TY - JOUR
T1 - Enhanced electrocatalytic performance for methanol oxidation of a novel Pt-dispersed poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) electrode
AU - Kuo, Chung Wen
AU - Huang, Li Ming
AU - Wen, Ten Chin
AU - Gopalan, A.
N1 - Funding Information:
The financial support of this work by the National Science Council of Taiwan under NSC-94-2214-E-006-010 is gratefully acknowledged.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/9/29
Y1 - 2006/9/29
N2 - A new catalyst electrode was prepared in which Pt particles were homogeneously distributed into a poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS) matrix. Catalytic activity and stability for the oxidation of methanol were studied by using cyclic voltammetry and chronoamperometry. For comparative purposes, bulk Pt and PEDOT-PSS based electrodes were fabricated and tested. Enhanced electrocatalytic activity toward the oxidation of methanol was noticed when Pt particles were embedded into the PEDOT-PSS matrix. A high catalytic current for methanol oxidation (2.51 mA cm-2) was found for the PEDOT-PSS-Pt electrode in comparison to bulk Pt electrode (0.45 mA cm-2) at +0.6 V (versus Ag/AgCl). The enhanced electrocatalytic activity might be due to the dispersion of Pt particles into the PEDOT-PSS matrix and the synergistic effects between the dispersed Pt particles and the PEDOT-PSS matrix. The morphology and crystalline behavior of PEDOT-PSS-Pt and simple ITO/Pt films were determined by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) and correlated with the enhanced electrocatalytic activity for the Pt-dispersed PEDOT-PSS electrode.
AB - A new catalyst electrode was prepared in which Pt particles were homogeneously distributed into a poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS) matrix. Catalytic activity and stability for the oxidation of methanol were studied by using cyclic voltammetry and chronoamperometry. For comparative purposes, bulk Pt and PEDOT-PSS based electrodes were fabricated and tested. Enhanced electrocatalytic activity toward the oxidation of methanol was noticed when Pt particles were embedded into the PEDOT-PSS matrix. A high catalytic current for methanol oxidation (2.51 mA cm-2) was found for the PEDOT-PSS-Pt electrode in comparison to bulk Pt electrode (0.45 mA cm-2) at +0.6 V (versus Ag/AgCl). The enhanced electrocatalytic activity might be due to the dispersion of Pt particles into the PEDOT-PSS matrix and the synergistic effects between the dispersed Pt particles and the PEDOT-PSS matrix. The morphology and crystalline behavior of PEDOT-PSS-Pt and simple ITO/Pt films were determined by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) and correlated with the enhanced electrocatalytic activity for the Pt-dispersed PEDOT-PSS electrode.
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U2 - 10.1016/j.jpowsour.2006.01.100
DO - 10.1016/j.jpowsour.2006.01.100
M3 - Article
AN - SCOPUS:33748424105
VL - 160
SP - 65
EP - 72
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -