Photo-electrochemical reduction of carbon dioxide on the self-organized TiO2 nanotube layers

C. C. Lin, S. K. Liu, Y. S. Chen, H. F. Li, J. C. Lin, S. L. Lee, G. Lerondel, Y. F. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Photo-electrochemical reduction of carbon dioxide on the porous films dispersed with self-organized TiO2 nanotubes has been investigated in this work. The porous films were prepared by anodizing a titanium sheet in the electrolyte containing fluoride. Post annealing at 450 °C for 1 h, the crystal of the film turned from amorphous to anatase. The film was dipped in 1 M nitrate solution of Ag(I), Cu(II) and Fe(III), respectively, dried and irradiated by UV-light to load different impurity. Electrochemical tests including cyclic voltammetry (CV), potentiostatic reduction and electrochemical impedance spectroscopy (EIS) were conducted to estimate the catalytic activity of the films. The catalytic activity is higher for the films after compared with the as-anodized films. The catalytic activity of the porous film was enhanced with loading different impurities. The activity increases in the order: load-free < Ag-loaded < Cu-loaded < Fe-loaded films.

Original languageEnglish
Title of host publicationNanotechnology (General) - 216th ECS Meeting
PublisherElectrochemical Society Inc.
Number of pages12
ISBN (Electronic)9781566777971
ISBN (Print)9781566777971
StatePublished - 2009

Publication series

NameECS Transactions
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737


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