Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction

Structure and phase modulations allow the development of highly active, cost-effective and stable electrocatalysts for the hydrogen evolution reaction (HER) but are rather challenging. In this paper, Zn–Co–S hollow/porous polyhedra with controllable phases were fabricated via solvent-based sulfidati...

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Main Authors: Zhang, Bowei, Yang, Guang, Li, Chaojiang, Huang, Kang, Wu, Junsheng, Hao, Shiji, Feng, Jianyong, Peng, Dongdong, Huang, Yizhong
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/141061
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1410612020-06-03T09:26:45Z Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction Zhang, Bowei Yang, Guang Li, Chaojiang Huang, Kang Wu, Junsheng Hao, Shiji Feng, Jianyong Peng, Dongdong Huang, Yizhong School of Materials Science and Engineering Interdisciplinary Graduate School (IGS) Engineering::Materials Zinc Cobalt Sulfide Hydrogen Evolution Reaction Structure and phase modulations allow the development of highly active, cost-effective and stable electrocatalysts for the hydrogen evolution reaction (HER) but are rather challenging. In this paper, Zn–Co–S hollow/porous polyhedra with controllable phases were fabricated via solvent-based sulfidation at room temperature followed by thermal annealing. The obtained hollow structure Zn–Co–S-300 with an amorphous phase exhibits excellent electrocatalytic HER activity, which is higher than crystalline Zn–Co sulfides annealed at a higher temperature. Zn–Co–S-300 also shows a long-term working stability (91.7% current density retention over 10 hours) in alkaline media. This work provides a feasible approach for the fabrication of homogeneous ternary transition metal sulfide (TMS) electrocatalysts via the Kirkendall effect towards high-efficiency HER applications. MOE (Min. of Education, S’pore) 2020-06-03T09:26:45Z 2020-06-03T09:26:45Z 2017 Journal Article Zhang, B., Yang, G., Li, C., Huang, K., Wu, J., Hao, S., . . . Huang, Y. (2018). Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction. Nanoscale, 10(4), 1774-1778. doi:10.1039/c7nr08097b 2040-3364 https://hdl.handle.net/10356/141061 10.1039/c7nr08097b 29308819 2-s2.0-85041212635 4 10 1774 1778 en Nanoscale © 2018 The Royal Society of Chemistry. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Materials
Zinc Cobalt Sulfide
Hydrogen Evolution Reaction
spellingShingle Engineering::Materials
Zinc Cobalt Sulfide
Hydrogen Evolution Reaction
Zhang, Bowei
Yang, Guang
Li, Chaojiang
Huang, Kang
Wu, Junsheng
Hao, Shiji
Feng, Jianyong
Peng, Dongdong
Huang, Yizhong
Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
description Structure and phase modulations allow the development of highly active, cost-effective and stable electrocatalysts for the hydrogen evolution reaction (HER) but are rather challenging. In this paper, Zn–Co–S hollow/porous polyhedra with controllable phases were fabricated via solvent-based sulfidation at room temperature followed by thermal annealing. The obtained hollow structure Zn–Co–S-300 with an amorphous phase exhibits excellent electrocatalytic HER activity, which is higher than crystalline Zn–Co sulfides annealed at a higher temperature. Zn–Co–S-300 also shows a long-term working stability (91.7% current density retention over 10 hours) in alkaline media. This work provides a feasible approach for the fabrication of homogeneous ternary transition metal sulfide (TMS) electrocatalysts via the Kirkendall effect towards high-efficiency HER applications.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Zhang, Bowei
Yang, Guang
Li, Chaojiang
Huang, Kang
Wu, Junsheng
Hao, Shiji
Feng, Jianyong
Peng, Dongdong
Huang, Yizhong
format Article
author Zhang, Bowei
Yang, Guang
Li, Chaojiang
Huang, Kang
Wu, Junsheng
Hao, Shiji
Feng, Jianyong
Peng, Dongdong
Huang, Yizhong
author_sort Zhang, Bowei
title Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
title_short Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
title_full Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
title_fullStr Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
title_full_unstemmed Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
title_sort phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction
publishDate 2020
url https://hdl.handle.net/10356/141061
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