{"created":"2025-06-17T04:33:05.639744+00:00","id":2040744,"links":{},"metadata":{"_buckets":{"deposit":"5031b356-ab5a-4e71-8bc9-49cee7ed507a"},"_deposit":{"created_by":7,"id":"2040744","owner":"7","owners":[7],"pid":{"revision_id":0,"type":"depid","value":"2040744"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02040744","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Anti-oxidation effect of chromium addition for TiFe hydrogen storage alloys","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Chen, Zhiwen","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Guo, Fangqin","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Sunamoto, Reiji","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yin, Chenghao","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Miyaoka, Hiroki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ichikawa, Takayuki","creatorNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_access_right":"embargoed access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_f1cf"}]},"item_1617186499011":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/","subitem_rights_language":"en"},{"subitem_rights":"This is not the published version. Please cite only the published version.","subitem_rights_language":"en"},{"subitem_rights":"この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。","subitem_rights_language":"ja"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"TiFe-based hydrogen storage alloys","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Surface oxidation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Anti-oxidation property","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Degradation process","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Kinetics","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Anti-oxidation properties of Cr substitution were investigated by comparing TiFe and TiFe0.9Cr0.1. Kinetic measurements reveal that the degradation rate of TiFe0.9Cr0.1 is slower than that of TiFe, indicating that Cr substitution drastically enhances the anti-oxidation properties of the mother alloy TiFe. In order to understand the mechanism of this effect, X-ray photoelectron spectroscopy (XPS) was used to identify the surface chemical state of these alloys, which indicates that Cr plays quite an important role in the suppression of surface oxidation. It is clarified that the deactivation of TiFe is caused by the oxidation of Ti on the surface and, as a result, the obstruction of hydrogen penetration. On the contrary, with the substitution of Cr for Fe in TiFe0.9Cr0.1, the Ti oxidation becomes more difficult even though the Cr was totally oxidized, which makes it easier to keep the initial activated state of hydrogenation (Ti with a low oxidation state). It also further demonstrated that Cr acts as a sacrificial element, undergoing complete oxidation to protect Ti from oxidation, and assists in keeping metallic Ti0, which is crucial for maintaining the hydrogen absorption kinetics. Therefore, the Cr substitution for Fe significantly improves the anti-oxidation properties of TiFe-based alloys.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"Elsevier","subitem_publisher_language":"en"}]},"item_1617186660861":{"attribute_name":"Date","attribute_value_mlt":[{"subitem_date_issued_datetime":"2026-09-20","subitem_date_issued_type":"Available"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_1617186901218":{"attribute_name":"Funding Reference","attribute_value_mlt":[{"subitem_award_numbers":{"subitem_award_number":"JPMJFS2129"},"subitem_funder_identifiers":{"subitem_funder_identifier_type":"Crossref Funder","subitem_funder_identifier_type_uri":"https://doi.org/10.13039/501100002241"},"subitem_funder_names":[{"subitem_funder_name":"国立研究開発法人科学技術振興機構","subitem_funder_name_language":"ja"},{"subitem_funder_name":"Japan Science and Technology Agency","subitem_funder_name_language":"en"}]}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-09-20","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"176634","bibliographicVolumeNumber":"1008","bibliographic_titles":[{"bibliographic_title":"Journal of Alloys and Compounds","bibliographic_titleLang":"en"}]}]},"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_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.jallcom.2024.176634","subitem_relation_type_select":"DOI"}}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2026-09-20"}],"fileDate":[{"fileDateType":"Available","fileDateValue":"2026-09-20"}],"filename":"JAC_1008_176634.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","url":{"objectType":"fulltext","url":"https://hiroshima.repo.nii.ac.jp/record/2040744/files/JAC_1008_176634.pdf"},"version_id":"ad26f218-9ba2-4039-875e-173a39af4d3a"}]},"item_1732772494514":{"attribute_name":"備考","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"The full-text file will be made open to the public on 20 September 2026 in accordance with publisher's 'Terms and Conditions for Self-Archiving'"}]},"item_title":"Anti-oxidation effect of chromium addition for TiFe hydrogen storage alloys","item_type_id":"40036","owner":"7","path":["1730444907710"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-06-17"},"publish_date":"2025-06-17","publish_status":"0","recid":"2040744","relation_version_is_last":true,"title":["Anti-oxidation effect of chromium addition for TiFe hydrogen storage alloys"],"weko_creator_id":"7","weko_shared_id":-1},"updated":"2025-06-17T04:49:39.097979+00:00"}