10.1149\/1.2220793<\/a><\/p>\nAuthors:<\/h4>\n
Ibrahim Hashi Omar, Hans-J\u00fcrgen Pauling, K. J\u00fcttner<\/p>\n
Abstract:<\/h4>\n
The underpotential deposition of copper on Au(111) single\u2010crystal substrate was studied using voltammetric and rotating ring\u2010disk electrode measurements (RRDE) in sulfuric acid solutions of different Cu2+ concentrations at constant pH 1 and . Cyclic voltammograms and charge isotherms indicate that the ideal metal\u2010monolayer model, characterized by an electrosorption valency value of , is valid only at high degree of coverage at low underpotentials. Significant deviation from the ideal behavior was observed at high underpotentials, where the electrosorption valency was found to be . This can be interpreted in terms of a partial discharge of Cu2+to , the adsorption of which is stabilized by co\u2010adsorption of sulfate ions. Transfer of the into the solution could only be detected in the transition range from underpotential to overpotential copper deposition using RRDE measurements. The kinetics of the formation is mainly determined by the charge\u2010transfer reaction , rather than by the disproportionation reaction .<\/p>\n","protected":false},"excerpt":{"rendered":"
DOI: 10.1149\/1.2220793 Authors: Ibrahim Hashi Omar, Hans-J\u00fcrgen Pauling, K. J\u00fcttner Abstract: The underpotential deposition of copper on Au(111) single\u2010crystal substrate was studied using voltammetric and rotating ring\u2010disk electrode measurements (RRDE) in sulfuric acid solutions of different Cu2+ concentrations at constant pH 1 and . Cyclic voltammograms and charge isotherms indicate that the ideal metal\u2010monolayer model, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1119","post","type-post","status-publish","format-standard","hentry","category-blurev-rde-rrde"],"_links":{"self":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/1119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1119"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/1119\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}