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Preparation of Platinum‐Poly( O ‐dihydroxybenzene) Composite Catalyst and Its Electrocatalytic Activity Toward Methanol and Formic Acid Oxidation
Author(s) -
Ren F.,
Zhou R.,
Jiang F.,
Zhou W.,
Du Y.,
Xu J.,
Wang C.
Publication year - 2012
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201100105
Subject(s) - formic acid , methanol , catalysis , platinum , platinum nanoparticles , electrochemistry , electrocatalyst , limiting current , chemistry , inorganic chemistry , composite number , glassy carbon , nuclear chemistry , electrode , materials science , cyclic voltammetry , organic chemistry , composite material
A composite catalyst has been successfully prepared by dispersing Pt nanoparticles on a poly( o ‐dihydroxybenzene) (P o DHB) modified glassy carbon (GC) electrode and characterized by SEM, EDX, and electrochemical analysis. Compared with Pt nanoparticles deposited on the bare GC, the Pt/P o DHB/GC exhibits higher catalytic activity and stronger poisoning tolerance for electro‐oxidation of methanol and formic acid. The enhanced performance could be attributed to the increase of electrochemical active surface area (EASA) arisen from the P o DHB modification. Furthermore, performance limiting factors such as platinum loading, polymer mass, H 2 SO 4 , methanol, and formic acid concentrations have been evaluated for optimizing the electrocatalytic activities.