Title

Structural evolution and catalytic performance of DuPont V-P-O/SiO2 materials designed for fluidized bed applications

RIS ID

104898

Publication Details

Dummer, N. F., Weng, W., Kiely, C., Carley, A. F., Bartley, J. K., Kiely, C. J. & Hutchings, G. J. (2010). Structural evolution and catalytic performance of DuPont V-P-O/SiO2 materials designed for fluidized bed applications. Applied Catalysis A: General, 376 (1), 47-55.

Abstract

An industrial V-P-O catalyst (DuPont), comprising vanadyl pyrophosphate crystallites encapsulated by a silica shell, has been investigated. Reaction evaluation for butane oxidation was conducted over (i) the catalyst precursor, (ii) the calcined precursor and (iii) equilibrated material (2 years on-line) in a fixed-bed reactor. Characterization was conducted on these three samples by XRD, SEM, TEM and XPS. The core-shell particles have also been examined with a novel X-ray ultramicroscopy (XuM) technique which reveals the internal structure without having to section the material. The microstructural and surface compositional changes that have occurred over the course of its industrial lifespan in a fluidized bed reactor are correlated with the catalytic activity measurements.

Please refer to publisher version or contact your library.

Share

COinS
 

Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.apcata.2009.10.004