Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells
We have developed a new type of flexible electrodes based on Cu nanocube-decorated free-standing graphene paper (GP) using a facile electrodeposition method. The Cu nanocubes–graphene paper (Cu–GP) hybrid electrode processes remarkable electrocatalytic activity with an onset potential of −0.10 V tow...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/99163 http://hdl.handle.net/10220/17170 |
| _version_ | 1811683900373598208 |
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| author | Gao, Hongcai Wang, Yuxi Xiao, Fei Ching, Chi Bun Duan, Hongwei |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Gao, Hongcai Wang, Yuxi Xiao, Fei Ching, Chi Bun Duan, Hongwei |
| author_sort | Gao, Hongcai |
| collection | NTU |
| description | We have developed a new type of flexible electrodes based on Cu nanocube-decorated free-standing graphene paper (GP) using a facile electrodeposition method. The Cu nanocubes–graphene paper (Cu–GP) hybrid electrode processes remarkable electrocatalytic activity with an onset potential of −0.10 V toward hydrazine oxidation in alkaline solutions and can serve as the catalyst layer for direct hydrazine fuel cells. One interesting finding is that a copper hydroxide/oxide layer in situ formed on Cu nanocube surfaces plays an important role in enhancing the electrocatalytic activity and durability of the electrocatalyst. A totally irreversible and diffusion-controlled oxidation of hydrazine occurs on the electrocatalyst, eventually leading to environmentally friendly products such as nitrogen and water. |
| first_indexed | 2024-10-01T04:20:05Z |
| format | Journal Article |
| id | ntu-10356/99163 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:20:05Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/991632020-03-07T13:19:19Z Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells Gao, Hongcai Wang, Yuxi Xiao, Fei Ching, Chi Bun Duan, Hongwei School of Chemical and Biomedical Engineering School of Mechanical and Aerospace Engineering DRNTU::Engineering::Nanotechnology We have developed a new type of flexible electrodes based on Cu nanocube-decorated free-standing graphene paper (GP) using a facile electrodeposition method. The Cu nanocubes–graphene paper (Cu–GP) hybrid electrode processes remarkable electrocatalytic activity with an onset potential of −0.10 V toward hydrazine oxidation in alkaline solutions and can serve as the catalyst layer for direct hydrazine fuel cells. One interesting finding is that a copper hydroxide/oxide layer in situ formed on Cu nanocube surfaces plays an important role in enhancing the electrocatalytic activity and durability of the electrocatalyst. A totally irreversible and diffusion-controlled oxidation of hydrazine occurs on the electrocatalyst, eventually leading to environmentally friendly products such as nitrogen and water. 2013-10-31T08:27:13Z 2019-12-06T20:04:01Z 2013-10-31T08:27:13Z 2019-12-06T20:04:01Z 2012 2012 Journal Article Gao, H., Wang, Y., Xiao, F., Ching, C. B., & Duan, H. (2012). Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells. The Journal of Physical Chemistry C, 116(14), 7719-7725. https://hdl.handle.net/10356/99163 http://hdl.handle.net/10220/17170 10.1021/jp3021276 en The journal of physical chemistry C |
| spellingShingle | DRNTU::Engineering::Nanotechnology Gao, Hongcai Wang, Yuxi Xiao, Fei Ching, Chi Bun Duan, Hongwei Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title | Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title_full | Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title_fullStr | Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title_full_unstemmed | Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title_short | Growth of copper nanocubes on graphene paper as free-standing electrodes for direct hydrazine fuel cells |
| title_sort | growth of copper nanocubes on graphene paper as free standing electrodes for direct hydrazine fuel cells |
| topic | DRNTU::Engineering::Nanotechnology |
| url | https://hdl.handle.net/10356/99163 http://hdl.handle.net/10220/17170 |
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