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Syntheses, Crystal Structure, Electrocatalytic, and Magnetic Properties of the Monolanthanide-Containing Germanotungstates [Ln(H$_{2}$O)$_{n}$GeW$_{11}$O$_{39}$]$^{5-}$ (Ln = Dy, Er, n = 4,3)

Ibrahim, M. 1; Mbomekallé, I. M.; De Oliveira, P.; Baksi, A. 1; Carter, A. B. 2; Peng, Y. 2; Bergfeldt, T. ORCID iD icon 3; Malik, S. 1; Anson, C. E. 2
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)
3 Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP), Karlsruher Institut für Technologie (KIT)


Two monolanthanide-containing polyanions based on monolacunary Keggin germanotungstates [Ln(H2O)nGeW11O39]5− (Ln = Dy, Er, n = 4,3) have been synthesized in simple one-pot synthetic procedure and compositionally characterized in solid state by single-crystal X-ray diffraction, powder X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and elemental analysis. Electronic absorption and emission spectra of the title compounds in solution were also studied. The [DyIII(H2O)4GeW11O39]5− Keggin POM exhibits a slow relaxation of magnetization. The cyclic voltammetry measurements and mass spectrometry were carried out to check the stability of the compounds in solution. Both polyanions prove efficient in the electrocatalytic reduction of nitrite. To our knowledge, this observation establishes the first example of electrocatalysis of nitrite reduction by all inorganic monolanthanidecontaining germanotungstates family.

Verlagsausgabe §
DOI: 10.5445/IR/1000104823
Veröffentlicht am 07.02.2020
DOI: 10.1021/acsomega.9b02846
Zitationen: 12
Zitationen: 11
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP)
Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2470-1343
KITopen-ID: 1000104823
HGF-Programm 43.21.04 (POF III, LK 01) Molecular Engineering
Erschienen in ACS omega
Verlag American Chemical Society (ACS)
Band 4
Heft 26
Seiten 21873-21882
Nachgewiesen in Dimensions
Web of Science
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