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...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/141061 |
| _version_ | 1826129118747426816 |
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| author | Zhang, Bowei Yang, Guang Li, Chaojiang Huang, Kang Wu, Junsheng Hao, Shiji Feng, Jianyong Peng, Dongdong Huang, Yizhong |
| 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 |
| author_sort | Zhang, Bowei |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T07:35:30Z |
| format | Journal Article |
| id | ntu-10356/141061 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:35:30Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-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. |
| 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 |
| title | 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_short | 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 |
| topic | Engineering::Materials Zinc Cobalt Sulfide Hydrogen Evolution Reaction |
| url | https://hdl.handle.net/10356/141061 |
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