Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation
In this work, a series of nanostructured tungsten carbide/carbon (WC/Cx) composites are in situ synthesized using a microwave heating method. The composites are used as platinum (Pt) catalyst supports for methanol oxidation in acid media. Their structure, composition and specific surface area are ch...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier SA
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/5390 |
| _version_ | 1848744783323856896 |
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| author | Lu, J. Li, Z.H. Jiang, San Ping Shen, P. Li, L. |
| author_facet | Lu, J. Li, Z.H. Jiang, San Ping Shen, P. Li, L. |
| author_sort | Lu, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this work, a series of nanostructured tungsten carbide/carbon (WC/Cx) composites are in situ synthesized using a microwave heating method. The composites are used as platinum (Pt) catalyst supports for methanol oxidation in acid media. Their structure, composition and specific surface area are characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Raman spectroscopy, and Brunauer–Emmett–Teller (BET) measurements. Platinum catalysts supported on the WC/Cx composites are synthesized by an improved impregnation method. The electrochemical performance and stability of the catalysts are evaluated by cyclic voltammetry (CV) and chronoamperometry (CA). The Pt/WC/Cx catalysts exhibit higher activity and stability than does the Pt/VC (Pt supported on carbon black Vulcan XC-72) catalyst. The results indicate that there is a synergistic effect between Pt and the WC/Cx support, which can promote the electrocatalysis of Pt for methanol oxidation reaction (MOR). |
| first_indexed | 2025-11-14T06:06:57Z |
| format | Journal Article |
| id | curtin-20.500.11937-5390 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:06:57Z |
| publishDate | 2012 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-53902017-09-13T14:40:30Z Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation Lu, J. Li, Z.H. Jiang, San Ping Shen, P. Li, L. Tungsten carbide Catalyst support Microwave heating Methanol oxidation reaction In this work, a series of nanostructured tungsten carbide/carbon (WC/Cx) composites are in situ synthesized using a microwave heating method. The composites are used as platinum (Pt) catalyst supports for methanol oxidation in acid media. Their structure, composition and specific surface area are characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Raman spectroscopy, and Brunauer–Emmett–Teller (BET) measurements. Platinum catalysts supported on the WC/Cx composites are synthesized by an improved impregnation method. The electrochemical performance and stability of the catalysts are evaluated by cyclic voltammetry (CV) and chronoamperometry (CA). The Pt/WC/Cx catalysts exhibit higher activity and stability than does the Pt/VC (Pt supported on carbon black Vulcan XC-72) catalyst. The results indicate that there is a synergistic effect between Pt and the WC/Cx support, which can promote the electrocatalysis of Pt for methanol oxidation reaction (MOR). 2012 Journal Article http://hdl.handle.net/20.500.11937/5390 10.1016/j.jpowsour.2011.11.018 Elsevier SA restricted |
| spellingShingle | Tungsten carbide Catalyst support Microwave heating Methanol oxidation reaction Lu, J. Li, Z.H. Jiang, San Ping Shen, P. Li, L. Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title | Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title_full | Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title_fullStr | Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title_full_unstemmed | Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title_short | Nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| title_sort | nanostructured tungsten carbide/carbon composites synthesized by a microwave heating method as supports of platinum catalysts for methanol oxidation |
| topic | Tungsten carbide Catalyst support Microwave heating Methanol oxidation reaction |
| url | http://hdl.handle.net/20.500.11937/5390 |