{"id":501,"date":"2015-05-15T00:02:36","date_gmt":"2015-05-15T00:02:36","guid":{"rendered":"http:\/\/chemweb.unl.edu\/cheung\/?p=501"},"modified":"2015-05-26T21:19:50","modified_gmt":"2015-05-26T21:19:50","slug":"influence-of-nanostructured-ceria-support-on-platinum-nanoparticles-for-methanol-electrooxidation-in-alkaline-media","status":"publish","type":"post","link":"http:\/\/chemweb.unl.edu\/cheung\/influence-of-nanostructured-ceria-support-on-platinum-nanoparticles-for-methanol-electrooxidation-in-alkaline-media\/","title":{"rendered":"Influence of nanostructured ceria support on platinum nanoparticles for methanol electrooxidation in alkaline media"},"content":{"rendered":"<p>The catalytic activity of platinum (Pt) nanoparticles (NPs) towards methanol electrooxidation in alkaline media was demonstrated to be dependent on their interactions with their nanostructured ceria support. Pt NPs supported on ceria NPs exhibited a 2-to-5-fold higher catalytic current density\u00a0<em>versus<\/em>\u00a0ceria NRs. Pt NPs deposited onto ceria NRs were disproportionally composed of oxidized species (Pt<sup>2+<\/sup>, Pt<sup>4+<\/sup>\u00a0and Pt\u2013O\u2013M) rather than Pt<sup>0<\/sup>\u00a0while Pt NPs on ceria NPs mainly consisted of Pt<sup>0<\/sup>. Stronger metal-support interactions between Pt NPs and ceria NRs are postulated to induce preferential oxidation of Pt NPs and consequently decrease the catalytic sites and overall activity.<br \/>\nFunding Support: NASA Center of Advanced Nanoscale Materials, NSF-EPSCoR and Army Research Office<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The catalytic activity of platinum (Pt) nanoparticles (NPs) towards methanol electrooxidation in alkaline media was demonstrated to be dependent on their interactions with their nanostructured ceria support. Pt NPs supported on ceria NPs exhibited a 2-to-5-fold higher catalytic current density\u00a0versus\u00a0ceria NRs. Pt NPs deposited onto ceria NRs were disproportionally composed of oxidized species (Pt2+, Pt4+\u00a0and&#8230;<\/p>\n","protected":false},"author":3,"featured_media":577,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"_links":{"self":[{"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/posts\/501"}],"collection":[{"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/comments?post=501"}],"version-history":[{"count":1,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/posts\/501\/revisions"}],"predecessor-version":[{"id":502,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/posts\/501\/revisions\/502"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/media\/577"}],"wp:attachment":[{"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/media?parent=501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/categories?post=501"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chemweb.unl.edu\/cheung\/wp-json\/wp\/v2\/tags?post=501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}