| Kinetics process of tb(iii)/tb couple at liquid zn electrode and thermodynamic properties of tb-zn alloys formation | |
| Luo, LiXia1,2; Liu, YaLan1; Liu, Ning2; Liu, Kui1; Pang, JinWen1; Yuan, LiYong1; Chai, ZhiFang1; Shi, WeiQun1 | |
| 刊名 | Science china-chemistry
 |
| 2017-06-01 | |
| 卷号 | 60期号:6页码:813-821 |
| 关键词 | Tb Liquid zn electrode Kinetic parameters Thermodynamic properties Molten salt |
| ISSN号 | 1674-7291 |
| DOI | 10.1007/s11426-016-9007-0 |
| 通讯作者 | Shi, weiqun(shiwq@ihep.ac.cn) |
| 英文摘要 | Electrochemical properties of rare-earth elements in the licl-kcl eutectic are important for the pyrometallurgical recycling process of spent nuclear fuels. in this work, the electrochemical properties of tb (iii)/tb (0) couple were studied by the cyclic voltammetry (cv) at a liquid zn pool electrode. the results showed that this electrochemical reaction is quasi-reversible with mixed reversible diffusion control and the charge transfer control. the diffusion coefficient of tb (iii) was determined to be in the order of similar to 10(-5)cm(2)s(-1). moreover, kinetic parameters, such as the standard rate constants (k(s)) and charge transfer coefficient (a) for the electroreduction of tb (iii) to tb (0) at the liquid zn electrode, were calculated by the nicholson method at 873 k. additionally, it was found that tb-zn intermetallic compounds were easily to be formed in the measurements. hence, the reduction process of tb (iii)/tb (0) couple on the zn-coated mo electrode was also studied to obtain more information of the tb-zn intermetallic compounds. electrochemical signals stemming from various intermetallic compounds associated with tbzn12, tb2zn17, tb13zn58, tb3zn11, tbzn3, tbzn2 and tbzn, were observed. the thermodynamic data were thereafter estimated by applying the emf method at 823-923 k. the standard formation gibbs energies and the standard equilibrium constant of each tb-zn intermetallic compounds were also calculated. finally, enthalpies and entropies of formation and the apparent standard potentials of various tb-zn intermetallic compounds were also obtained. |
| WOS关键词 | KCL EUTECTIC MELTS ; MOLTEN CHLORIDE SALT ; LICL-KCL ; ELECTROCHEMICAL-BEHAVIOR ; INTERMETALLIC COMPOUNDS ; PHASE-DIAGRAMS ; HO-ZN ; ER-ZN ; EXTRACTION ; ELECTROREDUCTION |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000402071300020 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177421 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Shi, WeiQun |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China 2.Sichuan Univ, Inst Nucl Sci & Technol, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, LiXia,Liu, YaLan,Liu, Ning,et al. Kinetics process of tb(iii)/tb couple at liquid zn electrode and thermodynamic properties of tb-zn alloys formation[J]. Science china-chemistry,2017,60(6):813-821. |
| APA | Luo, LiXia.,Liu, YaLan.,Liu, Ning.,Liu, Kui.,Pang, JinWen.,...&Shi, WeiQun.(2017).Kinetics process of tb(iii)/tb couple at liquid zn electrode and thermodynamic properties of tb-zn alloys formation.Science china-chemistry,60(6),813-821. |
| MLA | Luo, LiXia,et al."Kinetics process of tb(iii)/tb couple at liquid zn electrode and thermodynamic properties of tb-zn alloys formation".Science china-chemistry 60.6(2017):813-821. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论