A dendritic core–shell Cu@PtCu alloy electrocatalyst resulting in an enhanced electron transfer ability and boosted surface active sites for an improved methanol oxidation reaction. Issue 54 (12th May 2017)

• Record Type: Journal Article
• Authors: Liu, Jiayin; Xu, Guangran; Liu, Baocang; Zhang, Jun
• Is Part Of: Chemical communications. Volume 53:Issue 54(2017)
• Page Start: 7457
• Page End: 7460
• Publication Date: 2017-05-12
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc01559c
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A facile one-pot strategy is developed to synthesize dendritic core–shell Cu@PtCu alloy nanocrystals with controlled morphologies and structural features, which show superior electrocatalytic performance toward a methanol oxidation reaction. Abstract : We reported the design of a core–shell Cu@PtCu electrocatalyst consisting of dendritic PtCu alloy branches assembling on Cu core nanocrystals. The Cu@PtCu electrocatalyst shows superior electrocatalytic performance toward a methanol oxidation reaction. Its specific activity and mass activity can reach 3.56 mA cm −2 and 1568 mA mgPt −1, which are 4.8 and 7.1 times higher than those of a commercial 20% Pt/C catalyst.