Facile Synthesis of Ag@Pt Core‐Shell Nanoparticles with Different Dendrites Pt Shells. Issue 29 (12th October 2017)

• Record Type: Journal Article
• Authors: Wu, Haofei; Qi, Weihong; Peng, Hongcheng; He, Jieting
• Is Part Of: ChemistrySelect. Volume 2:Issue 29(2017)
• Page Start: 9344
• Page End: 9348
• Publication Date: 2017-10-12
• Subjects: Core-shell structures Nanodendrites Nanoalloys; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201701863
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: We presented a simple method for synthesis of various Ag@Pt nanoarchitectures via overgrowth of Pt shell structures in Ag cores by controlling the amount of Pt precursor. When the molar ratio of Ag‐to‐Pt precursor was 1: 3 and 1: 4, the Ag@Pt3 and Ag@Pt4 nanoparticles had a large number of Pt branches, which lead to a large electrochemically active specific surface area (45.5 m 2 /gPt, 59.05 m 2 /gPt, respectively). And compared with commercial Pt/C (323.9 mA/mgPt ), Ag@Pt3 (381.1 mA.mgPt )and Ag@Pt4 (479.2 mA/mgPt ) had a better catalytic effect inthe methanol oxidation reaction (MOR). Abstract : We presented a simple method for synthesis of various Ag@Pt nanoarchitectures via overgrowth of Pt shell structures in Ag cores by controlling the amount of Pt precursor, while the electrocatalytic performance of the particles depends on their composition and morphology.