Electrochemical Reactions of Uranium Trichloride on a Graphene Surface in LiCl-KCl Molten Salt

• KIM Dae-Hyeon

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute Department of Chemistry, Korea University

• BAE Sang-Eun

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• PARK Tae-Hong

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• KIM Jong-Yun

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• PARK Yang-Soon

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• PARK Yong Joon

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• CHO Young Hwan

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• YEON Jei-Won

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

• SONG Kyuseok

  Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute

抄録

The electrochemcal reactions of uranium trichloride on the surfaces of dimensionally very dissimilar carbon-based materials such as glassy carbon (GC) and graphene in LiCl-KCl eutectic melt were investigated using cyclic voltammetry (CV) and scanning electron microscopy (SEM). The cathodic scanning of CV displayed that the Li intercalation reaction into the GC electrode governs at the potential of approximately −1.45 V vs. Ag|Ag⁺ where the electrodeposition reaction of uranium may occur. On the other hand, the graphene electrode presented electrodeposition current of the uranium without interference at −1.45 V vs. Ag|Ag⁺ because the Li intercalation reaction was extensively diminished on the very thin graphene film. In addition, it was successful to measure the electrodeposition current of gadolinium at more positive than −2.1 V without the interference of the Li intercalation into the graphene substrate. Consequently, the significant reduction of the Li intercalation reaction on the nanometer thick carbon electrode extensively expands the electrochemical potential window of the carbon-based electrode with respect to the bulk carbon electrode in LiCl-KCl melt, emphasizing that the graphene has a great potential as a cathode electrode in high temperature molten salt electrolytes.

収録刊行物

• Electrochemistry

  Electrochemistry 82 (6), 462-466, 2014

  公益社団法人　電気化学会

キーワード

• Uranium
• Graphene
• Molten Salt
• Pyrochemical Process

詳細情報

• CRID: 1390282681476346112
• NII論文ID: 130004562473
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.82.462
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 025485488
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025485488
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/82/6/82_13-E00027/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用可