{"@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/1363670319624555136.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1006/jcat.1997.1752"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0021951797917528?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0021951797917528?httpAccept=text/plain"}}],"dc:title":[{"@value":"Supported Au Catalysts Prepared from Au Phosphine Complexes and As-Precipitated Metal Hydroxides: Characterization and Low-Temperature CO Oxidation"}],"description":[{"notation":[{"@value":"Supported Au catalysts were prepared by attaching Au phosphinecomplexes, Au(PPh3)(NO3) (1) and [Au9(PPh3)8](NO3)3(2), on as-precipitated metal hydroxidesM(OH)x*(x*, as-precipitated;M=Mn2+, Co2+, Fe3+, Ni2+, Zn2+, Mg2+, Cu2+, Ti4+, Ce4+, and La3+), followed by temperature-programmed calcination in a flow of dry air. The obtained Au catalysts showed high catalytic activities in low-temperature CO oxidation. Among the obtained Au catalysts1/Mn(OH)x* and1/Co(OH)x* were most highly active even at 203 K.1/Fe(OH)3* and1/Ti(OH)4* also catalyzed CO oxidation at low temperatures 203–273 K, whereas1/Fe2O3and 1/TiO2prepared by supporting1on conventional Fe2O3and TiO2showed negligible activity under the similar reactionconditions. It was estimated by TEM and XRD that the mean diameter of Au particles in1/Fe(OH)3* was about 2.9 nm, which was about 10 times smaller than that for1/Fe2O3. EXAFS for1/Ti(OH)4* revealed that the coordination number of Au–Au bond was 8–10, while that for1/TiO2was 11.0, which also indicates that Au particle size for1/Ti(OH)4* is smaller thanthat for1/TiO2. The catalysts obtained by attaching the Au complexes on commercially available metal hydroxides also showednegligible activity for the low-temperature CO oxidation underidentical conditions. These results demonstrate that supportedAu catalysts with small Au particles, tremendously active for thelow-temperature CO oxidation, can be prepared by attaching theAu phosphine complexes on the as-precipitated metal hydroxides.Sodium cations exhibited positive effect on the Au catalysis,whereas chloride anions drastically decreased the CO oxidation activity."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670319624555138","@type":"Researcher","foaf:name":[{"@value":"Youzhu Yuan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319624555140","@type":"Researcher","foaf:name":[{"@value":"Anguelina P. Kozlova"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319624555136","@type":"Researcher","foaf:name":[{"@value":"Kiyotaka Asakura"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319624555139","@type":"Researcher","foaf:name":[{"@value":"Huilin Wan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319624555141","@type":"Researcher","foaf:name":[{"@value":"Khirui Tsai"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670319624555137","@type":"Researcher","foaf:name":[{"@value":"Yasuhiro Iwasawa"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00219517"}],"prism:publicationName":[{"@value":"Journal of Catalysis"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1997-08","prism:volume":"170","prism:number":"1","prism:startingPage":"191","prism:endingPage":"199"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0021951797917528?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0021951797917528?httpAccept=text/plain"}],"createdAt":"2002-10-07","modifiedAt":"2019-12-17","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=540","dc:title":"540"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050025031480487680","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"CO oxidation on h-BN supported Au atom"}]},{"@id":"https://cir.nii.ac.jp/crid/1360002219104777216","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temporal Analysis of Products (TAP) Study of the Adsorption of CO, O2, and CO2 on a Au/Ti(OH)4* Catalyst"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004231440564736","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Polarization-Dependent Total-Reflection Fluorescence X-ray Absorption Fine Structure for 3D Structural Determination and Surface Fine Tuning"}]},{"@id":"https://cir.nii.ac.jp/crid/1360025429438686592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Promotional Effects of Heat Treatments on Pt–CeO<sub>2</sub> Nanocatalyst Derived via Hydrothermal Leaching for CO Oxidation"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681435751808","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"金ナノ粒子の触媒作用"},{"@language":"en","@value":"Catalysis by Gold Nanoparticles"},{"@language":"ja-Kana","@value":"キン ナノ リュウシ ノ ショクバイ サヨウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1523951029716988160","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Characterization of CO- and H2-Adsorbed Au6Pt-Phosphine Clusters Supported on SiO2 by EXAFS,TPD,and FTIR"},{"@language":"ja-Kana","@value":"Characterization of CO- and H2-Adsorbed Au6Pt-Phosphine Clusters Supported on SiO2 by EXAFS TPD and FTIR"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1006/jcat.1997.1752"},{"@type":"OPENAIRE","@value":"doi_dedup___::055be4e790071343e792ee10a2ec5ab0"},{"@type":"CROSSREF","@value":"10.1007/s11244-013-0134-y_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"},{"@type":"CROSSREF","@value":"10.1021/acsanm.4c01856_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"},{"@type":"CROSSREF","@value":"10.1063/1.4774216_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"},{"@type":"CROSSREF","@value":"10.1380/jsssj.26.578_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"},{"@type":"CROSSREF","@value":"10.1246/bcsj.74.255_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"},{"@type":"CROSSREF","@value":"10.1246/bcsj.72.2643_references_DOI_1r8PPVx4iE29I3MAQsSYhZW1ow5"}]}