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Preparation and Characterization of PbO2 on Aluminum Substrate

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Abstract:

The PbO2 film electrodes have been prepared by different electrodeposition process onto aluminum substrate.The electrochemical activity of the electrode for oxygen evolution reaction in 50g•L-1Zn2++150g•L-1H2SO4 solutions have been studied. The results show that the best activity of the electrodes obtained A1/conductive coating was electrodepositing PbO2 in alkaline lead solutions firstly, then plating PbO2 in acidic lead nitrate solutions. This can be attributed to the conductivity of the substrate, the crystal phase structure and property of PbO2. SEM-EDX analysis shows the beta-form, deposited from acidic solutions of Pb(II), has a distorted rutite structure, and the alpha-form, deposited from alkaline solutions, has the spherical cell. The high non- stoichiometry of PbO2 was obtained in alkaline lead solutions.

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Periodical:

Advanced Materials Research (Volumes 399-401)

Pages:

50-54

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.399-401.50

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Online since:

November 2011

Authors:

Bu Ming Chen, Zhong Cheng Guo, Hui Huang

Keywords:

Aluminum Substrate, Electrocatalysis, Oxygen Evolution, PbO2 Anode

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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