{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670318720656512.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1039/c0jm00973c"}},{"identifier":{"@type":"URI","@value":"http://pubs.rsc.org/en/content/articlepdf/2010/JM/C0JM00973C"}}],"dc:title":[{"@value":"Mesoporous PdCo sponge-like nanostructure synthesized by electrodeposition and dealloying for oxygen reduction reaction"}],"description":[{"notation":[{"@value":"A mesoporous PdCo sponge-like nanostructure was successfully synthesized by the combination of electrodeposition and dealloying, and was evaluated as a catalyst for the oxygen reduction reaction of fuel cells. The synthesized film had a sponge-like mesoporosity consisting of 5–30 nm thick ligaments with pores of tens of nanometers. Its porosity was estimated to be ca. 62%, suggesting that the oxygen transport in the film was smooth. The resultant composition was Pd93Co7, whose crystalline phase was determined to be a solid solution of Pd92Co8 by X-ray diffractometry. This degree of alloying is known to induce the most desirable lattice contraction into a Pd catalyst for the oxygen reduction reaction. Actually, the mesoporous PdCo catalyst had a higher specific activity than the Pt catalyst in the potential range of <0.85 V vs. SHE, i.e., the potential range of interest for fuel cell operation. This fascinatingly higher catalytic activity was attributable to the preferable reaction mechanism, because the PdCo electrode had a lower Tafel slope (43 mV decade−1) than a typical Pt electrode (71 mV decade−1)."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670318720656513","@type":"Researcher","foaf:name":[{"@value":"Satoshi Tominaka"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670318720656514","@type":"Researcher","foaf:name":[{"@value":"Tomoya Hayashi"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670318720656512","@type":"Researcher","foaf:name":[{"@value":"Yusuke Nakamura"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670318720656515","@type":"Researcher","foaf:name":[{"@value":"Tetsuya Osaka"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09599428"},{"@type":"EISSN","@value":"13645501"}],"prism:publicationName":[{"@value":"Journal of Materials Chemistry"}],"dc:publisher":[{"@value":"Royal Society of Chemistry (RSC)"}],"prism:publicationDate":"2010","prism:volume":"20","prism:number":"34","prism:startingPage":"7175"},"reviewed":"false","url":[{"@id":"http://pubs.rsc.org/en/content/articlepdf/2010/JM/C0JM00973C"}],"createdAt":"2010-07-27","modifiedAt":"2024-04-17","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002214425905408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Layer‐by‐Layer Motif Architectures: Programmed Electrochemical Syntheses of Multilayer Mesoporous Metallic Films with Uniformly Sized Pores"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002214465860608","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Electrochemical Deposition of Mesoporous Pt–Au Alloy Films in Aqueous Surfactant Solutions: Towards a Highly Sensitive Amperometric Glucose 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