{"created":"2023-05-15T11:56:28.583347+00:00","id":1743,"links":{},"metadata":{"_buckets":{"deposit":"9d215f2b-4a4b-4a58-b8b0-a1a60a07daf1"},"_deposit":{"created_by":3,"id":"1743","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"1743"},"status":"published"},"_oai":{"id":"oai:kyutech.repo.nii.ac.jp:00001743","sets":["8:9"]},"author_link":["7228","7223","219","7224","7226","7225"],"item_21_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"15","bibliographicPageEnd":"2339","bibliographicPageStart":"2333","bibliographicVolumeNumber":"603","bibliographic_titles":[{"bibliographic_title":"Surface Science"}]}]},"item_21_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"D abstraction (ABS) by H at Ru(0 0 1) surfaces initially saturated with D adatoms has been investigated using in situ mass spectrometry. HD and D2 desorption rates are measured at various surface temperatures T as a function of H exposure time. Yield of D2 desorption increases with T, while that of HD is little affected. Analyzing the measured rate curves, HD and D2 desorption orders are evaluated to be 1.7 ± 0.1 and 2.5 ± 0.1, respectively, with respect to D coverage θD. To pursue the origin of the derived non-integral reaction orders the rate curves are further analyzed with the rate equations constructed to involve several ABS channels. Consequently, we find that the HD desorption is mainly governed by a second-order rate law in θD rather than the conventional hot atom-mediated ABS reaction even when it is corrected to include an isotope effect on ABS. We argue that such second-order ABS kinetics becomes important when the H atoms in excited state of chemisorption have energetically relaxed to some extent, and thereby tend to reside at, e.g. hexagonal closed packed hollow sites, interacting with nearby adatoms. On the other hand, the D2 rate curves can be fit with third-order kinetics, consistent with the Langmuir–Hinshelwood mechanism in a super-saturation state. The isotope effect plays an essential role in the ABS reaction of D abstraction by H which competes with H abstraction by H as D adatoms are replaced by H atoms.","subitem_description_type":"Abstract"}]},"item_21_description_60":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"Journal Article","subitem_description_type":"Other"}]},"item_21_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"7228","nameIdentifierScheme":"WEKO"}],"names":[{"name":"山内, 貴志"}]}]},"item_21_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_21_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.susc.2009.05.013","subitem_relation_type_select":"DOI"}}]},"item_21_relation_14":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"http://www.sciencedirect.com/science/journal/01694332"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.sciencedirect.com/science/journal/01694332","subitem_relation_type_select":"URI"}}]},"item_21_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Crown copyright © 2009 Published by Elsevier B.V."}]},"item_21_select_59":{"attribute_name":"査読の有無","attribute_value_mlt":[{"subitem_select_item":"yes"}]},"item_21_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0169-4332","subitem_source_identifier_type":"ISSN"}]},"item_21_text_36":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Electrical Engineering, Kyushu Institute of Technology"}]},"item_21_text_64":{"attribute_name":"業績ID","attribute_value_mlt":[{"subitem_text_value":"912CD5927E941CAB49257688003A9188"}]},"item_21_version_type_58":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamauchi, T"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakashima, Y"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Misumi, T"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mine, K"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"Namiki, Akira","creatorNameLang":"en"},{"creatorName":"並木, 章","creatorNameLang":"ja"},{"creatorName":"ナミキ, アキラ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2009-12-10"}],"displaytype":"detail","filename":"SS2333.pdf","filesize":[{"value":"731.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SS2333.pdf","url":"https://kyutech.repo.nii.ac.jp/record/1743/files/SS2333.pdf"},"version_id":"08ea9a3a-d007-417d-8378-f7b399a2ccf9"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Hydrogen","subitem_subject_scheme":"Other"},{"subitem_subject":"Abstraction reaction","subitem_subject_scheme":"Other"},{"subitem_subject":"Ruthenium","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"D abstraction by H at a D-saturated Ru(001) surface","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"D abstraction by H at a D-saturated Ru(001) surface"}]},"item_type_id":"21","owner":"3","path":["9"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-12-10"},"publish_date":"2009-12-10","publish_status":"0","recid":"1743","relation_version_is_last":true,"title":["D abstraction by H at a D-saturated Ru(001) surface"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2024-04-02T08:42:10.413886+00:00"}