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Microwave Synthesis of Alkali‐Free Hexaniobate, Decaniobate, and Hexatantalate Polyoxometalate Ions
Author(s) -
Rambaran Mark A.,
PascualBorràs Magda,
Ohlin C. André
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900750
Subject(s) - chemistry , polyoxometalate , anhydrous , alkali metal , niobium pentoxide , hydrothermal synthesis , inorganic chemistry , pentoxide , phosphorus pentoxide , niobium , microwave , hydrothermal circulation , niobium oxide , ion , organic chemistry , vanadium , chemical engineering , catalysis , physics , quantum mechanics , engineering
Microwave preparation of polyoxoniobates and ‐tantalates afford a more rapid alternative to conventional hydrothermal methods of synthesis, in addition to allowing for the use of anhydrous niobium pentoxide in lieu of niobic acid, albeit with diminished yields. Limitations associated with the pH at which different oxides can be activated and how this affects the accessibility of different products are also discussed.