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Recovery of Palladium by Extraction-electrodeposition Using N, N, N’, N’, N”, N”- Hexaoctyl-nitrilotriacetamide
http://hdl.handle.net/10131/00014813
http://hdl.handle.net/10131/000148138f76af4d-91e4-44d1-9fe6-423313eb0de9
名前 / ファイル | ライセンス | アクション |
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revised2_N21-35_pre_ed_rev_final.pdf (889.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-11-01 | |||||
タイトル | ||||||
タイトル | Recovery of Palladium by Extraction-electrodeposition Using N, N, N’, N’, N”, N”- Hexaoctyl-nitrilotriacetamide | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Chloride media, extraction-electrodeposition, NTAamide(C8), palladium | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Ryoma, Kinoshita
× Ryoma, Kinoshita× Masahiko, Matsumiya× Yuji, Sasaki |
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著者所属 | ||||||
Graduate School of Environment and Information Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Graduate School of Environment and Information Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | It is essential to develop solvent extraction (SX), and electrodeposition (ED) processes for palladium to reduce the volume of acid and organic media. In this study, the extraction reaction of Pd(II) in chloride media using of N, N, N’, N’, N”, N”-hexaoctyl-nitrilotriacetamide (NTAamide(C8)) as a novel extractant has been demonstrated. Three diluents with high dielectric constants (acetophenone (AP), 1,2-dichloroethane (DCE), and 1-octanol (OC)) were used for the solvent extraction reaction. The slope analysis indicated that the anion exchange extraction reaction of Pd(II) was consistent with an approximately 2:1 stoichiometry for the NTAamide(C8)/AP and NTAamide(C8)/DCE systems, and 1:1 for NTAamide(C8)/OC. Moreover, the ED behavior of the extracted Pd(II) complex was investigated using cyclic voltammetry (CV). Palladium reduction was found to be an irreversible process based on analysis of the standard rate constant. A semi-integral analysis of the voltammogram determined the diffusion coefficients of the extracted Pd(II) complex in the AP, DCE, and OC systems to be 3.7 ± 0.1 × 10−10, 2.8 ± 0.1 × 10−10 and 1.5 ± 0.2 × 10−10 m2 s−1, respectively. Furthermore, consecutive extraction-electrodeposition processes using the NTAamide(C8)/AP system were carried out for five cycles. High extraction percentage (E > 91%) and current efficiency (ε > 83.1%) were attained in all cycles. The electrodeposits recovered from the extraction-electrodeposition process were identified as Pd metal through X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses. | |||||
書誌情報 |
Solvent Extraction and Ion Exchange 巻 40, 号 6, p. 606-619, 発行日 2022-01-05 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 15322262 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1080/07366299.2021.2023268 | |||||
権利 | ||||||
権利情報 | This is an Accepted Manuscript of an article published by Taylor & Francis in Solvent Extraction and Ion Exchange on 05 Jan 2022, available at: http://www.tandfonline.com/10.1080/07366299.2021.2023268 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Taylor & Francis | |||||
関係URI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1080/07366299.2021.2023268 | |||||
関連名称 | https://doi.org/10.1080/07366299.2021.2023268 |