Nitrogen-doped carbon black as methanol tolerant electrocatalyst for oxygen reduction reaction in direct methanol fuel cells
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Nitrogen-doped carbon black as methanol tolerant electrocatalyst for oxygen reduction reaction in direct methanol fuel cells
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| Creator |
Jeyabharathi, C.
Venkateshkumar, P. Sankararao, M. Mathiyarasu, J. Phani, K.L.N. |
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| Subject |
Electrodics and Electrocatalysis
Fuel Cells |
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| Description |
Nitrogen-doped metal free carbon catalysts were prepared via pyrolysis of polyaniline-coated carbon in
different ratios with varying nitrogen content. The surface states and surface composition were investigated
using XPS (X-ray photoelectron spectroscopy). XPS analysis confirms the presence of pyridinic
and pyrollic nitrogen in the carbon network that is responsible for the oxygen reduction activity. The
shift in onset potential of oxygen reduction on C:N (1:1) is
∼0.3 V more positive compared to Vulcan
carbon, shows improved activity toward oxygen reduction reaction in acidic electrolyte. Hydrodynamic
voltammetric studies confirm that the reduction of oxygen follows the 4e− pathway which leads to the
formation of water
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| Publisher |
Elsevier
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| Date |
2012
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3021/1/033-2012.pdf
Jeyabharathi, C. and Venkateshkumar, P. and Sankararao, M. and Mathiyarasu, J. and Phani, K.L.N. (2012) Nitrogen-doped carbon black as methanol tolerant electrocatalyst for oxygen reduction reaction in direct methanol fuel cells. Electrochimica Acta, 74. pp. 171-175. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3021/ |
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