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Mild Synthesis of Pt/SnO 2 /Graphene Nanocomposites with Remarkably Enhanced Ethanol Electro‐oxidation Activity and Durability
Author(s) -
Qu Yunteng,
Gao Yunzhi,
Wang Long,
Rao Jiancun,
Yin Geping
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503867
Subject(s) - durability , nanocomposite , graphene , ethanol , chemical engineering , materials science , platinum , chemistry , nanotechnology , catalysis , composite material , organic chemistry , engineering
We have designed a new Pt/SnO 2 /graphene nanomaterial by using L ‐arginine as a linker; this material shows the unique Pt‐around‐SnO 2 structure. The Sn 2+ cations reduce graphene oxide (GO), leading to the in situ formation of SnO 2 /graphene hybrids. L ‐Arginine is used as a linker and protector to induce the in situ growth of Pt nanoparticles (NPs) connected with SnO 2 NPs and impede the agglomeration of Pt NPs. The obtained Pt/SnO 2 /graphene composites exhibit superior electrocatalytic activity and stability for the ethanol oxidation reaction as compared with the commercial Pt/C catalyst owing to the close‐connected structure between the Pt NPs and SnO 2 NPs. This work should have a great impact on the rational design of future metal–metal oxide nanostructures with high catalytic activity and stability for fuel cell systems.