LiCl-KCl 용융염에서 광학적으로 투명한 전극을 이용한 사마륨 이온의 전기화학적 거동에 관한 연구A Study on Electrochemical Behaviors of Samarium Ions in the Molten LiCl-KCl Eutectic Using Optically Transparent Electrode
- Other Titles
- A Study on Electrochemical Behaviors of Samarium Ions in the Molten LiCl-KCl Eutectic Using Optically Transparent Electrode
- Authors
- 이애리; 박병기
- Issue Date
- 2017
- Publisher
- 한국방사성폐기물학회
- Keywords
- Samarium; Molten LiCl-KCl eutectic; Spectroelectrochemical; Cyclic voltametry; Potential step chronoabsometry; 사마륨; LiCl-KCl 용융염; 분광전기학; Cyclic voltammetry; Potential step chronoabsorptometry
- Citation
- 방사성폐기물학회지, v.15, no.4, pp 313 - 320
- Pages
- 8
- Journal Title
- 방사성폐기물학회지
- Volume
- 15
- Number
- 4
- Start Page
- 313
- End Page
- 320
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/8008
- DOI
- 10.7733/jnfcwt.2017.15.4.313
- ISSN
- 1738-1894
2288-5471
- Abstract
- A spectroelectrochemical method has been applied to investigate the electrochemical behaviors and identify the kinds of samarium ions dissolved in high temperature molten LiCl-KCl eutectic. An optically transparent electrode (OTE) fabricated with a tungsten gauze as a working electrode has been used to conduct cyclic voltammetry and potential step chronoabsorptometry.
Based on the reversibility of the redox reaction of Sm3+/Sm2+ , which was determined from the cyclic voltammograms, the formal potential and the diffusion coefficient were calculated to be -1.99 V vs. Cl2/Cl- and 2.53 × 10-6 cm2·s-1, respectively. From the chronoabsorptometry results at the applied potential of -1.5 V vs. Ag/AgCl (1wt%), the characteristic peaks of absorption for samarium ions were determined to be 408.08 nm for Sm3+ and 545.62 nm for Sm2+. Potential step chronoabsorptometry was conducted using the anodic and the cathodic peak potentials from the voltammograms. Absorbance analysis at 545.63 nm shows that the diffusion coefficient of Sm3+ is 2.15 × 10-6 cm2·s-1, which is comparable to the value determined by cyclic voltammetry at the same temperature.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Energy and Environmental Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/8008)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.