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Electrolytic reduction studies of Mo and W towards the reduction of seaborgium

シーボーギウムの還元に向けたMoとWの電解還元実験

豊嶋 厚史; 浅井 雅人  ; Attallah, M. F.*; 後藤 尚哉*; Gupta, N. S.*; 羽場 宏光*; Huang, M.*; 金谷 淳平*; 金谷 佑亮; 笠松 良崇*; 北辻 章浩  ; 北山 雄太*; 古賀 和樹*; 小森 有希子*; 小山 巧*; Kratz, J. V.*; Lerum, H. V.*; 宮下 直*; 大江 一弘*; 押見 吉成*; Pershina, V.*; 佐藤 大輔*; 佐藤 哲也   ; 重河 優大*; 篠原 厚*; 田中 彰*; 塚田 和明  ; 津藤 翔平*; 横北 卓也*; 横山 明彦*; Omtvedt, J. P.*; 永目 諭一郎 ; Sch$"a$del, M.

Toyoshima, Atsushi; Asai, Masato; Attallah, M. F.*; Goto, Naoya*; Gupta, N. S.*; Haba, Hiromitsu*; Huang, M.*; Kanaya, Jumpei*; Kaneya, Yusuke; Kasamatsu, Yoshitaka*; Kitatsuji, Yoshihiro; Kitayama, Yuta*; Koga, Kazuki*; Komori, Yukiko*; Koyama, Takumi*; Kratz, J. V.*; Lerum, H. V.*; Miyashita, Sunao*; Oe, Kazuhiro*; Oshimi, Yoshinari*; Pershina, V.*; Sato, Daisuke*; Sato, Tetsuya; Shigekawa, Yudai*; Shinohara, Atsushi*; Tanaka, Akira*; Tsukada, Kazuaki; Tsuto, Shohei*; Yokokita, Takuya*; Yokoyama, Akihiko*; Omtvedt, J. P.*; Nagame, Yuichiro; Sch$"a$del, M.

Sgの還元研究に向け、キャリアフリートレーサー$$^{93m}$$Moと$$^{176,181}$$Wの電解還元挙動をフロー電解カラム(FEC)を用いて調べた。異なる溶媒抽出挙動に基づいて安定なMo(VI)やW(VI)とそれぞれの還元種を分離・同定するために、FECを用いて電解済みのサンプルをTOAやHDEHPを用いた溶媒抽出により化学的に分析した。また、マクロ量のMoやWのサイクリックボルタンメトリーや紫外可視分光測定を行い、それぞれの条件下における酸化還元反応の情報を得た。会議ではMoとWを用いた基礎実験の現状について報告する。

Towards electrolytic reduction of Sg, batch-wise electrolytic reduction of carrier-free $$^{93m}$$Mo and $$^{176,181}$$W radiotracers was studied using a flow electrolytic column (FEC). The electrolyzed samples from a FEC were chemically analyzed by solvent extraction with TOA and HDEHP to separate and identify reduced species from the stable Mo(VI) and W(VI) ones based on their different extraction behavior. $$^{93m}$$Mo and $$^{176, 181}$$W were applied as radiotracers. We also performed cyclic voltammetry and UV/Vis absorption spectrometry of macro amounts of Mo and W in acidic solutions to obtain information on redox reactions of these elements under given conditions. In the conference, the present status of the preparatory reduction experiments with Mo and W will be presented.

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