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Dinitrogen photofixation properties of different titanium oxides in conducting polymer/titanium oxide hybrid systems

Paper ID Volume ID Publish Year Pages File Format Full-Text
48424 46506 2008 8 PDF Available
Title
Dinitrogen photofixation properties of different titanium oxides in conducting polymer/titanium oxide hybrid systems
Abstract

Titanium oxide layers prepared by hard (rutile and anatase types) and soft processes (anodic amorphous oxides prepared in an aqueous phosphoric, TiOxw, and a dichloromethane/electrolyte solution, TiOxo) were brought into contact with the ClO4−-doped poly(3-methylthiophene) (P3MeT) film, and their ability to photofix atmospheric dinitrogen was compared. The comparisons revealed that the latter junctions using amorphous oxides produced larger amount of N2-fixation products than the former two junctions and that the P3MeT/TiOxw junction exhibited a higher N2-fixation rate than the P3MeT/TiOxo cell. The TiOxw and TiOxo layers were characterized by transmission electron microscopic observations, X-ray electron dispersive analysis, and selected area electron diffraction measurements, and the higher activity of the TiOxw layer was rationalized on the basis of the contact potential difference measurements. Additionally, the dependences of the N2-fixation yield on the photoirradiation time, P3MeT film thickness, and anodizing potential during the formation of the TiOxw were investigated using the most active P3MeT/TiOxw junction cell.

Keywords
Nitrogen fixation; Conducting polymers; Titanium oxide; Anodic titanium oxide; Light-to-chemical energy conversion
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Dinitrogen photofixation properties of different titanium oxides in conducting polymer/titanium oxide hybrid systems
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 79, Issue 1, 21 February 2008, Pages 81–88
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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Any Questions? feel free to contact us