期刊
CHEMICAL ENGINEERING JOURNAL
卷 211, 期 -, 页码 285-292出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.09.093
关键词
TiO2 nanotubes; Dye-sensitized solar cells; Coumarin 343; Diazonium salts
In this work the synthesis of hybrid electrodes obtained by electrochemical functionalization of nanotubular TiO2 arrays with diazonium salt and subsequent sensitization with Coumarin is proposed. Nanotubes are grown by electrochemical anodization of Ti foils. Anodization is performed at 35 V in ethylene glycol solution and in the presence of fluoride ions. The results obtained in the present study indicate that the functionalization with diazonium allows itself an enhancement of the current yield of the water electrosplitting process. Photocurrents further increased after the sensitization of the samples with Coumarin dye, so indicating good chances for possible applications of the electrodes in DSSC. (C) 2012 Elsevier B.V. All rights reserved.
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