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Titolo:
Determination of different local potentials of zero charge of a Pd-Au(111)heterogeneous surface
Autore:
Alvarez, B; Climent, V; Feliu, JM; Aldaz, A;
Indirizzi:
Univ Alicante, Dept Quim Fis, E-03080 Alicante, Spain Univ Alicante Alicante Spain E-03080 t Quim Fis, E-03080 Alicante, Spain
Titolo Testata:
ELECTROCHEMISTRY COMMUNICATIONS
fascicolo: 6, volume: 2, anno: 2000,
pagine: 427 - 430
SICI:
1388-2481(200006)2:6<427:DODLPO>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTROCHEMICAL ADSORPTION BEHAVIOR; HYDROGEN ADSORPTION; CYCLIC VOLTAMMETRY; AU(111) ELECTRODE; STEPPED SURFACES; ACID SOLUTIONS; PALLADIUM; PT(111); GOLD; CO;
Keywords:
local potential of zero charge; Au(111); palladium adlayer; CO displacement; potential of zero total charge; potential of zero free charge;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Feliu, JM Univ Alicante, Dept Quim Fis, Ap 99, E-03080 Alicante, Spain Univ Alicante Ap 99 Alicante Spain E-03080 3080 Alicante, Spain
Citazione:
B. Alvarez et al., "Determination of different local potentials of zero charge of a Pd-Au(111)heterogeneous surface", ELECTROCH C, 2(6), 2000, pp. 427-430

Abstract

Local values of potential of zero charge (pzc) and potential of zero totalcharge (pztc) have been determined for Au( 111) surfaces partially coveredwith palladium at low coverages. The pztc of the palladium islands has been measured with the CO charge displacement procedure. The adsorption of CO only takes place on the palladium-covered domains allowing us to selectively displace the charge residing in this part of the surface. The resulting pztc values of the palladium islands are located around 0.25 V for the entire range of palladium coverages. The pzc of gold-uncovered areas has been determined by identifying the position of the differential capacity minimum (0.52 V). It appears that this pzc is only slightly affected by the presenceof deposited palladium. (C) 2000 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 10:16:05