DOI: 10.1039/d6ta05331a ISSN: 2050-7488
Unraveling the temperature-dependent redox cycle of chromium species in molten chloride salt via in situ X-ray absorption spectroscopy
Yuxiang Peng, Kaifeng Zheng, Kazuhiro Iwamatsu, Ankita Mohanty, Denis Leshchev, Akhil Tayal, Jorge Moncada Vivas, Bobby Layne, Xiaoyin Zheng, Ellie M. Kim, Phillip Halstenberg, Sheng Dai, James F. Wishart, Anatoly I. Frenkel, Yu-chen Karen Chen-WiegartIn situ X-ray absorption spectroscopy reveals an impurity-mediated Cr redox cycle in LiCl–KCl: Cr(
ii
) is oxidized to Cr(
iii
) with H
2
evolution at high temperature and reduced back to Cr(
ii
) by H
2
during solidification.