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Titolo:
Electrodeposition dynamics: electrochemical and X-ray scattering studies
Autore:
Herrero, E; Buller, LJ; Li, J; Finnefrock, AC; Salomon, AB; Alonso, C; Brock, JD; Abruna, HD;
Indirizzi:
Cornell Univ, Dept Chem, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 ll Univ, Dept Chem, Ithaca, NY 14853 USA Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 h Appl & Engn Phys, Ithaca, NY 14853 USA Cornell Univ, Ctr Mat Sci, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 Univ, Ctr Mat Sci, Ithaca, NY 14853 USA Univ Autonoma Madrid, Dept Quim Fis Aplicada, E-28049 Madrid, Spain Univ Autonoma Madrid Madrid Spain E-28049 plicada, E-28049 Madrid, Spain
Titolo Testata:
ELECTROCHIMICA ACTA
fascicolo: 6-7, volume: 44, anno: 1998,
pagine: 983 - 992
SICI:
0013-4686(1998)44:6-7<983:EDEAXS>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCANNING-TUNNELING-MICROSCOPY; SULFURIC-ACID-SOLUTIONS; ATOMIC-FORCE MICROSCOPY; SINGLE-CRYSTAL SURFACE; METAL-ION ADSORPTION; UNDERPOTENTIAL DEPOSITION; ANION ADSORPTION; ADSORBING SUBSTANCES; AU(111) ELECTRODE; COPPER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Abruna, HD Cornell Univ, Dept Chem, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 pt Chem, Ithaca, NY 14853 USA
Citazione:
E. Herrero et al., "Electrodeposition dynamics: electrochemical and X-ray scattering studies", ELECTR ACT, 44(6-7), 1998, pp. 983-992

Abstract

Studies of the electrodeposition dynamics of underpotential deposition (UPD) processes based on electrochemical and in-situ surface X-ray scattering studies are presented. The studies focus on the UPD of Hg on Au(111) in sulfate media, and Cu UPD on Pt(111) in sulfate and chloride media. In the first case it is shown that Hg UPD on Au(111) in sulfuric acid follows a progressive nucleation mechanism which involves various surface structures. In the case of Cu UPD on Pt(111), the process appears to follow an instantaneous nucleation mechanism in both sulfate and chloride media. Time-resolved surface X-ray scattering studies of Cu UPD on Pt(111) in the presence of chloride demonstrate that the electrochemical relaxation and the achievement oflong range order can take place on significantly different time scales. Analysis of time-resolved surface X-ray scattering data allows for the study of the dynamics of island growth. (C) 1998 Elsevier Science Ltd, All rightsreserved.

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Documento generato il 03/04/20 alle ore 07:58:55