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Issue 1, 2010
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Polymer wrapping technique: an effective route to prepare Pt nanoflower/carbon nanotube hybrids and application in oxygen reduction

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Abstract

We reported an effective and environmentally friendly method of decorating Pt nanoflowers (Pt NFs) on the surface of carbon nanotubes (CNTs). By reduction of K2PtCl4 with L-ascorbic acid in an aqueous solution, Pt nanoparticles with a flower-like morphology were deposited onto the surface of poly(sodium 4-styrenesulfonate) wrapped CNTs (PSS-CNTs). PSS plays a dual role: dispersing stable CNTs into solution in water, and providing functional groups that bind metal ions and metal nanoparticles. As-prepared Pt NFs/PSS-CNTs showed a large electroactive specific surface area, and presented excellent electrocatalytic activity for oxygen reduction. Au and Pd nanoparticles could also be deposited on PSS-CNTs. This method could be extended to the synthesis of different kinds of metal nanoparticles on other polymer wrapped CNTs. As-prepared metal nanoparticle/CNT nanocomposites could find use as electrocatalysts in polymer electrolyte membrane fuel cells.

Graphical abstract: Polymer wrapping technique: an effective route to prepare Pt nanoflower/carbon nanotube hybrids and application in oxygen reduction

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Publication details

The article was received on 10 Aug 2009, accepted on 16 Oct 2009 and first published on 13 Nov 2009


Article type: Paper
DOI: 10.1039/B916423E
Citation: Energy Environ. Sci., 2010,3, 144-149
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    Polymer wrapping technique: an effective route to prepare Pt nanoflower/carbon nanotube hybrids and application in oxygen reduction

    W. Yang, Y. Wang, J. Li and X. Yang, Energy Environ. Sci., 2010, 3, 144
    DOI: 10.1039/B916423E

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