JOURNAL ARTICLE

Sodium Cerium Phosphate, (Na,Ce)2Ce(PO4)2 ⋅ xH2O, with Mixed Cerium Oxidation States.

  • Published In: ChemistrySelect, 2024, v. 9, n. 17. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Baranchikov, Alexander E.; Kozlova, Taisiya O.; Istomin, Sergey Ya.; Mironov, Andrey V.; Vasilchikova, Tatyana M.; Gippius, Andrei A.; Plakhova, Tatiana V.; Vasilyeva, Darya N.; Ivanov, Vladimir K. 3 of 3

Abstract

A previously unknown double ceric sodium phosphate hydrate Na1.97Ce1.03(PO4)2 ⋅ xH2O containing both ceric and cerous cations was obtained by the hydrothermal treatment of amorphous ceric phosphate mixed with a sodium hydroxide aqueous solution. The presence of Ce3+ in the structure was proved by HERFD‐XANES and ESR spectroscopy. Iterative transformation factor analysis of HERFD‐XANES data allowed estimating the content of Ce3+ as 10 % of the total cerium. Water content of x=0.55 has been determined by thermogravimetric analysis combined with mass‐spectrometry data. The structure of the compound was solved from powder X‐ray diffraction data (S.G. P21/c a=6.9441(2) Å, b=11.6805(3) Å, c=9.3434(3) Å, β=111.6827(18)°). The new ceric sodium phosphate hydrate has a tunnel structure, where Ce3+ cations most likely partially occupy Na+ positions. The crystal structure of the novel compound has no direct analogues among the crystal structures of double tetravalent metal phosphates. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:ChemistrySelect. 2024/05, Vol. 9, Issue 17, p1
  • Document Type:Article
  • Subject Area:Earth and Atmospheric Sciences
  • Publication Date:2024
  • ISSN:2365-6549
  • DOI:10.1002/slct.202401010
  • Accession Number:177040237
  • Copyright Statement:Copyright of ChemistrySelect is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Looking to go deeper into this topic? Look for more articles on EBSCOhost.