Electrooxidation of methanol on Pt-modified conductive polymer PEDOT

Langmuir : the ACS Journal of Surfaces and Colloids
S Patra, N Munichandraiah

Abstract

Platinum nanoparticles on a conductive polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), exhibit a high catalytic activity for electrooxidation of methanol. Pt nanoparticles are prepared by potentiostatic deposition in chloroplatinic acid solution at 0.1 V versus standard calomel electrode (SCE) on PEDOT coated carbon paper. PEDOT on the substrate facilitates the formation of uniform, well-dispersed, small clusters of Pt that consist of nanosize particles. The cyclic voltammogram of methanol oxidation is characterized by a forward oxidation peak current at 0.60 V vs SCE and a backward oxidation peak current at 0.50 V vs SCE. The mass specific peak current is found to be as high as 614 mA mg(-1). The effects of concentration of H2SO4, mass of Pt, and quantity of PEDOT on mass specific activity are studied.

References

Feb 12, 1990·Physical Review Letters·W EberhardtD Sondericker
Mar 5, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Zhaolin LiuLeong Ming Gan

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Citations

Feb 11, 2011·Chemical Communications : Chem Comm·Chinnaiah Sivakumar, Kanala Lakshminarasimha Phani
Jun 30, 2011·Nanoscale Research Letters·Cuifeng ZhouSimon Ringer
May 3, 2014·Accounts of Chemical Research·Asit PatraSuresh Chand
May 12, 2012·Chemical Communications : Chem Comm·Dennis SheberlaMichael Bendikov
Mar 28, 2012·Macromolecular Rapid Communications·Kate R EdelmanBradley J Holliday
Oct 16, 2016·Journal of Colloid and Interface Science·G RajeshkhannaG Ranga Rao
Dec 14, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Snehangshu PatraLudovic Legrand
Mar 10, 2011·ACS Applied Materials & Interfaces·Michael B McDonald, Michael S Freund

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