• Title/Summary/Keyword: $UCl_3$

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Electrochemical Behavior of UCl3 and GdCl3 in LiCl-KCl Molten Salt (LiCl-KCl 고온 용융염 내 UCl3 및 GdCl3의 전기화학적 거동 연구)

  • Min, Seul-Ki;Bae, Sang-Eun;Park, Yong-Joon;Song, Kyu-Seok
    • Journal of the Korean Electrochemical Society
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    • v.12 no.3
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    • pp.276-281
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    • 2009

  • Electrochemical behaviors of $U^{3+}$ and $Gd^{3+}$ were investigated in LiCl-KCl eutectic molten salt by using various electrochemical techniques. The electrodeposition and dissolution currents for uranium show the maximum at -1.51V and -1.35V, respectively while, for gadolinium,at -2.15V and -1.9V, respectively. In case of LiCl-KCl molten salt containing both of $U^{3+}$ and $Gd^{3+}$, the peak potential of electrodeposition of gadolinium shifts to more positive potential than in the solution without $U^{3+}$. The potentials in chronopotentiometric data suddenly dropped to negative value as soon as the reduction currents were applied and became constant at the potential around which the $U^{3+}$ and $Gd^{3+}$ are electrodeposited. The results of normal pulse voltammetry (NPV) and square wave voltammetry show that those methods can be used to qualitatively analyze the elements in the melts. Especially, the differentiation of NPV result was found to be useful for the separation of the peaks of which potentials are close each other.

  • https://doi.org/10.5229/JKES.2009.12.3.276 인용 PDF KSCI

Test of IPv6-based multicast video conferencing on Native IPv6 network and TEIN (순수 IPv6 망 및 TEIN을 통한 IPv6 기반의 멀티캐스트 화상회의 실험)

  • 인민교;이승윤;김형준
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.323-326
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    • 2002

  • In this paper, we propose the new experimental using gif tunneling based on IPv4 and IPv6. HVIC developed by ETRI-SNU and vic, net by UCL in England were used during the tests. The networks used in this experiments are TEIN (TEIN:TransEurasia Information Network) that recently established between Korea and Europe and ATM-based IPv6 native network which connecting among ETRI, KOREN, SNU. We take following three scenarios into account. The one is the IPv6 tunneling based on IPv4, the other is IPv6 tunneling on IPv6 network, and the third is IPv6 native network based on ATM we propose the new experimental method using gif tunneling between IPv4 and IPv6.

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Interaction between UN and CdCl2 in molten LiCl-KCl eutectic. II. Experiment at 1023 K

  • Zhitkov, Alexander;Potapov, Alexei;Karimov, Kirill;Kholkina, Anna;Shishkin, Vladimir;Dedyukhin, Alexander;Zaykov, Yury
    • Nuclear Engineering and Technology
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    • v.54 no.2
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    • pp.653-660
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    • 2022

  • The interaction between UN and CdCl2 in the LiCl-KCl molten eutectic was studied at 1023 K. The chlorination was monitored by sampling and recording the redox potential of the medium. At 1023 K the chlorination of UN with cadmium chloride in the molten LiCl-KCl eutectic proceeds completely and results in the formation of uranium chlorides. The melts of the LiCl-KCl-UCl3 or LiCl-KCl-UCl4 compositions can be obtained by the end of experiment depending on the presence of metallic cadmium in the reaction zone. The higher the concentration of the chlorinating agent, the faster the reaction rate. At [CdCl2]/[UN] = 1.65 (10% excess) the reaction proceeds to completion in about 7.5 h. At [CdCl2]/[UN] = 7 the complete chlorination takes 2.5-3 h.

  • https://doi.org/10.1016/j.net.2021.08.030 인용 PDF KSCI