Temperature-induced transformations in CoAPO-34 molecular sieve: A combined in situ X-ray diffraction and FTIR study
Article Abstract:
An in situ X-ray synchrotron powder diffraction augmented with Fourier transform (FT) IR analysis is used to study the thermally induced processes of CoAPO-34, an aluminophosphate molecular sieve with chabasite-type structure. The results show that the bridged Co(super 2+)-O(H)-P hydroxyls are present after morpholine removal.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Cation migration and structural modification of Co-exchanged ferrierite upon heating: A time-resolved X-ray powder diffraction study
Article Abstract:
The in situ time-resolved analysis of Co-exchanged synthetic ferrierite is performed in the range 53-810 degree C by Rietveld refinements of powder diffraction data. It is reported that five cation sites are localized above 500 degree C.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Combined single-crystal X-ray diffraction and FTIR study of morpholinium-water molecular complexes embedded in a chabasite network
Article Abstract:
The location of morpholinium-water molecular complexes with the chabasite network is studied through X-ray diffraction and FTIR spectroscopy. The vibrational modes of the isolated organic molecules are investigated.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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