Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 41, Issue 28, Pages 12062-12068Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.05.134
Keywords
Carbon-nanosphere-supported Pt nanocatalyst; Hydrothermal synthesis; Methanol oxidation; DAFCs
Categories
Funding
- National Natural Science Foundation of China [21403126, 21503120]
- Innovation Foundation from China Three Gorges University [2015CX144]
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One kind carbon nanosphere supported Pt nanocatalyst (Pt/CN-1) has been successfully synthesized by a facile one-pot hydrothermal synthesis using sucrose as carbon source and triblock pluronic copolymer P123 as reducer and stabilizer. The obtained Pt nanoparticles with an average diameter at 3.0 nm were uniformly distributed on the surface of the carbon nanospheres. The other kind Pt/CN-2 was prepared through the same route just in absence of P123, the carbon sphere was used as both carrier and reducer due to its reducing nature. Characterization demonstrated that the Pt/CN-2 was aggregated seriously without the protection of P123. The electrocatalytic tests indicated that the Pt/CN-1 nanocatalyst exhibited an enhanced electrocatalytic activity toward methanol oxidation in acidic media than that of Pt/CN-2 catalyst and commercial Pt/C catalyst. The promising synthetic method provides a new avenue to prepare carbon spheres supported Pt-based nano catalysts used for direct alcohols fuel cells (DAFCs). (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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