An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst
© 2016, Springer Science+Business Media New York. Home-made graphene oxide (GO) with a high surface area was functionalized by polydopamine (PDA) and was labeled PDA-GO, while GO without PDA was labeled as GO. With different compositions of metals (Pt and/or Pd), the electrodeposition of the metals...
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th-cmuir.6653943832-570002018-09-05T03:33:32Z An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst Aunanong Pinithchaisakula Suwaphid Themsirimongkon Napapha Promsawan Paralee Weankeaw Kontad Ounnunkad Surin Saipanya Chemistry © 2016, Springer Science+Business Media New York. Home-made graphene oxide (GO) with a high surface area was functionalized by polydopamine (PDA) and was labeled PDA-GO, while GO without PDA was labeled as GO. With different compositions of metals (Pt and/or Pd), the electrodeposition of the metals onto the prepared GO and PDA-GO supports was prepared for the anode electrocatalyst. The electrocatalytic activities of the electrocatalysts (xPtPd/GO and xPtPd/PDA-GO, where x = 1–5) were studied in the oxidation of alcohols (e.g., methanol and ethanol). Morphologies obtained from transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) images showed that the as-prepared GO and PDA-GO supports can accommodate electrodeposited metals loaded on the topmost layer of the support surfaces, although the size of nanoparticles is somewhat different. The electrochemical results indicated that the xPtPd/PDA-GO catalysts offered outstanding oxidation efficiencies. The prepared 5PtPd/PDA-GO catalyst provided enhanced activity and long-time stability in the oxidation reactions. The GO surface modified by the polymer and the other electrodeposited metal catalysts provided a larger number of available active sites, as the PDA offered a greater electric connection between the metal catalysts and the GO support during alcohol oxidation. [Figure not available: see fulltext.] 2018-09-05T03:33:32Z 2018-09-05T03:33:32Z 2017-01-01 Journal 18685994 18682529 2-s2.0-85006355385 10.1007/s12678-016-0338-6 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85006355385&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/57000 |
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Chemistry Aunanong Pinithchaisakula Suwaphid Themsirimongkon Napapha Promsawan Paralee Weankeaw Kontad Ounnunkad Surin Saipanya An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
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© 2016, Springer Science+Business Media New York. Home-made graphene oxide (GO) with a high surface area was functionalized by polydopamine (PDA) and was labeled PDA-GO, while GO without PDA was labeled as GO. With different compositions of metals (Pt and/or Pd), the electrodeposition of the metals onto the prepared GO and PDA-GO supports was prepared for the anode electrocatalyst. The electrocatalytic activities of the electrocatalysts (xPtPd/GO and xPtPd/PDA-GO, where x = 1–5) were studied in the oxidation of alcohols (e.g., methanol and ethanol). Morphologies obtained from transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) images showed that the as-prepared GO and PDA-GO supports can accommodate electrodeposited metals loaded on the topmost layer of the support surfaces, although the size of nanoparticles is somewhat different. The electrochemical results indicated that the xPtPd/PDA-GO catalysts offered outstanding oxidation efficiencies. The prepared 5PtPd/PDA-GO catalyst provided enhanced activity and long-time stability in the oxidation reactions. The GO surface modified by the polymer and the other electrodeposited metal catalysts provided a larger number of available active sites, as the PDA offered a greater electric connection between the metal catalysts and the GO support during alcohol oxidation. [Figure not available: see fulltext.] |
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Aunanong Pinithchaisakula Suwaphid Themsirimongkon Napapha Promsawan Paralee Weankeaw Kontad Ounnunkad Surin Saipanya |
author_facet |
Aunanong Pinithchaisakula Suwaphid Themsirimongkon Napapha Promsawan Paralee Weankeaw Kontad Ounnunkad Surin Saipanya |
author_sort |
Aunanong Pinithchaisakula |
title |
An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
title_short |
An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
title_full |
An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
title_fullStr |
An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
title_full_unstemmed |
An Investigation of a Polydopamine-Graphene Oxide Composite as a Support for an Anode Fuel Cell Catalyst |
title_sort |
investigation of a polydopamine-graphene oxide composite as a support for an anode fuel cell catalyst |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85006355385&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/57000 |
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1681424797201858560 |