, Jumeng Zhou, Min Long, Anchun Xue, Yanming Liao, Hanbin Wei, Chao Xu, Jason Zhichuan |
| author_sort | Wei, Jumeng |
| collection | NTU |
| description | The hydrogen evolution reaction (HER) is a half-cell reaction in water electrolysis for producing hydrogen gas. In industrial water electrolysis, the HER is often conducted in alkaline media to achieve higher stability of the electrode materials. However, the kinetics of the HER in alkaline medium is slow relative to that in acid because of the low concentration of protons in the former. Under the latter conditions, the entire HER process will require additional effort to obtain protons by water dissociation near or on the catalyst surface. Heterostructured catalysts, with fascinating synergistic effects derived from their heterogeneous interfaces, can provide multiple functional sites for the overall reaction process. At present, the activity of the most active known heterostructured catalysts surpasses (platinum-based heterostructures) or approaches (noble-metal-free heterostructures) that of the commercial Pt/C catalyst under alkaline conditions, demonstrating an infusive potential to break through the bottlenecks. This review summarizes the most representative and recent heterostructured HER catalysts for alkaline medium. The basics and principles of the HER under alkaline conditions are first introduced, followed by a discussion of the latest advances in heterostructured catalysts with/without noble-metal-based heterostructures. Special focus is placed on approaches for enhancing the reaction rate by accelerating the Volmer step. This review aims to provide an overview of the current developments in alkaline HER catalysts, as well as the design principles for the future development of heterostructured nano- or micro-sized electrocatalysts. |
| first_indexed | 2024-10-01T04:51:41Z |
| format | Journal Article |
| id | ntu-10356/105485 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:51:41Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1054852023-07-14T15:55:13Z Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions Wei, Jumeng Zhou, Min Long, Anchun Xue, Yanming Liao, Hanbin Wei, Chao Xu, Jason Zhichuan School of Materials Science & Engineering Hydrogen Production DRNTU::Engineering::Materials Hybrid Catalyst The hydrogen evolution reaction (HER) is a half-cell reaction in water electrolysis for producing hydrogen gas. In industrial water electrolysis, the HER is often conducted in alkaline media to achieve higher stability of the electrode materials. However, the kinetics of the HER in alkaline medium is slow relative to that in acid because of the low concentration of protons in the former. Under the latter conditions, the entire HER process will require additional effort to obtain protons by water dissociation near or on the catalyst surface. Heterostructured catalysts, with fascinating synergistic effects derived from their heterogeneous interfaces, can provide multiple functional sites for the overall reaction process. At present, the activity of the most active known heterostructured catalysts surpasses (platinum-based heterostructures) or approaches (noble-metal-free heterostructures) that of the commercial Pt/C catalyst under alkaline conditions, demonstrating an infusive potential to break through the bottlenecks. This review summarizes the most representative and recent heterostructured HER catalysts for alkaline medium. The basics and principles of the HER under alkaline conditions are first introduced, followed by a discussion of the latest advances in heterostructured catalysts with/without noble-metal-based heterostructures. Special focus is placed on approaches for enhancing the reaction rate by accelerating the Volmer step. This review aims to provide an overview of the current developments in alkaline HER catalysts, as well as the design principles for the future development of heterostructured nano- or micro-sized electrocatalysts. Published version 2019-03-13T09:18:00Z 2019-12-06T21:52:14Z 2019-03-13T09:18:00Z 2019-12-06T21:52:14Z 2018 Journal Article Wei, J., Zhou, M., Long, A., Xue, Y., Liao, H., Wei, C., & Xu, J. Z. (2018). Heterostructured Electrocatalysts for Hydrogen Evolution Reaction Under Alkaline Conditions. Nano-Micro Letters, 10(4), 75-. doi:10.1007/s40820-018-0229-x 2311-6706 https://hdl.handle.net/10356/105485 http://hdl.handle.net/10220/47807 10.1007/s40820-018-0229-x en Nano-Micro Letters © 2018 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 15 p. application/pdf |
| spellingShingle | Hydrogen Production DRNTU::Engineering::Materials Hybrid Catalyst Wei, Jumeng Zhou, Min Long, Anchun Xue, Yanming Liao, Hanbin Wei, Chao Xu, Jason Zhichuan Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title | Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title_full | Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title_fullStr | Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title_full_unstemmed | Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title_short | Heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| title_sort | heterostructured electrocatalysts for hydrogen evolution reaction under alkaline conditions |
| topic | Hydrogen Production DRNTU::Engineering::Materials Hybrid Catalyst |
| url | https://hdl.handle.net/10356/105485 http://hdl.handle.net/10220/47807 |
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