{"created":"2023-06-20T15:14:48.825092+00:00","id":12165,"links":{},"metadata":{"_buckets":{"deposit":"87836b0d-c728-471a-a130-efce1928ba53"},"_deposit":{"created_by":3,"id":"12165","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"12165"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:00012165","sets":["500:501"]},"author_link":["34887","40666","43360"],"item_2_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-08-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"8","bibliographicVolumeNumber":"169","bibliographic_titles":[{"bibliographic_title":"Journal of The Electrochemical Society"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In this study, phosphonium-based ionic liquids (IL), i.e., triethyl-n-pentyl, triethyl-n-octyl, and triethyl-n-dodecyl phosphonium bis(trifluoromethyl-sulfonyl)amide, [P222X][NTf2], (X = 5, 8, and 12) were investigated for Au(III) extraction. The IL–Au complex was identified as [P2225][AuCl4] using UV–Vis–NIR and Raman spectroscopic analyses. Slope analyses with the concentration dependence of [P222X+] confirmed the anion-exchange mechanism of Au(III) extraction by [P222X+] (X = 5, 8, and 12). The enthalpy, entropy, and Gibbs free energy for Au(III) extraction were determined using thermodynamic analysis, indicating that lower temperatures had a positive effect on the Au(III) extraction. Electrochemical analysis revealed that extracted Au(III) can be reduced in two steps: (i) Au(III) + 2e− → Au(I), (ii) Au(I) + e− → Au(0)]. The diffusion coefficients of the extracted Au(III) species in [P222X][NTf2] (X = 5, 8, and 12) were evaluated from 323 to 373 K using semi-integral and semi-differential analyses. Because of the viscosity of the IL medium, the diffusion coefficient of the extracted Au(III) increases with increasing alkyl chain length. The 4f7/2 spectrum based on X-ray photoelectron spectroscopy revealed that the Au electrodeposits obtained after 10 cycles of continuous extraction and electrodeposition were in the metallic state.","subitem_description_type":"Abstract"}]},"item_2_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Accepted Manuscript","subitem_description_type":"Other"}]},"item_2_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Electrochemical Society"},{"subitem_publisher":"IOP Publishing"}]},"item_2_relation_13":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1149/1945-7111/ac876d","subitem_relation_type_select":"DOI"}}]},"item_2_relation_44":{"attribute_name":"関係URI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://doi.org/10.1149/1945-7111/ac876d"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1149/1945-7111/ac876d","subitem_relation_type_select":"DOI"}}]},"item_2_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00697016","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"19457111","subitem_source_identifier_type":"ISSN"}]},"item_2_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Environment and Information Sciences, Yokohama National University"},{"subitem_text_value":"Graduate School of Environment and Information Sciences, Yokohama National University"},{"subitem_text_value":"Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency"}]},"item_2_version_type_18":{"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":"Masahiko, Matsumiya"}],"nameIdentifiers":[{"nameIdentifier":"34887","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00370057","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00370057"}]},{"creatorNames":[{"creatorName":"Ryoma, Kinoshita"}],"nameIdentifiers":[{"nameIdentifier":"43360","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yuji, Sasaki"}],"nameIdentifiers":[{"nameIdentifier":"40666","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"20354839","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=20354839"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-11-01"}],"displaytype":"detail","filename":"manuscript_r(JES).pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"manuscript_r(JES).pdf","url":"https://ynu.repo.nii.ac.jp/record/12165/files/manuscript_r(JES).pdf"},"version_id":"34e10202-7918-4420-b6c3-5aaea11aff91"}]},"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":"Recovery of Gold by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Recovery of Gold by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids"}]},"item_type_id":"2","owner":"3","path":["501"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-11-01"},"publish_date":"2022-11-01","publish_status":"0","recid":"12165","relation_version_is_last":true,"title":["Recovery of Gold by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-20T17:38:42.496183+00:00"}