Abstract
A vanadyl pyrophosphate (VPO) catalyst was investigated for its sequential reduction and oxidation ability for butane oxidation, using a novel oscillating microbalance reactor. Correlation of the redox kinetics with the identities of the vanadium species obtained by potentiometric titration methods suggests that only the near-surface oxygen is readily available for the oxidation of butane; effective redox cycles can only occur between V5+ and V4+; accumulation of V3+ species represents one mode of catalyst deactivation.
Original language | English (US) |
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Pages (from-to) | 203-213 |
Number of pages | 11 |
Journal | Applied Catalysis A: General |
Volume | 201 |
Issue number | 2 |
DOIs | |
State | Published - Jul 10 2000 |
Keywords
- Maleic anhydride
- Oxidation of butane
- Preparation
- Redox properties
- VPO catalysts
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology