{"created":"2025-02-21T03:51:01.688908+00:00","id":2007405,"links":{},"metadata":{"_buckets":{"deposit":"8276754a-0b4c-4e3d-8549-af35098e335c"},"_deposit":{"created_by":41,"id":"2007405","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2007405"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02007405","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Production of hydrogen from methanol over Cu/ZnO and Cu/ZnO/Al2O3 catalysts prepared by homogeneous precipitation : Steam reforming and oxidative steam reforming","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shishido, Tetsuya","creatorNameLang":"en"}],"familyNames":[{"familyName":"Shishido","familyNameLang":"en"}],"givenNames":[{"givenName":"Tetsuya","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yamamoto, Yoshihiro","creatorNameLang":"en"}],"familyNames":[{"familyName":"Yamamoto","familyNameLang":"en"}],"givenNames":[{"givenName":"Yoshihiro","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Morioka, Hiroyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Morioka","familyNameLang":"en"}],"givenNames":[{"givenName":"Hiroyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takehira, Katsuomi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Takehira","familyNameLang":"en"}],"givenNames":[{"givenName":"Katsuomi","givenNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186499011":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"Copyright (c) 2006 Elsevier B.V."}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"Hydrogen production","subitem_subject_scheme":"Other"},{"subitem_subject":"steam reforming","subitem_subject_scheme":"Other"},{"subitem_subject":"methanol","subitem_subject_scheme":"Other"},{"subitem_subject":"Cu/ZnO/Al2O3 catalyst","subitem_subject_scheme":"Other"},{"subitem_subject":"homogeneous precipitation","subitem_subject_scheme":"Other"},{"subitem_subject":"570","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Two series of Cu/ZnO and Cu/ZnO/Al2O3 catalysts with varying Cu/Zn ratio have been prepared by the homogeneous precipitation (hp) method using urea hydrolysis. Steam reforming and oxidative steam reforming of methanol were performed using the hp-Cu/Zn-based catalysts for catalytic production of hydrogen. The hp-Cu/ZnO/Al2O3 catalyst showed a higher activity than the hp-Cu/ZnO catalysts. In both cases, the catalytic activity was well correlated with the surface area of Cu metal, and the maximum activity was obtained on the hp-Cu/ZnO/Al2O3 catalyst with the Cu/Zn ratio of 1/1. Although a large amount of Cu+ was detected on the surface of the Cu/Zn-based catalysts after the reduction at 260 °C, no obvious correlation was observed between the activity and the surface amount of Cu+. The hp-Cu/ZnO/Al2O3 catalyst showed a high and stable activity not only for steam reforming but also for oxidative steam reforming of methanol, and the latter reaction effectively produced H2 with a low CO selectivity at a low temperature around 200 °C. It was confirmed by the temperature-programmed desorption experiments that CH3OH was first dehydrogenated to HCHO, which then underwent a nucleophilic attack of H2O to form HCOOH, followed by the decomposition to H2 and CO2 on the hp-Cu/Zn-based catalysts.","subitem_description_language":"en"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"Elsevier Science B.V."}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_source_identifier":"1381-1169","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"AA11036242","subitem_source_identifier_type":"NCID"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"185"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-05-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1-2","bibliographicPageEnd":"194","bibliographicPageStart":"185","bibliographicVolumeNumber":"268","bibliographic_titles":[{"bibliographic_title":"Journal of Molecular Catalysis A:Chemical"},{"bibliographic_title":"Journal of Molecular Catalysis A:Chemical"}]}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_b1a7d7d4d402bcce","subitem_version_type":"AO"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.molcata.2006.12.018","subitem_relation_type_select":"DOI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1016/j.molcata.2006.12.018","subitem_relation_type_select":"DOI"}}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2023-03-18"}],"displaytype":"simple","filename":"JMolCatA_268-1-2_185.pdf","filesize":[{"value":"945.8 KB"}],"mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2007405/files/JMolCatA_268-1-2_185.pdf"},"version_id":"6cf74400-d40a-49a2-a11a-12aeab36a65c"}]},"item_1732771732025":{"attribute_name":"旧ID","attribute_value":"20599"},"item_title":"Production of hydrogen from methanol over Cu/ZnO and Cu/ZnO/Al2O3 catalysts prepared by homogeneous precipitation : Steam reforming and oxidative steam reforming","item_type_id":"40003","owner":"41","path":["1730444907710"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-18"},"publish_date":"2023-03-18","publish_status":"0","recid":"2007405","relation_version_is_last":true,"title":["Production of hydrogen from methanol over Cu/ZnO and Cu/ZnO/Al2O3 catalysts prepared by homogeneous precipitation : Steam reforming and oxidative steam reforming"],"weko_creator_id":"41","weko_shared_id":-1},"updated":"2025-02-21T09:54:10.711809+00:00"}