A New Composite Electrocatalyst, TiO2/AC, for Oxygen Reduction in Zinc-Air Battery

Abstract:

Article Preview

A new composite electrocatalyst, well-dispersed TiO2/active carbon (AC), has been assessed with regard to its applicability for oxygen reduction in air electrodes. TiO2/AC powders were prepared by one-step vapor hydrolysis of TiCl4 with active carbon. The structure and composition of the powders were analyzed by means of XRD and FTIR, and the results showed that anatase titanium dioxide of particle size 16.5 nm was produced after calcination at 400 °C. The influences of the preparative parameters of the air electrode on its discharge performance were studied by polarization curve measurements. The terminal voltage of the air battery was maintained at above 1.05 V while the current density of the air electrodes reached 150 mA cm-2. These results show that the composite catalyst has high electrochemical activity for the oxygen reduction reaction.

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

3621-3625

DOI:

10.4028/www.scientific.net/AMR.347-353.3621

Citation:

J. M. Zhang and W. H. Chen, "A New Composite Electrocatalyst, TiO2/AC, for Oxygen Reduction in Zinc-Air Battery", Advanced Materials Research, Vols. 347-353, pp. 3621-3625, 2012

Online since:

October 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.