Bimetallic AuPt alloy nanodendrites/reduced graphene oxide: One-pot ionic liquid-assisted synthesis and excellent electrocatalysis towards hydrogen evolution and methanol oxidation reactions. (12th January 2017)

• Record Type: Journal Article
• Authors: Feng, Jiu-Ju; Chen, Li-Xian; Ma, Xiaohong; Yuan, Junhua; Chen, Jian-Rong; Wang, Ai-Jun; Xu, Quan-Qing
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 2(2017)
• Page Start: 1120
• Page End: 1129
• Publication Date: 2017-01-12
• Subjects: Nanodendrites -- Reduced graphene oxide -- Ionic liquid -- Hydrogen evolution reaction -- Methanol oxidation reaction; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2016.08.066
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Herein, reduced graphene oxide supported well-dispersed bimetallic AuPt alloy nanodendrites (AuPt ANDs/rGO) were fabricated by a one-pot coreduction approach using ionic liquid (1-aminopropyl-3-methylimidazolium bromide, [APMIm]Br) as the stabilizer and capping agent. There is no any other polymer or seed involved. Characterized measurements include transmission electron microscopy (TEM), high angle annular dark-field scanning TEM (HAADF-STEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The typical samples displayed excellent electrocatalytic activity and durability towards hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR) in contrast with Pt nanocrystals/rGO and commercial Pt/C (50%) catalysts, which make it promising for practical catalysis in energy conversion and storage. Graphical abstract: Highlights: AuPt ANDs/rGO is large-scaled prepared by a simple and rapid method. [APMIm]Br is used as the stabilizer and capping agent, without any polymer or seed. The as-obtained nanocomposites show superior electrocatalytic activity and durability for HER and MOR.