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Titolo:
COMPARATIVE-STUDY BETWEEN BROMINE AND IODINE ADLAYERS ON A POLYCRYSTALLINE GOLD ELECTRODE BY A PIEZOELECTRIC TECHNIQUE
Autore:
UENO K; SEO M;
Indirizzi:
HOKKAIDO UNIV,GRAD SCH ENGN,KITA KU,KITA 13 JO,NISHI 8 CHOME SAPPORO HOKKAIDO 060862 JAPAN
Titolo Testata:
Denki Kagaku Oyobi Kogyo Butsuri Kagaku
fascicolo: 7, volume: 66, anno: 1998,
pagine: 713 - 719
SICI:
0366-9297(1998)66:7<713:CBBAIA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
SURFACE STRESS CHANGE; SULFATE AQUEOUS-SOLUTIONS; PALLADIUM ELECTRODE; AU(111) ELECTRODE; CHLORIDE-IONS; ADSORPTION;
Keywords:
PIEZOELECTRIC TECHNIQUE; POTENTIAL OF ZERO CHARGE; GOLD ELECTRODE; BROMINE AND IODINE ADLAYERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
K. Ueno e M. Seo, "COMPARATIVE-STUDY BETWEEN BROMINE AND IODINE ADLAYERS ON A POLYCRYSTALLINE GOLD ELECTRODE BY A PIEZOELECTRIC TECHNIQUE", Denki Kagaku Oyobi Kogyo Butsuri Kagaku, 66(7), 1998, pp. 713-719

Abstract

The specific adsorption of bromide ions on a polycrystalline gold electrode was investigated by a piezoelectric technique and was compared with that of iodide ions previously reported. The potential of electrocapillary maximum or potential of zero charge (pzc) of the gold electrode could be evaluated from the piezoelectric signal curve. The iodideand bromide concentration dependencies of pzc have indicated that theadsorption order is I- > Br-. The another characteristic potential, E-2 at which a sign-reversal of surface charge density seems to take place, appeared in the potential region where the ordered structure of bromine or iodine adlayer on a single crystal gold was stably observed with STM and SXS. The possible model for the sign-reversal of surface charge density at E-2 was proposed, assuming the structural change or phase change of adlayer followed by the ordered structure formation.

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Documento generato il 07/04/20 alle ore 23:17:24