The electrocatalytic performance of carbon ball supported RhCo alloy nanocrystals for the methanol oxidation reaction in alkaline media

The electrocatalytic performance of carbon ball supported RhCo alloy nanocrystals for the... Although both Pd and Rh fall into the Pd-group Pt-group elements (PPGEs), the electrocatalytic property of Rh nanocrystals for the methanol oxidation reaction (MOR) in alkaline media is rarely explored till now. In this work, we develop a surfactant-free co-precipitation/co-reduction method to synthesize the carbon ball supported RhCo alloy nanocrystals (RhCo/CB) nanohybrids with different Rh/Co atomic ratios and investigate their electrocatalytic acitvity for the MOR in alkaline media. Cyclic voltammetry and chronoamperometry measurements show Rh3Co1/CB nanohybrids have exceptional electrocatalytic activity and long-term stability for the MOR in alkaline media, much higher than commercial Pd/C and Pt/C electrocatalysts, demonstrating that Rh-based alloy nanocrystals may be highly promising Pt-alternative electrocatalyst for the MOR in alkaline media. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Power Sources Elsevier

The electrocatalytic performance of carbon ball supported RhCo alloy nanocrystals for the methanol oxidation reaction in alkaline media

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0378-7753
D.O.I.
10.1016/j.jpowsour.2017.10.051
Publisher site
See Article on Publisher Site

Abstract

Although both Pd and Rh fall into the Pd-group Pt-group elements (PPGEs), the electrocatalytic property of Rh nanocrystals for the methanol oxidation reaction (MOR) in alkaline media is rarely explored till now. In this work, we develop a surfactant-free co-precipitation/co-reduction method to synthesize the carbon ball supported RhCo alloy nanocrystals (RhCo/CB) nanohybrids with different Rh/Co atomic ratios and investigate their electrocatalytic acitvity for the MOR in alkaline media. Cyclic voltammetry and chronoamperometry measurements show Rh3Co1/CB nanohybrids have exceptional electrocatalytic activity and long-term stability for the MOR in alkaline media, much higher than commercial Pd/C and Pt/C electrocatalysts, demonstrating that Rh-based alloy nanocrystals may be highly promising Pt-alternative electrocatalyst for the MOR in alkaline media.

Journal

Journal of Power SourcesElsevier

Published: Dec 15, 2017

References

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