Browse by author
Lookup NU author(s): Professor Ulrich Stimming
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
The two 16-manganese-containing, Keggin-based 36-tungsto-4-silicates [(Mn10Mn6O6)-Mn-III-O-II(OH)(6)(PO4)(4)(A-alpha-SiW9O34)(4)](28-) (1) and [(Mn4Mn12II)-Mn-III(OH)(12)(PO4)(4)(A-alpha-SiW9O34)(4)](28-) (2) have been prepared by reaction of the trilacunary Keggin precursor [A-alpha-SiW9O34](10-) with either Mn(OOCCH3)(3)center dot 2H(2)O (for 1) or MnCl2 center dot 4H2O (for 2), in aqueous phosphate solution at pH 9. Polyanions 1 and 2 comprise mixed-valent, cationic {(MnMnI6O6)-Mn-III-I-II(OH)(6)}(24+) and {(Mn10Mn6O6)-Mn-III-O-II(OH)(6)(PO4)(4) cores, respectively, encapsulated by four phosphate groups and four {SiW9} units in a tetrahedral fashion. Both polyanions were structurally and compositionally Characterized by single-crystal XRD, IR, therrnogravimetric analysis, and X-ray absorption,, spectroscopy. Furthermore, studies were performed probing, the magnetic, electrochemical, oxidation catalytic, and Li-ion battery performance of 1 and 2.
Author(s): Haider A, Ibrahim M, Bassil BS, Carey AM, Viet AN, Xing XL, Ayass WW, Minambres JF, Liu RJ, Zhang GJ, Keita B, Mereacre V, Powell AK, Balinski K, N'Diaye AT, Kupper K, Chen HY, Stimming U, Kortz U
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
Year: 2016
Volume: 55
Issue: 6
Pages: 2755-2764
Online publication date: 02/03/2016
Acceptance date: 01/01/1900
Date deposited: 05/05/2016
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: American Chemical Society
URL: http://dx.doi.org/10.1021/acs.inorgchem.5b02503
DOI: 10.1021/acs.inorgchem.5b02503
Altmetrics provided by Altmetric
