Elucidation of redox reaction mechanisms and control of oxidation states of actinide ions in a neutral solution or dispersed solution
| Project/Area Number |
22560832
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
KITATSUJI Yoshihiro 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 研究副主幹 (30354898)
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| Co-Investigator(Kenkyū-buntansha) |
OTOBE Haruyoshi 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 研究副主幹 (20469802)
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| Co-Investigator(Renkei-kenkyūsha) |
KIMURA Takaumi 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 研究主席 (20354897)
MIYASHITA Sunao 独立行政法人日本原子力研究開発機構, 原子力基礎工学研究部門, 博士研究員 (70553551)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | バックエンド / アクチノイド / 酸化還元 / 電極反応 / 凝集相 / 中性溶液 / 結晶構造 / 不均化反応 / ウラン / 弱酸性溶液 / 電解還元 / 微小電極 / ネプツニウム / プルトニウム / フロー電解 / X線回折 / 電極触媒 / 回転ディスクポルタンメトリー |
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| Research Abstract |
The flow cell with a platinized glassy carbon working electrode was developed for control the oxidation states of actinide ions. The overpotentials of the reduction of Np(V) and Pu(V) were decreased , and a precise method for the preparation of the actinide ions of desired oxidation state was proposed. Redox reactions of actinide ions in neutral solutions were investigated. U(V) was reduced to UO_2 by both of electrode reaction and disproportionation. The reduction of U(V) and the aggregation of UO_2 became faster when UO_2 was formed in the solution or at the electrode surface.
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Report
(4 results)
Research Products
(14 results)
