{"id":111,"date":"2026-04-16T06:15:06","date_gmt":"2026-04-16T06:15:06","guid":{"rendered":"https:\/\/citations.tools.bio-logic.fr\/?p=111"},"modified":"2026-04-16T06:15:06","modified_gmt":"2026-04-16T06:15:06","slug":"towards-the-elucidation-of-the-high-oxygen-electroreduction-activity-of-ptxy-surface-science-and-electrochemical-studies-of-y-pt111","status":"publish","type":"post","link":"https:\/\/citations.tools.bio-logic.fr\/?p=111","title":{"rendered":"Towards the elucidation of the high oxygen electroreduction activity of Pt<sub>x<\/sub>Y: surface science and electrochemical studies of Y\/Pt(111)"},"content":{"rendered":"<h4>DOI:<\/h4>\n<p><a href=\"https:\/\/doi.org\/10.1039\/c4cp00319e\" target=\"_blank\" rel=\"noopener\">10.1039\/c4cp00319e<\/a><\/p>\n<h4>Authors:<\/h4>\n<p>T. P. Johansson, Elisabeth Therese Ulrikkeholm, P. Hern\u00e1ndez-Fern\u00e1ndez, Mar\u0131\u0301a Escudero-Escribano, Paolo Malacrida, Ifan E. L. Stephens, Ib Chorkendorff<\/p>\n<h4>Abstract:<\/h4>\n<p>We have prepared an yttrium modified Pt(111) single crystal under ultra-high vacuum conditions, simulating a bulk alloy. A Pt overlayer is formed upon annealing the crystal above 800 K. The annealed structure binds CO weaker than Pt(111), with a pronounced peak at 295 K in the temperature programmed desorption of CO. When depositing a large amount of yttrium at 1173 K, a (1.88 \u00d7 1.88)R30\u00b0 structure relative to Pt(111) was observed by low energy electron diffraction. Such an electron diffraction pattern could correspond to a (2 \u00d7 2)R30\u00b0 structure under 6% compressive strain. This structure is in agreement with the structure of the vacancies in a Pt Kagom\u00e9 layer in Pt5Y rotated 30\u00b0 with respect to the bulk of the Pt(111). The Pt overlayer is relatively stable in air; however, after performing oxygen reduction activity measurements in an electrochemical cell, a thick Pt overlayer was measured by the angle resolved X-ray photoelectron spectroscopy depth profile. The activity of the annealed Y\/Pt(111) for the oxygen reduction reaction was similar to that of polycrystalline Pt3Y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DOI: 10.1039\/c4cp00319e Authors: T. P. Johansson, Elisabeth Therese Ulrikkeholm, P. Hern\u00e1ndez-Fern\u00e1ndez, Mar\u0131\u0301a Escudero-Escribano, Paolo Malacrida, Ifan E. L. Stephens, Ib Chorkendorff Abstract: We have prepared an yttrium modified Pt(111) single crystal under ultra-high vacuum conditions, simulating a bulk alloy. A Pt overlayer is formed upon annealing the crystal above 800 K. The annealed structure binds [&hellip;]<\/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-111","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\/111","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=111"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}