Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb

Hirokazu Konishi; Hideki Ono; Tetsuo Oishi; Toshiyuki Nohira

doi:10.1007/978-3-319-72350-1_8

Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb

Hirokazu Konishi^*, Hideki Ono, Tetsuo Oishi, Toshiyuki Nohira

^*Corresponding author for this work

Materials Design and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

The electrochemical formation of Tb-Ni alloys was investigated in a molten LiCl–KCl–TbCl₃ (0.50 mol% added) at 723 K. Open-circuit potentiometry was conducted using a Ni electrode after electrodepositing Tb metal at 0.20 V (vs. Li⁺/Li) for 300 s. There were four potential plateaus at (a) 0.66 V, (b) 0.80 V, (c) 0.95 V and (d) 1.56 V, respectively. Alloy samples were prepared by potentiostatic electrolysis at 0.60 and 0.70 V at 723 K. The alloy phase was identified as only TbNi₂. Anodic dissolution of Tb from the formed TbNi₂ was conducted at 0.90, 1.20 and 1.60 V, respectively. In the sample obtained at 0.90 V for 3 h, the existence of TbNi₃ was identified by the XRD. Phase of the sample obtained at 1.20 V for 3 h was TbNi₅. The sample obtained at 1.60 V for 3 h was Ni. Alloy samples were prepared by potentiostatic electrolysis at 0.50–0.80 V for 1 h using Ni plate cathodes in a molten LiCl–KCl containing TbCl₃ (0.50 mol%) and NdCl₃ (0.50 mol%). The highest mass ratio of Tb/Nd in the alloy sample was 56 at 0.70 V.

Original language	English
Title of host publication	Rare Metal Technology 2018
Editors	Takanari Ouchi, Neale R. Neelameggham, Shijie Wang, Xiaofei Guan, Bradford Wesstrom, Shafiq Alam, Hojong Kim, Gisele Azimi
Publisher	Springer International Publishing
Pages	89-97
Number of pages	9
ISBN (Print)	9783319723495
DOIs	https://doi.org/10.1007/978-3-319-72350-1_8
State	Published - 2018
Event	International Symposium on Rare Metal Technology, 2018 - Phoenix, United States Duration: 2018/03/11 → 2018/03/15

Publication series

Name	Minerals, Metals and Materials Series
Volume	Part F5
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	International Symposium on Rare Metal Technology, 2018
Country/Territory	United States
City	Phoenix
Period	2018/03/11 → 2018/03/15

Keywords

Electrolysis
Molten salt
Rare earth
Separation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy Engineering and Power Technology
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.1007/978-3-319-72350-1_8

Cite this

Konishi, H., Ono, H., Oishi, T., & Nohira, T. (2018). Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb. In T. Ouchi, N. R. Neelameggham, S. Wang, X. Guan, B. Wesstrom, S. Alam, H. Kim, & G. Azimi (Eds.), Rare Metal Technology 2018 (pp. 89-97). (Minerals, Metals and Materials Series; Vol. Part F5). Springer International Publishing. https://doi.org/10.1007/978-3-319-72350-1_8

Konishi, Hirokazu ; Ono, Hideki ; Oishi, Tetsuo et al. / Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb. Rare Metal Technology 2018. editor / Takanari Ouchi ; Neale R. Neelameggham ; Shijie Wang ; Xiaofei Guan ; Bradford Wesstrom ; Shafiq Alam ; Hojong Kim ; Gisele Azimi. Springer International Publishing, 2018. pp. 89-97 (Minerals, Metals and Materials Series).

@inproceedings{81e7c5a1ae024928a961b34618250dba,

title = "Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb",

abstract = "The electrochemical formation of Tb-Ni alloys was investigated in a molten LiCl–KCl–TbCl3 (0.50 mol% added) at 723 K. Open-circuit potentiometry was conducted using a Ni electrode after electrodepositing Tb metal at 0.20 V (vs. Li+/Li) for 300 s. There were four potential plateaus at (a) 0.66 V, (b) 0.80 V, (c) 0.95 V and (d) 1.56 V, respectively. Alloy samples were prepared by potentiostatic electrolysis at 0.60 and 0.70 V at 723 K. The alloy phase was identified as only TbNi2. Anodic dissolution of Tb from the formed TbNi2 was conducted at 0.90, 1.20 and 1.60 V, respectively. In the sample obtained at 0.90 V for 3 h, the existence of TbNi3 was identified by the XRD. Phase of the sample obtained at 1.20 V for 3 h was TbNi5. The sample obtained at 1.60 V for 3 h was Ni. Alloy samples were prepared by potentiostatic electrolysis at 0.50–0.80 V for 1 h using Ni plate cathodes in a molten LiCl–KCl containing TbCl3 (0.50 mol%) and NdCl3 (0.50 mol%). The highest mass ratio of Tb/Nd in the alloy sample was 56 at 0.70 V.",

keywords = "Electrolysis, Molten salt, Rare earth, Separation",

author = "Hirokazu Konishi and Hideki Ono and Tetsuo Oishi and Toshiyuki Nohira",

note = "Publisher Copyright: {\textcopyright} The Minerals, Metals & Materials Society 2018.; International Symposium on Rare Metal Technology, 2018 ; Conference date: 11-03-2018 Through 15-03-2018",

year = "2018",

doi = "10.1007/978-3-319-72350-1_8",

language = "英語",

isbn = "9783319723495",

series = "Minerals, Metals and Materials Series",

publisher = "Springer International Publishing",

pages = "89--97",

editor = "Takanari Ouchi and Neelameggham, {Neale R.} and Shijie Wang and Xiaofei Guan and Bradford Wesstrom and Shafiq Alam and Hojong Kim and Gisele Azimi",

booktitle = "Rare Metal Technology 2018",

}

Konishi, H, Ono, H, Oishi, T & Nohira, T 2018, Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb. in T Ouchi, NR Neelameggham, S Wang, X Guan, B Wesstrom, S Alam, H Kim & G Azimi (eds), Rare Metal Technology 2018. Minerals, Metals and Materials Series, vol. Part F5, Springer International Publishing, pp. 89-97, International Symposium on Rare Metal Technology, 2018, Phoenix, United States, 2018/03/11. https://doi.org/10.1007/978-3-319-72350-1_8

Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb. / Konishi, Hirokazu; Ono, Hideki; Oishi, Tetsuo et al.
Rare Metal Technology 2018. ed. / Takanari Ouchi; Neale R. Neelameggham; Shijie Wang; Xiaofei Guan; Bradford Wesstrom; Shafiq Alam; Hojong Kim; Gisele Azimi. Springer International Publishing, 2018. p. 89-97 (Minerals, Metals and Materials Series; Vol. Part F5).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb

AU - Konishi, Hirokazu

AU - Ono, Hideki

AU - Oishi, Tetsuo

AU - Nohira, Toshiyuki

N1 - Publisher Copyright: © The Minerals, Metals & Materials Society 2018.

PY - 2018

Y1 - 2018

N2 - The electrochemical formation of Tb-Ni alloys was investigated in a molten LiCl–KCl–TbCl3 (0.50 mol% added) at 723 K. Open-circuit potentiometry was conducted using a Ni electrode after electrodepositing Tb metal at 0.20 V (vs. Li+/Li) for 300 s. There were four potential plateaus at (a) 0.66 V, (b) 0.80 V, (c) 0.95 V and (d) 1.56 V, respectively. Alloy samples were prepared by potentiostatic electrolysis at 0.60 and 0.70 V at 723 K. The alloy phase was identified as only TbNi2. Anodic dissolution of Tb from the formed TbNi2 was conducted at 0.90, 1.20 and 1.60 V, respectively. In the sample obtained at 0.90 V for 3 h, the existence of TbNi3 was identified by the XRD. Phase of the sample obtained at 1.20 V for 3 h was TbNi5. The sample obtained at 1.60 V for 3 h was Ni. Alloy samples were prepared by potentiostatic electrolysis at 0.50–0.80 V for 1 h using Ni plate cathodes in a molten LiCl–KCl containing TbCl3 (0.50 mol%) and NdCl3 (0.50 mol%). The highest mass ratio of Tb/Nd in the alloy sample was 56 at 0.70 V.

AB - The electrochemical formation of Tb-Ni alloys was investigated in a molten LiCl–KCl–TbCl3 (0.50 mol% added) at 723 K. Open-circuit potentiometry was conducted using a Ni electrode after electrodepositing Tb metal at 0.20 V (vs. Li+/Li) for 300 s. There were four potential plateaus at (a) 0.66 V, (b) 0.80 V, (c) 0.95 V and (d) 1.56 V, respectively. Alloy samples were prepared by potentiostatic electrolysis at 0.60 and 0.70 V at 723 K. The alloy phase was identified as only TbNi2. Anodic dissolution of Tb from the formed TbNi2 was conducted at 0.90, 1.20 and 1.60 V, respectively. In the sample obtained at 0.90 V for 3 h, the existence of TbNi3 was identified by the XRD. Phase of the sample obtained at 1.20 V for 3 h was TbNi5. The sample obtained at 1.60 V for 3 h was Ni. Alloy samples were prepared by potentiostatic electrolysis at 0.50–0.80 V for 1 h using Ni plate cathodes in a molten LiCl–KCl containing TbCl3 (0.50 mol%) and NdCl3 (0.50 mol%). The highest mass ratio of Tb/Nd in the alloy sample was 56 at 0.70 V.

KW - Electrolysis

KW - Molten salt

KW - Rare earth

KW - Separation

UR - http://www.scopus.com/inward/record.url?scp=85042446998&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-72350-1_8

DO - 10.1007/978-3-319-72350-1_8

M3 - 会議への寄与

AN - SCOPUS:85042446998

SN - 9783319723495

T3 - Minerals, Metals and Materials Series

SP - 89

EP - 97

BT - Rare Metal Technology 2018

A2 - Ouchi, Takanari

A2 - Neelameggham, Neale R.

A2 - Wang, Shijie

A2 - Guan, Xiaofei

A2 - Wesstrom, Bradford

A2 - Alam, Shafiq

A2 - Kim, Hojong

A2 - Azimi, Gisele

PB - Springer International Publishing

T2 - International Symposium on Rare Metal Technology, 2018

Y2 - 11 March 2018 through 15 March 2018

ER -

Konishi H, Ono H, Oishi T, Nohira T. Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb. In Ouchi T, Neelameggham NR, Wang S, Guan X, Wesstrom B, Alam S, Kim H, Azimi G, editors, Rare Metal Technology 2018. Springer International Publishing. 2018. p. 89-97. (Minerals, Metals and Materials Series). doi: 10.1007/978-3-319-72350-1_8

Electrochemical formation of Tb alloys in molten LiCl–KCl eutectic melts and separation of Tb

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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