<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Harima, Yutaka</style></author><author><style face="normal" font="default" size="100%">Jiang, Xiaoqing</style></author><author><style face="normal" font="default" size="100%">Patil, Rahul</style></author><author><style face="normal" font="default" size="100%">Komaguchi, Kenji</style></author><author><style face="normal" font="default" size="100%">Mizota, Haruo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of film structure on mobilities of charge carriers in conducting polymers</style></title><secondary-title><style face="normal" font="default" size="100%">Electrochimica Acta</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Doping</style></keyword><keyword><style  face="normal" font="default" size="100%">electrosynthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">mobility</style></keyword><keyword><style  face="normal" font="default" size="100%">poly(3-hexylthiophene)</style></keyword><keyword><style  face="normal" font="default" size="100%">swelling</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">NOV</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">28</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">52</style></volume><pages><style face="normal" font="default" size="100%">8088-8095</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Two sorts of poly(3-hexylthiophene) (PHT) films with the same chemical compositions were prepared, and their electrochemical, spectroscopic, and transport properties were studied with a special interest in a possible influence of film structure on mobilities of charge carriers. One of the PHT films was electrochemically synthesized using 3-hexylthiophene as a monomer (as-grown film) and the other was obtained by dissolving the as-grown film in chloroform and then casting the polymer solution (cast film). A clear difference was observed in the mobility versus doping level plot between the two sorts of PHT films, demonstrating that the difference is caused only by a distinction in film structure. An initial decreasing feature of the mobility plot observed for the cast films was accounted for in terms of swelling of the films at an early stage of doping. (C) 2007 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">82</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">4.803</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Adhikari, Arindam</style></author><author><style face="normal" font="default" size="100%">Radhakrishnan, S.</style></author><author><style face="normal" font="default" size="100%">Patil, Rahul</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of dopant ions on properties of conducting polypyrrole and its electrocatalytic activity towards methanol oxidation</style></title><secondary-title><style face="normal" font="default" size="100%">Synthetic Metals</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">charge transfer</style></keyword><keyword><style  face="normal" font="default" size="100%">electrocatalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">ESR</style></keyword><keyword><style  face="normal" font="default" size="100%">Metal halide dopant</style></keyword><keyword><style  face="normal" font="default" size="100%">Methanol oxidation</style></keyword><keyword><style  face="normal" font="default" size="100%">polypyrrole</style></keyword><keyword><style  face="normal" font="default" size="100%">XPS</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">15-16</style></number><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE SA</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 564, 1001 LAUSANNE, SWITZERLAND</style></pub-location><volume><style face="normal" font="default" size="100%">159</style></volume><pages><style face="normal" font="default" size="100%">1682-1688</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The polypyrrole (PPy) films were deposited on vacuum metallized substrates by electro-oxidation of pyrrole monomer. These electrodes were then modified with a range of metal halides having different electronegativities. The modified polypyrrole electrodes were employed to investigate electrocatalytic activity towards methanol electrochemical oxidation by means of cyclic voltammetry in 0.1 M HClO(4) as supporting electrolyte. It was found that the electronegativity of the dopant ion incorporated in the PPy film governs the electrocatalytic activity towards methanol oxidation. Among different dopant anions used in the present work, the PPy doped with zirconium chloride gave the highest anodic current of 10 mA cm(-2) at the oxidation potential of methanol. Electrical property and the charge created due to doping in the polymers were measured using X-ray photoelectron spectroscopy (XPS) and Electron spin resonance spectroscopy (ESR). Electrocatalytic activity of the modified electrodes was correlated with various factors obtained from different polymer characterization experiments. The results were explained on the basis of the charge-transfer efficiency at the electrode I electrolyte interface, which was associated with the acceptor state created by the dopant in the semi-conducting polymer. (C) 2009 Elsevier B.V. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">15-16</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.871</style></custom4></record></records></xml>