Abstract
AlPO4-SOD, a microporous aluminophosphate, was synthesized in a quasi-nonaqueous medium using dimethylformamide as solvent and template. The as-synthesized, dehydrated, calcined materials and the corresponding rehydrated phases were investigated by various solid-state nuclear magnetic resonance (NMR) and powder X-ray diffraction techniques. Structural data from the NMR study are in a very good agreement with the as-synthesized AlPO4-SOD structure refined from powder synchrotron data. 31P homonuclear correlation and 31P/27Al 3QHETCOR experiments allowed the complete assignment of 31P and 27Al resonances to the corresponding crystallographic sites. 31P and 27Al NMR spectra are drastically modified after dehydration at 200 °C and calcination at 800 °C. A possible structural rearrangement of the template molecules is proposed that explains NMR and XRD data of the dehydrated material. The structure of the calcined material solved by powder XRD is in agreement with the NMR data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
