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  Atomic controllable anchoring of uranium into zirconate pyrochlore with ultrahigh loading capacity

Sun, J., Zhou, J., Li, L., Hu, Z., Chan, T.-S., Vitova, T., et al. (2022). Atomic controllable anchoring of uranium into zirconate pyrochlore with ultrahigh loading capacity. Chemical Communications, 58(21), 3469-3472. doi:10.1039/d2cc00576j.

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 Creators:
Sun, Jian1, Author
Zhou, Jing1, Author
Li, Lili1, Author
Hu, Zhiwei2, Author              
Chan, Ting-Shan1, Author
Vitova, Tonya1, Author
Song, Sanzhao1, Author
Liu, Renduo1, Author
Jing, Chao1, Author
Yu, Haisheng1, Author
Zhang, Ming1, Author
Rothe, Joerg1, Author
Wang, Jian-Qiang1, Author
Zhang, Linjuan1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              

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 Abstract: Efficient immobilization of actinide wastes is challenging in the nuclear energy industry. Here, we reported that 100% substitution of Zr4+ by U6+ in a La2Zr2O7 matrix has been achieved for the first time by the molten salt (MS) method. Importantly, we observed that uranium can be precisely anchored into Zr or La sites of the La2Zr2O7 matrix, as confirmed by X-ray diffraction, Raman, and X-ray absorption spectra. This work will guide the construction of site-controlled and high-capacity actinide-immobilized pyrochlore materials and could be extended to other perovskite materials.

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Language(s): eng - English
 Dates: 2022-02-142022-02-14
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000759742000001
DOI: 10.1039/d2cc00576j
 Degree: -

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Title: Chemical Communications
  Abbreviation : Chem. Commun.
Source Genre: Journal
 Creator(s):
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 58 (21) Sequence Number: - Start / End Page: 3469 - 3472 Identifier: ISSN: 1359-7345
CoNE: https://pure.mpg.de/cone/journals/resource/954928495413