Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
A STUDY OF THE REDUCTION PROCESS OF ANODIC PBO2 FILM ON PB IN SULFURIC-ACID-SOLUTION
Autore:
CAI WB; WAN YQ; LIU HT; ZHOU WF;
Indirizzi:
FUDAN UNIV,DEPT CHEM SHANGHAI 200433 PEOPLES R CHINA FUDAN UNIV,DEPT CHEM SHANGHAI 200433 PEOPLES R CHINA
Titolo Testata:
Journal of electroanalytical chemistry [1992]
fascicolo: 1-2, volume: 387, anno: 1995,
pagine: 95 - 100
Fonte:
ISI
Lingua:
ENG
Soggetto:
LINEAR SWEEP VOLTAMMETRY; LEAD DIOXIDE; PHOTOCURRENT SPECTROSCOPY; ELECTRODE; CORROSION; POTENTIALS; OXIDATION; H2SO4;
Keywords:
PBO2; REDUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
W.B. Cai et al., "A STUDY OF THE REDUCTION PROCESS OF ANODIC PBO2 FILM ON PB IN SULFURIC-ACID-SOLUTION", Journal of electroanalytical chemistry [1992], 387(1-2), 1995, pp. 95-100

Abstract

The reduction process of the anodic PbO2 film on lead formed at 1.4 Vvs. Hg\Hg2SO4 in 4.5 M H2SO4 solution was investigated using chronoamperometry, the photocurrent method and X-ray diffractometry. The experimental results show that most of the beta-PbO2 and part of the alpha-PbO2 in the film can be converted to PbSO4 in about 1 s between 0.9 and 1.0 V vs. Hg\Hg2SO4. At a potential of 0.8 V vs. Hg\Hg2SO4 or less, a slower and more difficult conversion of alpha-PbO2 to alpha-PbOx (1<x<1.4) can be detected by the photoeffects of alpha-PbOx. The alpha-PbOx is gradually converted to t-PbO, which is completed in 75 min during the reduction at 0.6 V vs. Hg\Hg2SO4.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 10:44:10