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Journal of Materials Science
Erschienen in: Journal of Materials Science 23/2018

06.08.2018 | Chemical routes to materials

PdCu alloy nanoparticles supported on reduced graphene oxide for electrocatalytic oxidation of methanol

verfasst von: Huangqing Ye, Yunming Li, Jiahui Chen, Jiali Sheng, Xian-Zhu Fu, Rong Sun, Ching-Ping Wong

Erschienen in: Journal of Materials Science | Ausgabe 23/2018

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Abstract

PdCu nanoparticles supported on reduced graphene oxide nanosheets (PdCu/rGO) with uniform size distribution and dispersion are fabricated by a facile two-step reduction method. During the whole synthesis procedure, no capping agent or surfactant has been used. By varying the Pd/Cu molar ratio, electrocatalysts with different size distribution and dispersion of nanoparticles on graphene are prepared, and their electrocatalytic performance toward methanol oxidation reaction has been studied. It is concluded that the as-prepared electrocatalyst of Pd2Cu2/rGO, of which the Pd/Cu molar ratio is 1:1, exhibits the highest mass activity and most stable electroactivity. Compared to commercial Pd/C, the as-prepared Pd2Cu2/rGO also demonstrates 2.49 times higher mass activity and much more stable electroactivity. The excellent performance of the Pd2Cu2/rGO electrocatalyts is mainly due to the advantages of bimetallic synergistic effects and the supporting material of graphene. Owing to the advantages of high electroactivity, long stability, and cost-effectiveness, the as-prepared Pd2Cu2/rGO nanocomposites are promising anode electrocatalysts for direct methanol fuel cells.
Vorheriger Artikel Controlled synthesis of train-structured montmorillonite/layered double hydroxide nanocomposites by regulating the hydrolysis of polylactic acid
Nächster Artikel In-situ construction of 2D direct Z-scheme g-C3N4/g-C3N4 homojunction with high photocatalytic activity

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Metadaten
Titel
PdCu alloy nanoparticles supported on reduced graphene oxide for electrocatalytic oxidation of methanol
verfasst von
Huangqing Ye
Yunming Li
Jiahui Chen
Jiali Sheng
Xian-Zhu Fu
Rong Sun
Ching-Ping Wong
Publikationsdatum
06.08.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 23/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2759-5

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