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Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4

V. D. Jović ; Institute for Multidisciplinary Research, 11030 Belgrade, P. O. Box 33, Serbia

Puni tekst: engleski, pdf (631 KB) str. 11-22 preuzimanja: 253* citiraj
APA 6th Edition
Jović, V.D. (2009). Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4. Chemical and Biochemical Engineering Quarterly, 23 (1), 11-22. Preuzeto s https://hrcak.srce.hr/34601
MLA 8th Edition
Jović, V. D.. "Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4." Chemical and Biochemical Engineering Quarterly, vol. 23, br. 1, 2009, str. 11-22. https://hrcak.srce.hr/34601. Citirano 26.08.2019.
Chicago 17th Edition
Jović, V. D.. "Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4." Chemical and Biochemical Engineering Quarterly 23, br. 1 (2009): 11-22. https://hrcak.srce.hr/34601
Harvard
Jović, V.D. (2009). 'Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4', Chemical and Biochemical Engineering Quarterly, 23(1), str. 11-22. Preuzeto s: https://hrcak.srce.hr/34601 (Datum pristupa: 26.08.2019.)
Vancouver
Jović VD. Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4. Chemical and Biochemical Engineering Quarterly [Internet]. 2009 [pristupljeno 26.08.2019.];23(1):11-22. Dostupno na: https://hrcak.srce.hr/34601
IEEE
V.D. Jović, "Differential Capacity of Bromide Anions Adsorption onto Ag(100) in the Absence, and onto Ag(poly) in the Presence of NaClO4", Chemical and Biochemical Engineering Quarterly, vol.23, br. 1, str. 11-22, 2009. [Online]. Dostupno na: https://hrcak.srce.hr/34601. [Citirano: 26.08.2019.]

Sažetak
In this work, the adsorption of bromide anions onto Ag(100) and Ag(poly) in the absence and presence of NaClO4 was investigated. The cyclic voltammetry, EIS and Cdiff vs. E measurement results were analyzed. For the determination of the adsorption parameters,
the equivalent circuit containing constant phase element (CPE) instead of the double layer capacity (Cdl) and new equations for the analysis of the anion adsorption, based on a different definition of the CPE, have been developed and used. It was shown that
the proposed equivalent circuit and corresponding equations for the differential capacity (Cdiff) as a function of frequency (ω) can successfully be applied in the investigated systems. Excellent agreement between the cyclic voltammograms (CVs) and the Cdiff vs. E curves recorded at frequencies lower than 10 Hz has been detected. The homogeneity of the charge distribution over the real single crystal surfaces, as well as other parameters of the adsorption process were found to change with the potential. In the presence of the supporting (“non-adsorbing”) electrolyte (0.1 M NaClO4) diffusion-like phenomenon was detected and ascribed to the slow step in exchanging anions adsorbed in the inner Helmholtz plane.

Ključne riječi
Bromide anions adsorption; differential capacity; CPE; surface homogeneity

Hrčak ID: 34601

URI
https://hrcak.srce.hr/34601

Posjeta: 424 *