Issue 20, 2011
From the journal:

Physical Chemistry Chemical Physics

A novel reaction model for the electrical conductivity of ultra-thin TiO2 films in H2†

Chi Lu,*a   Zhi Chena  and  Ping Yub  

* Corresponding authors

a Department of Electrical and Computer Engineering and Center for Nanoscale Science and Engineering, University of Kentucky, Lexington, USA
E-mail: chi_lu_uky@yahoo.com

b Metabolism Branch, National Cancer Institute, National Institutes of Health, Bethesda, USA

Abstract

Two ultra-thin TiO2 films with platinum electrodes were prepared on a porous anodic aluminium oxide thick layer and a ceramic plate, respectively. It was found that in both TiO2 films the conductance was almost proportional to the fourth root of the H2 concentration in N2 ambient at 500 °C. A quantitative model based on the spill-over mechanism is established to describe this novel correlation.

Graphical abstract: A novel reaction model for the electrical conductivity of ultra-thin TiO2 films in H2

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Article information

DOI
https://doi.org/10.1039/C1CP20180H
Article type
Communication
Submitted
20 Jan 2011
Accepted
31 Mar 2011
First published
18 Apr 2011

Phys. Chem. Chem. Phys., 2011,13, 9131-9133

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A novel reaction model for the electrical conductivity of ultra-thin TiO2 films in H2

C. Lu, Z. Chen and P. Yu, Phys. Chem. Chem. Phys., 2011, 13, 9131 DOI: 10.1039/C1CP20180H

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