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- Title
Nano-composite Based on Platinum Particles and Modified Polyaniline for Methanol, Formic Acid, and Ethanol Oxidation.
- Authors
Kuo, Chung-Wen; Tsai, Cheng-Jang; Chen, Wan-Ping; Chen, Pin-Rong; Wu, Tzi-Yi; Tseng, Ching-Guey
- Abstract
Polyaniline (PANI) is doped with poly(styrenesulfonic acid) (PSS) via a doping-dedoping-redoping process. Fourier transform infrared (FT-IR) spectroscopy results confirm that PANI is doped with PSS. X-ray photoelectron spectroscopy (XPS) results indicate that the strong interaction between Pt particles and sulfonic acid groups of PANI-PSS. Scanning electron microscopy (SEM) images reveal that PANI-PSS is composed of highly porous nanowires. Platinum (Pt) can be deposited onto PANI-PSS film using the potentiostatic mode to obtain PANI-PSS-Pt composite electrode. Transmission electron microscopy (TEM) image result indicates that Pt particles are dispersed uniformly into the electrode. The effects of concentration on electrocatalytic oxidation of ethanol, formic acid, and methanol are investigated. Cyclic voltammetry results and chronoamperometric response measurements show that the activity and stability toward methanol oxidation of the PANI-PSS-Pt electrode are better than those of the PANI-PSS-Pt electrodes toward ethanol and formic acid oxidation.
- Subjects
PLATINUM compounds; POLYANILINES; ETHANOL; METHANOL; FORMIC acid; OXIDATION; TRANSMISSION electron microscopy; CYCLIC voltammetry
- Publication
Journal of the Chinese Chemical Society, 2014, Vol 61, Issue 7, p819
- ISSN
0009-4536
- Publication type
Article
- DOI
10.1002/jccs.201300634