STUDIES OF THE EFFECT OF BISMUTH ON THE ANODIC-OXIDATION OF LEAD IN SULFURIC-ACID-SOLUTION BY PHOTOCURRENT SPECTROSCOPY

Authors
XIA SJ ZHOU WF
Citation
Sj. Xia et Wf. Zhou, STUDIES OF THE EFFECT OF BISMUTH ON THE ANODIC-OXIDATION OF LEAD IN SULFURIC-ACID-SOLUTION BY PHOTOCURRENT SPECTROSCOPY, Journal of electroanalytical chemistry [1992], 379(1-2), 1994, pp. 423-426
Citations number
23
Categorie Soggetti
Electrochemistry,"Chemistry Analytical
Journal title
Journal of electroanalytical chemistry [1992]
ISSN journal
15726657 → ACNP
Volume
379
Issue
1-2
Year of publication
1994
Pages
423 - 426
Database
ISI
SICI code
Abstract
The anodic film formed on Pb-9 at.% Bi alloy at 0.90 V (vs. Hg/Hg2SO4) in 4.5 M H2SO4 solution (25 degrees C) was studied using photocurrent spectroscopy. The presence of bismuth does not change the band gap en ergy (2.0 eV) or the flat-band potential (-0.28 V vs. Hg/Hg2SO4), but reduces significantly the photocurrent of t-PbO in the anodic film. Th is may be due to the presence of Bi2O3 crystallites in the t-PbO film.