Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions
5 pages, 4 figures, 1 table.-- Available online Nov 5, 2008.
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2009-03-01
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| Subjects: | Carbon nanostructures, Pt nanoparticles, Electrocatalyst, Methanol electrooxidation, Voltammetry, |
| Online Access: | http://hdl.handle.net/10261/11093 |
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dig-incar-es-10261-110932018-11-16T08:15:32Z Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions Sevilla Solís, Marta Sanchís, C. Valdés-Solís Iglesias, Teresa Morallón, E. Fuertes Arias, Antonio Benito Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry 5 pages, 4 figures, 1 table.-- Available online Nov 5, 2008. Highly graphitic carbon nanocoils (GCNC) were synthesized through the catalytic graphitization of carbon microspheres obtained by the hydrothermal carbonization of different saccharides (sucrose, glucose and starch) and were used as a support for Pt nanoparticles. The Pt nanoparticles were deposited by means of a polymer mediated-polyol method. The Pt catalysts were characterized both physically (XRD, TEM, HRTEM and XPS) and electrochemically (electrooxidation of methanol in an acid medium). The electrocatalysts thus prepared show a high dispersion of Pt nanoparticles, with diameters in the 3.0–3.3 nm range and a very narrow particle size distribution. These catalytic systems possess high electroactive Pt surface areas (up to 85 m2 g−1 Pt) and they exhibit large catalytic activities towards methanol electrooxidation (up to 201 A g−1 Pt). Moreover, they have a high resistance against oxidation, which is considerably greater than that of the Pt/Vulcan system. The financial support for this research work provided by the Spanish MCyT (MAT2008-00407, MAT2007-60621 and FEDER) is gratefully acknowledged. M.S. and C.S. acknowledge the assistance of the Spanish MCyT for the award of a FPU. Peer reviewed 2009-02-27T12:56:38Z 2009-02-27T12:56:38Z 2009-03-01 artículo http://purl.org/coar/resource_type/c_6501 Electrochimica Acta54(8): 2234-2238 (2009) 0013-4686 http://hdl.handle.net/10261/11093 10.1016/j.electacta.2008.10.042 en http://dx.doi.org/10.1016/j.electacta.2008.10.042 open 22195 bytes application/pdf Elsevier |
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Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry |
| spellingShingle |
Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry Sevilla Solís, Marta Sanchís, C. Valdés-Solís Iglesias, Teresa Morallón, E. Fuertes Arias, Antonio Benito Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| description |
5 pages, 4 figures, 1 table.-- Available online Nov 5, 2008. |
| format |
artículo |
| topic_facet |
Carbon nanostructures Pt nanoparticles Electrocatalyst Methanol electrooxidation Voltammetry |
| author |
Sevilla Solís, Marta Sanchís, C. Valdés-Solís Iglesias, Teresa Morallón, E. Fuertes Arias, Antonio Benito |
| author_facet |
Sevilla Solís, Marta Sanchís, C. Valdés-Solís Iglesias, Teresa Morallón, E. Fuertes Arias, Antonio Benito |
| author_sort |
Sevilla Solís, Marta |
| title |
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| title_short |
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| title_full |
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| title_fullStr |
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| title_full_unstemmed |
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| title_sort |
highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
| publisher |
Elsevier |
| publishDate |
2009-03-01 |
| url |
http://hdl.handle.net/10261/11093 |
| work_keys_str_mv |
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