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Microwave‐Induced Formation of Platinum Nanostructured Networks with Superior Electrochemical Activity and Stability
Author(s) -
Jia Falong,
Wang Fangfang,
Lin Yun,
Zhang Lizhi
Publication year - 2011
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.201101179
Subject(s) - benzyl alcohol , materials science , electrochemistry , methanol , catalysis , platinum , vinyl alcohol , nanocrystal , microwave irradiation , microwave , template , nanotechnology , chemical engineering , organic chemistry , chemistry , electrode , composite material , polymer , physics , quantum mechanics , engineering
Platinum nanostructured networks (PNNs) can be synthesized through the chemical reduction of H 2 PtCl 6 by benzyl alcohol under microwave irradiation without the introduction of any surfactants, templates, or seeds. The synthesis route utilizes benzyl alcohol as both the reductant and the structure‐directing agent, and thus, the process is particularly simple and highly repeatable. The formation of the PNN structure was ascribed to the collision‐induced fusion of Pt nanocrystals owing to the cooperative functions of microwave irradiation and benzyl alcohol. Compared with a commercial Pt/C catalyst, the as‐prepared PNNs possessed superior electrochemical activity and stability on the oxidation of methanol because of the unique 3D nanostructured networks and abundant defects formed during the assembly process. This study may provide a facile microwave‐induced approach for the synthesis of other 3D nanostructured noble metals or their alloys.