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Titolo:
Dynamics of adsorption and phase formation of p-nitrobenzoic acid at Au(111) surface in solution: A combined surface-enhanced infrared and STM study
Autore:
Noda, H; Wan, LJ; Osawa, M;
Indirizzi:
Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600810 oro, Hokkaido 0600810, Japan Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Hokkaido Univ, Ctr Catalysis Res, Sapporo, Hokkaido 0600811, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600811 oro, Hokkaido 0600811, Japan
Titolo Testata:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
fascicolo: 16, volume: 3, anno: 2001,
pagine: 3336 - 3342
SICI:
1463-9076(2001)3:16<3336:DOAAPF>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCANNING-TUNNELING-MICROSCOPY; IN-SITU STM; RAMAN-SPECTROSCOPY; CYCLIC VOLTAMMETRY; ELECTROCHEMICAL REACTIONS; ABSORPTION SPECTROSCOPY; GOLD(111); FILMS; ELECTRODE; ADLAYERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Osawa, M Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600810 aido 0600810, Japan
Citazione:
H. Noda et al., "Dynamics of adsorption and phase formation of p-nitrobenzoic acid at Au(111) surface in solution: A combined surface-enhanced infrared and STM study", PHYS CHEM P, 3(16), 2001, pp. 3336-3342

Abstract

The adsorption of p-nitrobenzoic acid on Au(111) results in p-nitrobenzoate species bound to the surface through the carboxylate oxygen atoms with a bridging coordination. Potential step time-resolved infrared measurements revealed that the molecule is adsorbed randomly with a near flat orientationwithin a few milliseconds and then gradually reorients to a vertical orientation by forming ordered domains. The orientational phase transition is kinetically controlled and its rate increases as the applied potential increases. The ordered domains have a (3 x 5) stripe-like structure extending along the < 110 > directions of the underlying surface. We propose a model with two molecules per unit cell (surface concentration of 3 x 10(-10) mol cm(-2)) in which the carboxylate oxygen atoms locate in bridge sites.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 06:58:31