{"created":"2025-02-21T03:43:42.855060+00:00","id":2007173,"links":{},"metadata":{"_buckets":{"deposit":"0cbe2ae5-ca3a-4fed-8f4f-a1544a32b635"},"_deposit":{"created_by":41,"id":"2007173","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2007173"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02007173","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Remarkable improvement of hydrogen sorption kinetics in magnesium catalyzed with Nb2O5","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":"Hino, Satoshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Hino","familyNameLang":"en"}],"givenNames":[{"givenName":"Satoshi","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) 2005 Elsevier B.V."}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"hydrogen storage materials","subitem_subject_scheme":"Other"},{"subitem_subject":"high energy ballmilling","subitem_subject_scheme":"Other"},{"subitem_subject":"thermal analysis","subitem_subject_scheme":"Other"},{"subitem_subject":"420","subitem_subject_scheme":"NDC"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Kinetics of hydrogen absorption and desorption reactions was investigated on the MgH2 composite doped with 1 mol% Nb2O5 as a catalyst by ballmilling. The composite after dehydrogenation at 200 °C absorbed gaseous hydrogen of ~ 4.5 mass% even at room temperature under lower pressure than 1 MPa within 15 sec and finally its capacity reached more than 5 mass%. On the other hand, the catalyzed MgH2 after rehydrogenation desorbed ~6 mass% hydrogen at 160 ºC under purified He flow, which followed the first order reaction. From the Kissinger plot, the activation energy for hydrogen desorption was estimated to be ~71 kJ/molH2, indicating the product was significantly activated due to the catalytic effect of Nb2O5.","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":"0925-8388","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"AA10817249","subitem_source_identifier_type":"NCID"}]},"item_1617187024783":{"attribute_name":"Page Start","attribute_value_mlt":[{"subitem_start_page":"46"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-08-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1-2","bibliographicPageEnd":"49","bibliographicPageStart":"46","bibliographicVolumeNumber":"420","bibliographic_titles":[{"bibliographic_title":"Journal of Alloys and Compounds"},{"bibliographic_title":"Journal of Alloys and Compounds"}]}]},"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.jallcom.2005.08.084","subitem_relation_type_select":"DOI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1016/j.jallcom.2005.08.084","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":"JAllCompd_420_1-2_46.pdf","filesize":[{"value":"159.6 KB"}],"mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2007173/files/JAllCompd_420_1-2_46.pdf"},"version_id":"7715cf17-4e41-4de3-8aeb-df2d640a88bc"}]},"item_1732771732025":{"attribute_name":"旧ID","attribute_value":"20040"},"item_title":"Remarkable improvement of hydrogen sorption kinetics in magnesium catalyzed with Nb2O5","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":"2007173","relation_version_is_last":true,"title":["Remarkable improvement of hydrogen sorption kinetics in magnesium catalyzed with Nb2O5"],"weko_creator_id":"41","weko_shared_id":-1},"updated":"2025-02-21T09:24:00.442656+00:00"}