Abstract
The vanadium-incorporated molecular sieve VAPO-5 was synthesized hydrothermally and characterized by X-ray diffraction, electron paramagnetic resonance, thermogravimetric analysis, diffuse reflectance spectroscopy, chemical analysis and adsorption techniques. It seems that the vanadium is incorporated mainly as V4+ in the as-synthesized VAPO-5 framework. The vanadium in VAPO-5 exists in a well dispersed state and shows redox properties, changing its oxidation state readily between V4+ and V5+.
Original language | English |
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Pages (from-to) | 61-72 |
Number of pages | 12 |
Journal | Applied Catalysis |
Volume | 62 |
Issue number | 1 |
DOIs | |
State | Published - 1990 |
Keywords
- catalyst characterization (XRD
- catalyst preparation (crystallization)
- DRS)
- EPR
- molecular sieves
- TGA
- vanadium-aluminophosphate
- XPS