Identification of vanadium species involved in sequential redox operation of VPO catalysts Academic Article uri icon

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. 2000 Elsevier Science B.V. All rights reserved.

published proceedings

  • APPLIED CATALYSIS A-GENERAL

author list (cited authors)

  • Wang, D. X., Kung, H. H., & Barteau, M. A.

citation count

  • 46

complete list of authors

  • Wang, DX||Kung, HH||Barteau, MA

publication date

  • July 2000