The formation and electroreduction of silver sulfide films at a silver metal electrode

Maria Hepel; Stanley Bruckenstein; G. C. Tang

doi:10.1016/0022-0728(89)85007-7

The formation and electroreduction of silver sulfide films at a silver metal electrode

Maria Hepel
, Stanley Bruckenstein
, G. C. Tang

Chemistry

SUNY Potsdam
SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The anodic formation of Ag₂S films at a polycrystalline silver electrode in alkaline solution containing hydrosulfide was studied using a rotating ring-disk (RRDE) electrode. We report for the first time on the occurrence of multistate sulfide adsorption (UPD of sulfide). The total surface coverage in the UPD region is ~ 0.5, which corresponds to an adsorbate having the stoichiometry of Ag₂S_ads. Three distinct pairs of oxidation/reduction current peaks were found and are attributed to differences in sulfide adsorption energies at three sites on the silver electrode. Inconsistencies among published reaction mechanisms for silver sulfide formation are discussed.

Original language	English
Pages (from-to)	389-400
Number of pages	12
Journal	Journal of Electroanalytical Chemistry
Volume	261
Issue number	2 PART 2
DOIs	https://doi.org/10.1016/0022-0728(89)85007-7
State	Published - Apr 15 1989

Access to Document

10.1016/0022-0728(89)85007-7

Cite this

@article{00d00d6a56d546d8a4b80d5e4ffa398e,

title = "The formation and electroreduction of silver sulfide films at a silver metal electrode",

abstract = "The anodic formation of Ag2S films at a polycrystalline silver electrode in alkaline solution containing hydrosulfide was studied using a rotating ring-disk (RRDE) electrode. We report for the first time on the occurrence of multistate sulfide adsorption (UPD of sulfide). The total surface coverage in the UPD region is \textasciitilde{} 0.5, which corresponds to an adsorbate having the stoichiometry of Ag2Sads. Three distinct pairs of oxidation/reduction current peaks were found and are attributed to differences in sulfide adsorption energies at three sites on the silver electrode. Inconsistencies among published reaction mechanisms for silver sulfide formation are discussed.",

author = "Maria Hepel and Stanley Bruckenstein and Tang, \{G. C.\}",

year = "1989",

month = apr,

day = "15",

doi = "10.1016/0022-0728(89)85007-7",

language = "English",

volume = "261",

pages = "389--400",

journal = "Journal of Electroanalytical Chemistry",

issn = "0022-0728",

publisher = "Elsevier B.V.",

number = "2 PART 2",

}

TY - JOUR

T1 - The formation and electroreduction of silver sulfide films at a silver metal electrode

AU - Hepel, Maria

AU - Bruckenstein, Stanley

AU - Tang, G. C.

PY - 1989/4/15

Y1 - 1989/4/15

N2 - The anodic formation of Ag2S films at a polycrystalline silver electrode in alkaline solution containing hydrosulfide was studied using a rotating ring-disk (RRDE) electrode. We report for the first time on the occurrence of multistate sulfide adsorption (UPD of sulfide). The total surface coverage in the UPD region is ~ 0.5, which corresponds to an adsorbate having the stoichiometry of Ag2Sads. Three distinct pairs of oxidation/reduction current peaks were found and are attributed to differences in sulfide adsorption energies at three sites on the silver electrode. Inconsistencies among published reaction mechanisms for silver sulfide formation are discussed.

AB - The anodic formation of Ag2S films at a polycrystalline silver electrode in alkaline solution containing hydrosulfide was studied using a rotating ring-disk (RRDE) electrode. We report for the first time on the occurrence of multistate sulfide adsorption (UPD of sulfide). The total surface coverage in the UPD region is ~ 0.5, which corresponds to an adsorbate having the stoichiometry of Ag2Sads. Three distinct pairs of oxidation/reduction current peaks were found and are attributed to differences in sulfide adsorption energies at three sites on the silver electrode. Inconsistencies among published reaction mechanisms for silver sulfide formation are discussed.

UR - https://www.scopus.com/pages/publications/0041612379

U2 - 10.1016/0022-0728(89)85007-7

DO - 10.1016/0022-0728(89)85007-7

M3 - Article

AN - SCOPUS:0041612379

SN - 0022-0728

VL - 261

SP - 389

EP - 400

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 2 PART 2

ER -

The formation and electroreduction of silver sulfide films at a silver metal electrode

Abstract

Access to Document

Other files and links

Fingerprint

Cite this