High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires
In this paper, using manganese oxide as an example, we report the successful design and synthesis of a novel one-dimensional highly graphitic carbon-tipped manganese oxide/mesoporous carbon/ manganese oxide hybrid nanowire. The unique str...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/93940 http://hdl.handle.net/10220/7257 |
| _version_ | 1826111257211568128 |
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| author | Jiang, Hao Yang, Liping Li, Chunzhong Yan, Chaoyi Lee, Pooi See Ma, Jan |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Jiang, Hao Yang, Liping Li, Chunzhong Yan, Chaoyi Lee, Pooi See Ma, Jan |
| author_sort | Jiang, Hao |
| collection | NTU |
| description | In this paper, using manganese oxide as an example, we report the successful design and synthesis of
a novel one-dimensional highly graphitic carbon-tipped manganese oxide/mesoporous carbon/
manganese oxide hybrid nanowire. The unique structure significantly improves the conductivity of
metal oxide materials, which is a key limitation in pseudocapacitors. The hybrid nanowire with optimal
carbon content, when applied as an electrode, exhibits superior capacitive properties in 1 M Na2SO4
aqueous solution, such as high specific capacitance (266 F g 1
at 1 A g 1
), excellent rate capability
(56.4% capacity retention at 60 A g 1
) and outstanding cycling stability (without degradation after 1200
cycles). The energy densities achieved can be as high as 20.8Wh kg 1
, at a power density of 30 kWkg 1
.
The results demonstrated that the manganese oxide in our hybrid nanomaterial was efficiently utilized
with the assistance of the highly conductive graphitic carbon-tipped mesoporous carbon shell. It is
reckoned that the present low-cost novel hybrid nanowire can serve as a promising electrode material
for supercapacitors and other electrochemical devices. |
| first_indexed | 2024-10-01T02:47:43Z |
| format | Journal Article |
| id | ntu-10356/93940 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:47:43Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/939402020-09-26T22:16:31Z High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires Jiang, Hao Yang, Liping Li, Chunzhong Yan, Chaoyi Lee, Pooi See Ma, Jan School of Materials Science & Engineering Temasek Laboratories DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry DRNTU::Engineering::Materials::Energy materials In this paper, using manganese oxide as an example, we report the successful design and synthesis of a novel one-dimensional highly graphitic carbon-tipped manganese oxide/mesoporous carbon/ manganese oxide hybrid nanowire. The unique structure significantly improves the conductivity of metal oxide materials, which is a key limitation in pseudocapacitors. The hybrid nanowire with optimal carbon content, when applied as an electrode, exhibits superior capacitive properties in 1 M Na2SO4 aqueous solution, such as high specific capacitance (266 F g 1 at 1 A g 1 ), excellent rate capability (56.4% capacity retention at 60 A g 1 ) and outstanding cycling stability (without degradation after 1200 cycles). The energy densities achieved can be as high as 20.8Wh kg 1 , at a power density of 30 kWkg 1 . The results demonstrated that the manganese oxide in our hybrid nanomaterial was efficiently utilized with the assistance of the highly conductive graphitic carbon-tipped mesoporous carbon shell. It is reckoned that the present low-cost novel hybrid nanowire can serve as a promising electrode material for supercapacitors and other electrochemical devices. Accepted version 2011-10-13T03:25:44Z 2019-12-06T18:48:10Z 2011-10-13T03:25:44Z 2019-12-06T18:48:10Z 2011 2011 Journal Article Jiang, H., Yang, L., Li, C., Yan, C., Lee, P. S. & Ma, J. (2011). High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires. Energy & Environmental Science, 4, 1813-1819. https://hdl.handle.net/10356/93940 http://hdl.handle.net/10220/7257 10.1039/c1ee01032h en Energy & environmental science © 2011 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Energy & Environmental Science, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1039/C1EE01032H ] application/pdf |
| spellingShingle | DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry DRNTU::Engineering::Materials::Energy materials Jiang, Hao Yang, Liping Li, Chunzhong Yan, Chaoyi Lee, Pooi See Ma, Jan High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title | High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title_full | High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title_fullStr | High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title_full_unstemmed | High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title_short | High–rate electrochemical capacitors from highly graphitic carbon–tipped manganese oxide/mesoporous carbon/manganese oxide hybrid nanowires |
| title_sort | high rate electrochemical capacitors from highly graphitic carbon tipped manganese oxide mesoporous carbon manganese oxide hybrid nanowires |
| topic | DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry DRNTU::Engineering::Materials::Energy materials |
| url | https://hdl.handle.net/10356/93940 http://hdl.handle.net/10220/7257 |
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