{"@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/1361699996225320576.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.mcat.2018.05.018"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S2468823118302074?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S2468823118302074?httpAccept=text/plain"}}],"dc:title":[{"@value":"Stable Cu-Ni/SiO 2  catalysts prepared by using citric acid-assisted impregnation for vapor-phase hydrogenation of levulinic acid"}],"description":[{"notation":[{"@value":"Abstract   Cu-Ni/SiO2 catalyst was developed by impregnation assisted with citric acid for the vapor-phase hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL). The prepared catalysts were characterized by using X-ray powder diffraction (XRD), transmission electron microscope (TEM), temperature-programed reduction, thermogravimetry analysis, and X-ray fluorescence analysis. The XRD analysis and the TEM observation of the catalyst samples indicate that the usage of citric acid in the preparation process of impregnation improved the dispersion of Cu and Ni metal on SiO2. A Cu-Ni/SiO2 catalyst with Cu loading of 4 wt.% and Ni of 16 wt.% showed the best performance in the hydrogenation of LA to GVL under ambient H2 pressure at a high weight hourly space velocity (WHSV) of 13.2 h−1 and 250 °C: the conversion was 98.2% and the GVL selectivity was 97.6%. The catalyst prepared by citric acid-assisted impregnation showed the resistance to catalyst deactivation."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699996225320448","@type":"Researcher","foaf:name":[{"@value":"Rei Yoshida"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996225320451","@type":"Researcher","foaf:name":[{"@value":"Daolai Sun"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996225320449","@type":"Researcher","foaf:name":[{"@value":"Yasuhiro Yamada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996225320450","@type":"Researcher","foaf:name":[{"@value":"Satoshi Sato"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"24688231"}],"prism:publicationName":[{"@value":"Molecular Catalysis"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2018-07","prism:volume":"454","prism:startingPage":"70","prism:endingPage":"76"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S2468823118302074?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S2468823118302074?httpAccept=text/plain"}],"createdAt":"2018-05-23","modifiedAt":"2018-06-14","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360017282455943936","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Vapor-phase dehydrogenation of 1-decanol to decanal over Cu/SiO2 catalyst prepared by organic additives-assisted impregnation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584339767732480","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Efficient conversion of glycerol into 1,2-propanediol over Cu/SiO2 catalyst prepared through impregnation assisted with crown ether"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584340521070464","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Vapor-phase dehydrogenation of 3-methyl-2-butanol over silica-supported Cu-catalyst prepared by mannitol-assisted impregnation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584340521088384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Chemoselective vapor-phase hydrogenation of 6-methyl-5-hepten-2-one over Cu/SiO2 catalyst prepared by organic additive-assisted impregnation"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367085352320","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Highly active Ni/SiO2 catalyst prepared through citric acid-assisted impregnation for the hydrogenation of acetoin to 2,3-butanediol"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/j.mcat.2018.05.018"},{"@type":"OPENAIRE","@value":"doi_dedup___::257172f4447e8e319267964a2bcd25d9"},{"@type":"CROSSREF","@value":"10.1016/j.apcata.2023.119079_references_DOI_OgNdWsh55Jzyov3PGdtm1lcRxCl"},{"@type":"CROSSREF","@value":"10.1246/bcsj.20210447_references_DOI_OgNdWsh55Jzyov3PGdtm1lcRxCl"},{"@type":"CROSSREF","@value":"10.1093/chemle/upae037_references_DOI_OgNdWsh55Jzyov3PGdtm1lcRxCl"},{"@type":"CROSSREF","@value":"10.1093/bulcsj/uoae001_references_DOI_OgNdWsh55Jzyov3PGdtm1lcRxCl"},{"@type":"CROSSREF","@value":"10.1093/chemle/upad019_references_DOI_OgNdWsh55Jzyov3PGdtm1lcRxCl"}]}