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Cover Picture: Unusual Phase Evolution in MoVTeNb Oxide Catalysts Prepared by a Novel Acrylamide‐Gelation Route (ChemCatChem 4/2012)
Author(s) -
Kolen'ko Yury V.,
Amakawa Kazuhiko,
d'Alcourt Raoul Naumann,
Girgsdies Frank,
Weinberg Gisela,
Schlögl Robert,
Trunschke Annette
Publication year - 2012
Publication title -
chemcatchem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201290008
Subject(s) - catalysis , oxide , calcination , chemistry , acrylamide , phase (matter) , metal , propane , nanocrystal , alkane , inorganic chemistry , combinatorial chemistry , chemical engineering , polymer chemistry , materials science , organic chemistry , nanotechnology , polymer , copolymer , engineering
Synthesis of complex oxidation catalysts The cover picture illustrates structure and crystal morphology of two important phases occurring in complex multi‐metal oxide catalysts for oxidative activation of small alkane molecules. The desired single‐step synthesis of valuable products by selective C‐H bond activation involving complex reaction mechanisms and various intermediates gives rise to high demands on the catalyst. Only the MoVTeNb oxide M1 phase on the left side accomplishes the direct oxidation of propane to acrylic acid in one step, while the (Mo,V,Nb) 5 O 14 oxide on the right is rather inactive. In the full paper on p. 495 ff. Y. V. Kolen'ko et al. describe the synthesis of M1 by an acrylamide‐gelation approach yielding initially a blue gel. Subsequent microwave‐assisted drying and calcination facilitated the formation of M1 nanocrystals with modified properties at unexpected low temperatures.