Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts

Kari E. Birkeland, Scott M. Babitz, Gregory K. Bethke, Harold H Kung, George W. Coulston, Simon R. Bare

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

SiO2-supported VPO catalysts with different P/V ratios were prepared, used in selective oxidation of butane, and characterized by X-ray diffraction (XRD), laser Raman spectroscopy (LRS), near-edge X-ray absorption spectroscopy (XANES), and 31P magic angle spinning NMR. Similar to the SiO2-supported catalysts of lower metal loadings studied previously, the maleic anhydride selectivity increased with increasing P/V ratio, to greater than 50 mol % for P/V = 2. XRD and LRS detected predominantly α1-VOPO4 or a phase that is structurally very similar for both P/V = 1 and P/V = 2 samples. However, within the detection limit of the XANES experiment, the P/V = 1 catalyst contained mostly V5+ under reaction conditions, whereas the P/V = 2 catalyst contained 100% V4+.

Original languageEnglish
Pages (from-to)6895-6902
Number of pages8
JournalJournal of Physical Chemistry B
Volume101
Issue number35
Publication statusPublished - Aug 28 1997

Fingerprint

X ray absorption spectroscopy
Laser spectroscopy
Butane
butanes
Catalyst supports
Raman spectroscopy
Maleic Anhydrides
X ray lasers
catalysts
X ray diffraction
Oxidation
oxidation
Catalysts
Magic angle spinning
Maleic anhydride
laser spectroscopy
absorption spectroscopy
x rays
Metals
Nuclear magnetic resonance

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Engineering(all)

Cite this

Birkeland, K. E., Babitz, S. M., Bethke, G. K., Kung, H. H., Coulston, G. W., & Bare, S. R. (1997). Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts. Journal of Physical Chemistry B, 101(35), 6895-6902.

Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts. / Birkeland, Kari E.; Babitz, Scott M.; Bethke, Gregory K.; Kung, Harold H; Coulston, George W.; Bare, Simon R.

In: Journal of Physical Chemistry B, Vol. 101, No. 35, 28.08.1997, p. 6895-6902.

Research output: Contribution to journalArticle

Birkeland, KE, Babitz, SM, Bethke, GK, Kung, HH, Coulston, GW & Bare, SR 1997, 'Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts', Journal of Physical Chemistry B, vol. 101, no. 35, pp. 6895-6902.
Birkeland, Kari E. ; Babitz, Scott M. ; Bethke, Gregory K. ; Kung, Harold H ; Coulston, George W. ; Bare, Simon R. / Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts. In: Journal of Physical Chemistry B. 1997 ; Vol. 101, No. 35. pp. 6895-6902.
@article{89cdaaa5f3a549ca8cd34c4c726ca1b8,
title = "Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts",
abstract = "SiO2-supported VPO catalysts with different P/V ratios were prepared, used in selective oxidation of butane, and characterized by X-ray diffraction (XRD), laser Raman spectroscopy (LRS), near-edge X-ray absorption spectroscopy (XANES), and 31P magic angle spinning NMR. Similar to the SiO2-supported catalysts of lower metal loadings studied previously, the maleic anhydride selectivity increased with increasing P/V ratio, to greater than 50 mol {\%} for P/V = 2. XRD and LRS detected predominantly α1-VOPO4 or a phase that is structurally very similar for both P/V = 1 and P/V = 2 samples. However, within the detection limit of the XANES experiment, the P/V = 1 catalyst contained mostly V5+ under reaction conditions, whereas the P/V = 2 catalyst contained 100{\%} V4+.",
author = "Birkeland, {Kari E.} and Babitz, {Scott M.} and Bethke, {Gregory K.} and Kung, {Harold H} and Coulston, {George W.} and Bare, {Simon R.}",
year = "1997",
month = "8",
day = "28",
language = "English",
volume = "101",
pages = "6895--6902",
journal = "Journal of Physical Chemistry B",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "35",

}

TY - JOUR

T1 - Supported VPO catalysts for selective oxidation of butane. II. Characterization of VPO/SiO2 catalysts

AU - Birkeland, Kari E.

AU - Babitz, Scott M.

AU - Bethke, Gregory K.

AU - Kung, Harold H

AU - Coulston, George W.

AU - Bare, Simon R.

PY - 1997/8/28

Y1 - 1997/8/28

N2 - SiO2-supported VPO catalysts with different P/V ratios were prepared, used in selective oxidation of butane, and characterized by X-ray diffraction (XRD), laser Raman spectroscopy (LRS), near-edge X-ray absorption spectroscopy (XANES), and 31P magic angle spinning NMR. Similar to the SiO2-supported catalysts of lower metal loadings studied previously, the maleic anhydride selectivity increased with increasing P/V ratio, to greater than 50 mol % for P/V = 2. XRD and LRS detected predominantly α1-VOPO4 or a phase that is structurally very similar for both P/V = 1 and P/V = 2 samples. However, within the detection limit of the XANES experiment, the P/V = 1 catalyst contained mostly V5+ under reaction conditions, whereas the P/V = 2 catalyst contained 100% V4+.

AB - SiO2-supported VPO catalysts with different P/V ratios were prepared, used in selective oxidation of butane, and characterized by X-ray diffraction (XRD), laser Raman spectroscopy (LRS), near-edge X-ray absorption spectroscopy (XANES), and 31P magic angle spinning NMR. Similar to the SiO2-supported catalysts of lower metal loadings studied previously, the maleic anhydride selectivity increased with increasing P/V ratio, to greater than 50 mol % for P/V = 2. XRD and LRS detected predominantly α1-VOPO4 or a phase that is structurally very similar for both P/V = 1 and P/V = 2 samples. However, within the detection limit of the XANES experiment, the P/V = 1 catalyst contained mostly V5+ under reaction conditions, whereas the P/V = 2 catalyst contained 100% V4+.

UR - http://www.scopus.com/inward/record.url?scp=0031207046&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031207046&partnerID=8YFLogxK

M3 - Article

VL - 101

SP - 6895

EP - 6902

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 35

ER -