Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media
© 2017 American Chemical Society. Electrochemical energy storage and conversion technologies, such as water-splitting devices, rechargeable metal-air batteries, and regenerative fuel cells, are promising alternatives to traditional nonrenewable energy systems. Given the sluggish oxygen evolution rea...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/55638 |
| _version_ | 1848759671345643520 |
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| author | Dai, J. Zhu, Y. Chen, Y. Zhou, W. Shao, Zongping |
| author_facet | Dai, J. Zhu, Y. Chen, Y. Zhou, W. Shao, Zongping |
| author_sort | Dai, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 American Chemical Society. Electrochemical energy storage and conversion technologies, such as water-splitting devices, rechargeable metal-air batteries, and regenerative fuel cells, are promising alternatives to traditional nonrenewable energy systems. Given the sluggish oxygen evolution reaction (OER) in the above renewable-energy technologies, the development of efficient OER electrocatalysts with high performance is of great importance. Here, we demonstrate a layer-structured oxide Na 0.86 Co 0.95 Fe 0.05 O 2 (NCF0.05) as a novel electrocatalyst for efficient water oxidation in alkaline media. NCF0.05 shows enhanced performance, including lower overpotential, lower Tafel slope and better stability than the parent Na 0.86 CoO 2 (NC). Especially, the OER performance of NCF0.05 is comparable to the state-of-the-art IrO 2 catalyst. This enhanced catalytic activity of NCF0.05 may be ascribed to the unusual synergistic interplay between Fe and Co. A possible dual-metal-site mechanism was also proposed for OER on NCF0.05. |
| first_indexed | 2025-11-14T10:03:35Z |
| format | Journal Article |
| id | curtin-20.500.11937-55638 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:03:35Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-556382023-08-02T06:39:09Z Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media Dai, J. Zhu, Y. Chen, Y. Zhou, W. Shao, Zongping © 2017 American Chemical Society. Electrochemical energy storage and conversion technologies, such as water-splitting devices, rechargeable metal-air batteries, and regenerative fuel cells, are promising alternatives to traditional nonrenewable energy systems. Given the sluggish oxygen evolution reaction (OER) in the above renewable-energy technologies, the development of efficient OER electrocatalysts with high performance is of great importance. Here, we demonstrate a layer-structured oxide Na 0.86 Co 0.95 Fe 0.05 O 2 (NCF0.05) as a novel electrocatalyst for efficient water oxidation in alkaline media. NCF0.05 shows enhanced performance, including lower overpotential, lower Tafel slope and better stability than the parent Na 0.86 CoO 2 (NC). Especially, the OER performance of NCF0.05 is comparable to the state-of-the-art IrO 2 catalyst. This enhanced catalytic activity of NCF0.05 may be ascribed to the unusual synergistic interplay between Fe and Co. A possible dual-metal-site mechanism was also proposed for OER on NCF0.05. 2017 Journal Article http://hdl.handle.net/20.500.11937/55638 10.1021/acsami.7b06004 American Chemical Society restricted |
| spellingShingle | Dai, J. Zhu, Y. Chen, Y. Zhou, W. Shao, Zongping Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title | Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title_full | Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title_fullStr | Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title_full_unstemmed | Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title_short | Na0.86Co0.95Fe0.05O2 Layered Oxide As Highly Efficient Water Oxidation Electrocatalyst in Alkaline Media |
| title_sort | na0.86co0.95fe0.05o2 layered oxide as highly efficient water oxidation electrocatalyst in alkaline media |
| url | http://hdl.handle.net/20.500.11937/55638 |