Speciation study of chromium corrosion product in molten LiF-NaF-KF salt

• 作者： QIU Jie ^1,2 ZOU Yang ¹ YU Guo-Jun ¹ HE Shang-Ming ¹ LIU Wen-Guan ¹ JIA Yan-Yan ¹ LI Zhi-Jun ¹ XU Hong-Jie ¹
• 作者单位：
  1.  Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  2.  University of Chinese Academy of Sciences, Beijing 100049, China
• 提交时间：2023-06-18

摘要: To investigate the corrosion products of Cr in molten FLiNaK salt (46.5 mol% LiF11.5 mol% NaF42 mol% KF), the corrosion test of the pure metal Cr was performed in molten FLiNaK salt at 700 ℃ for 200 h. The FLiNaK salt after the corrosion test was thoroughly investigated by X-ray absorption near-edge structure spectroscopy, a transmission electron microscope, and X-ray diffraction. The results demonstrate that the predominant oxidation state of Cr in FLiNaK salt is Cr3+, and the main corrosion product in cooled FLiNaK salt is K2NaCrF6.

• 期刊： Nuclear Science and Techniques
• 分类： 核科学技术 >> 裂变堆工程技术
• 投稿状态： 已在期刊出版
• 引用： ChinaXiv:202306.00205 (或此版本 ChinaXiv:202306.00205V1)
  DOI:dx.doi.org/10.13538/j.1001-8042/nst.26.060602
  CSTR:32003.36.ChinaXiv.202306.00205.V1
• 推荐引用方式： QIU Jie,ZOU Yang,YU Guo-Jun,HE Shang-Ming,LIU Wen-Guan,JIA Yan-Yan,LI Zhi-Jun,XU Hong-Jie.(2023).Speciation study of chromium corrosion product in molten LiF-NaF-KF salt.Nuclear Science and Techniques.doi:dx.doi.org/10.13538/j.1001-8042/nst.26.060602 (点此复制)