{"created":"2025-02-21T03:54:11.498445+00:00","id":2007509,"links":{},"metadata":{"_buckets":{"deposit":"89af8618-6ebc-41e6-a9f6-fd59034fa2cb"},"_deposit":{"created_by":41,"id":"2007509","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2007509"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02007509","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Catalytic effect of nano-particle 3d-transition metals on hydrogen storage properties in magnesium hydride MgH2 prepared by mechanical milling","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hanada, Nobuko","creatorNameLang":"en"}],"familyNames":[{"familyName":"Hanada","familyNameLang":"en"}],"givenNames":[{"givenName":"Nobuko","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ichikawa, Takayuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Ichikawa","familyNameLang":"en"}],"givenNames":[{"givenName":"Takayuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Fujii, Hironobu","creatorNameLang":"en"}],"familyNames":[{"familyName":"Fujii","familyNameLang":"en"}],"givenNames":[{"givenName":"Hironobu","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) 2003 Elsevier B.V."}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"Hydrogen storage materials","subitem_subject_scheme":"Other"},{"subitem_subject":"Magnesium hydride","subitem_subject_scheme":"Other"},{"subitem_subject":"Mechanical milling","subitem_subject_scheme":"Other"},{"subitem_subject":"catalytic effect","subitem_subject_scheme":"Other"},{"subitem_subject":"nano-particle metal","subitem_subject_scheme":"Other"},{"subitem_subject":"420","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"We examined the catalytic effect of nano-particle 3d-transition metals on hydrogen desorption (HD) properties of MgH2 prepared by mechanical ball milling method. All the MgH2 composites prepared by adding a small amount of nano-particle Fenano, Conano, Ninano and Cunano metals and by ball milling for 2h showed much better HD properties than the pure ball-milled MgH2 itself. Especially, the 2 mol% Ninano-doped MgH2 composite prepared by soft milling for a short milling time of 15 min under a slow milling revolution speed of 200 rpm shows the most superior hydrogen storage properties: A large amount of hydrogen (~6.5 wt.%) is desorbed in the temperature range from 150 to 250 ºC at a heating rate of 5 ºC /min under He gas flow with no partial pressure of hydrogen. The EDX micrographs corresponding to Mg and Ni elemental profiles indicated that nano-particle Ni metals as catalyst homogeneously dispersed on the surface of MgH2. In addition, it was confirmed that the product revealed good reversible hydriding/dehydriding cycles even at 150 ºC. The hydrogen desorption kinetics of catalyzed and non-catalyzed MgH2 could be understood by a modified first order reaction model, in which the surface condition was taken into account.","subitem_description_language":"en"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"Elsevier 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":"0022-3697","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"AA00704949","subitem_source_identifier_type":"NCID"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"535"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2-3","bibliographicPageEnd":"539","bibliographicPageStart":"535","bibliographicVolumeNumber":"65","bibliographic_titles":[{"bibliographic_title":"Journal of Physics and Chemistry of Solids"},{"bibliographic_title":"Journal of Physics and Chemistry of Solids"}]}]},"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.jpcs.2003.08.039","subitem_relation_type_select":"DOI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1016/j.jpcs.2003.08.039","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":"JPCS_65_2-3_535.pdf","filesize":[{"value":"521.0 KB"}],"mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2007509/files/JPCS_65_2-3_535.pdf"},"version_id":"fc81c00f-c966-4087-a527-966432b3952e"}]},"item_1732771732025":{"attribute_name":"旧ID","attribute_value":"20048"},"item_title":"Catalytic effect of nano-particle 3d-transition metals on hydrogen storage properties in magnesium hydride MgH2 prepared by mechanical milling","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":"2007509","relation_version_is_last":true,"title":["Catalytic effect of nano-particle 3d-transition metals on hydrogen storage properties in magnesium hydride MgH2 prepared by mechanical milling"],"weko_creator_id":"41","weko_shared_id":-1},"updated":"2025-02-21T10:06:50.059389+00:00"}