MgO-modified VOx/SBA-15 as catalysts for the oxidative dehydrogenation of n-butane

Wei Liu; Suk Yin Lai; Hongxing Dai; Shuiju Wang; Haizhen Sun; Chak Tong Au

doi:10.1016/j.cattod.2007.10.054

MgO-modified VO_x/SBA-15 as catalysts for the oxidative dehydrogenation of n-butane

Wei Liu, Suk Yin Lai, Hongxing Dai, Shuiju Wang, Haizhen Sun, Chak Tong Au^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

28 Citations (Scopus)

Abstract

VO_x catalysts supported on SBA-15 with and without MgO modification were prepared and characterized by N₂ adsorption-desorption, XRD, HRTEM, H₂-TPR, NH₃-TPD and XPS. Compared to the VO_x/SBA-15 catalyst, the VO_x/MgO/SBA-15 ones exhibit much higher C₄-olefins selectivity and yield in the oxidative dehydrogenation of n-butane. The enhanced performance can be attributed to the rise in VO_x reducibility as well as to the relatively lower acidity of the MgO-modified SBA-15 materials.

Original language	English
Pages (from-to)	450-456
Number of pages	7
Journal	Catalysis Today
Volume	131
Issue number	1-4
DOIs	https://doi.org/10.1016/j.cattod.2007.10.054
Publication status	Published - 29 Feb 2008

Scopus Subject Areas

Catalysis
Chemistry(all)

User-Defined Keywords

Mesoporous SBA-15
MgO modification
n-Butane
Oxidative dehydrogenation
Vanadium oxide

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10.1016/j.cattod.2007.10.054

Cite this

@article{d57b34bbe1c24773b8a6f268030b5272,

title = "MgO-modified VOx/SBA-15 as catalysts for the oxidative dehydrogenation of n-butane",

abstract = "VOx catalysts supported on SBA-15 with and without MgO modification were prepared and characterized by N2 adsorption-desorption, XRD, HRTEM, H2-TPR, NH3-TPD and XPS. Compared to the VOx/SBA-15 catalyst, the VOx/MgO/SBA-15 ones exhibit much higher C4-olefins selectivity and yield in the oxidative dehydrogenation of n-butane. The enhanced performance can be attributed to the rise in VOx reducibility as well as to the relatively lower acidity of the MgO-modified SBA-15 materials.",

keywords = "Mesoporous SBA-15, MgO modification, n-Butane, Oxidative dehydrogenation, Vanadium oxide",

author = "Wei Liu and Lai, {Suk Yin} and Hongxing Dai and Shuiju Wang and Haizhen Sun and Au, {Chak Tong}",

note = "Funding Information: The work was supported by the Hong Kong Baptist University (FRG/06-07/II-10); the research activities conducted in BJUT was financed by the National Natural Science Foundation of PR China (Grant No. 20473006).",

year = "2008",

month = feb,

day = "29",

doi = "10.1016/j.cattod.2007.10.054",

language = "English",

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journal = "Catalysis Today",

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T1 - MgO-modified VOx/SBA-15 as catalysts for the oxidative dehydrogenation of n-butane

AU - Liu, Wei

AU - Lai, Suk Yin

AU - Dai, Hongxing

AU - Wang, Shuiju

AU - Sun, Haizhen

AU - Au, Chak Tong

N1 - Funding Information: The work was supported by the Hong Kong Baptist University (FRG/06-07/II-10); the research activities conducted in BJUT was financed by the National Natural Science Foundation of PR China (Grant No. 20473006).

PY - 2008/2/29

Y1 - 2008/2/29

N2 - VOx catalysts supported on SBA-15 with and without MgO modification were prepared and characterized by N2 adsorption-desorption, XRD, HRTEM, H2-TPR, NH3-TPD and XPS. Compared to the VOx/SBA-15 catalyst, the VOx/MgO/SBA-15 ones exhibit much higher C4-olefins selectivity and yield in the oxidative dehydrogenation of n-butane. The enhanced performance can be attributed to the rise in VOx reducibility as well as to the relatively lower acidity of the MgO-modified SBA-15 materials.

AB - VOx catalysts supported on SBA-15 with and without MgO modification were prepared and characterized by N2 adsorption-desorption, XRD, HRTEM, H2-TPR, NH3-TPD and XPS. Compared to the VOx/SBA-15 catalyst, the VOx/MgO/SBA-15 ones exhibit much higher C4-olefins selectivity and yield in the oxidative dehydrogenation of n-butane. The enhanced performance can be attributed to the rise in VOx reducibility as well as to the relatively lower acidity of the MgO-modified SBA-15 materials.

KW - Mesoporous SBA-15

KW - MgO modification

KW - n-Butane

KW - Oxidative dehydrogenation

KW - Vanadium oxide

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DO - 10.1016/j.cattod.2007.10.054

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JO - Catalysis Today

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