Preparation of Platinum-Poly(O-dihydroxybenzene) Composite Catalyst and Its Electrocatalytic Activity Toward Methanol and Formic Acid Oxidation

✍ Scribed by F. Ren; R. Zhou; F. Jiang; W. Zhou; Y. Du; J. Xu; C. Wang

• Publisher: John Wiley and Sons
• Year: 2012
• Tongue: English
• Weight: 600 KB
• Volume: 12
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.201100105

✦ Synopsis

Abstract

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.