Název:
Photoelectrochemical Oxidation of Carboxylic Acids on the Sol-Gel Thin TiO2 Layer Electrode
Autoři:
Morozová, Magdalena ; Klusoň, Petr ; Krýsa, Josef ; Šolcová, Olga Typ dokumentu: Příspěvky z konference Konference/Akce: European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications /6./, Prague (CZ), 2010-06-13 / 2010-06-16
Rok:
2010
Jazyk:
eng
Abstrakt: Heterogeneous photocatalysis is based on the reaction between the light excitated semiconductor and oxidizable compound adsorbed on the catalytic surface. This work reports the photoelectrocatalytic oxidation characteristics of carboxylic acids on the TiO2 sol-gel thin-film electrode by using electrochemical techniques. The influence of the thickness of the films on photoactivity and the various concentrations of oxalic, formic and acetic acid in the supporting electrolyte were investigated. The effect of the used mono- and dicarboxylic acids on the electrode behaviour for possible application as sensors has been also studied. The surface characteristics of TiO2 films were determined by XRD, SEM and AFM analyses and the photoexcitation properties of nanoparticulate layer electrode were determined by cyclic and linear voltammetry, amperometry and open circuit potential (OCP).
Klíčová slova:
photoelectrocatalysis; sol-gel; titanium dioxide Číslo projektu: CEZ:AV0Z40720504 (CEP), GD203/08/H032 (CEP), GA104/09/0694 (CEP) Poskytovatel projektu: GA ČR, GA ČR Zdrojový dokument: Proceedings, ISBN 978-80-7080-750-7
Instituce: Ústav chemických procesů AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0186463