Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO3-ZrO2

Y. Q. Song; C. L. Kang; Y. L. Feng; F. Liu; X. L. Zhou; J. A. Wang; L. Y. Xu

doi:10.1016/j.cattod.2009.02.044

Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO₃-ZrO₂

Y. Q. Song, C. L. Kang, Y. L. Feng, F. Liu, X. L. Zhou, J. A. Wang, L. Y. Xu

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A series of hydrous zirconia samples were prepared by hydrothermal method and the effects of the properties of hydrous zirconia on the catalytic activity of Pt/WO₃-ZrO₂ in the hexane isomerization were investigated. The catalysts were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and differential thermal analysis (TDA), H₂-temperature programmed reduction (H₂-TPR) and NH₃-temperature programmed desorption (NH₃-TPD). The results showed that the hydrothermal treatment under different times and pH values led to remarkable changes in the properties (such as hydroxyl group, ordering degree and thermal stability) of hydrous zirconia. Moreover, the isomerization activity of Pt/WO₃-ZrO₂ varied distinctly with the hydrothermal treatment condition of hydrous zirconia. The correlation between the properties of hydrous zirconia and the isomerization activity of the catalyst was primarily established. It was proposed that the isomerization activity was strongly dependent on the stability and ordering degree of hydrous zirconia, while it was irrelevant to the amount of hydroxyl groups in hydrous zirconia.

Original language	English
Pages (from-to)	63-69
Number of pages	7
Journal	Catalysis Today
Volume	148
Issue number	1-2
DOIs	https://doi.org/10.1016/j.cattod.2009.02.044
State	Published - 30 Oct 2010
Externally published	Yes

Keywords

Hydrothermal treatment
Hydrous zirconia
Isomerization
Pt/WO-ZrO
n-Hexane

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10.1016/j.cattod.2009.02.044

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title = "Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO3-ZrO2",

abstract = "A series of hydrous zirconia samples were prepared by hydrothermal method and the effects of the properties of hydrous zirconia on the catalytic activity of Pt/WO3-ZrO2 in the hexane isomerization were investigated. The catalysts were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and differential thermal analysis (TDA), H2-temperature programmed reduction (H2-TPR) and NH3-temperature programmed desorption (NH3-TPD). The results showed that the hydrothermal treatment under different times and pH values led to remarkable changes in the properties (such as hydroxyl group, ordering degree and thermal stability) of hydrous zirconia. Moreover, the isomerization activity of Pt/WO3-ZrO2 varied distinctly with the hydrothermal treatment condition of hydrous zirconia. The correlation between the properties of hydrous zirconia and the isomerization activity of the catalyst was primarily established. It was proposed that the isomerization activity was strongly dependent on the stability and ordering degree of hydrous zirconia, while it was irrelevant to the amount of hydroxyl groups in hydrous zirconia.",

keywords = "Hydrothermal treatment, Hydrous zirconia, Isomerization, Pt/WO-ZrO, n-Hexane",

author = "Song, {Y. Q.} and Kang, {C. L.} and Feng, {Y. L.} and F. Liu and Zhou, {X. L.} and Wang, {J. A.} and Xu, {L. Y.}",

note = "Funding Information: We acknowledge the financial support of this work from Ministry of Science and Technology of PR China (No. 2004CB720603) and Postdoctoral Science Foundation of PR China (200800430081). ",

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AU - Song, Y. Q.

AU - Kang, C. L.

AU - Feng, Y. L.

AU - Liu, F.

AU - Zhou, X. L.

AU - Wang, J. A.

AU - Xu, L. Y.

N1 - Funding Information: We acknowledge the financial support of this work from Ministry of Science and Technology of PR China (No. 2004CB720603) and Postdoctoral Science Foundation of PR China (200800430081).

PY - 2010/10/30

Y1 - 2010/10/30

N2 - A series of hydrous zirconia samples were prepared by hydrothermal method and the effects of the properties of hydrous zirconia on the catalytic activity of Pt/WO3-ZrO2 in the hexane isomerization were investigated. The catalysts were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and differential thermal analysis (TDA), H2-temperature programmed reduction (H2-TPR) and NH3-temperature programmed desorption (NH3-TPD). The results showed that the hydrothermal treatment under different times and pH values led to remarkable changes in the properties (such as hydroxyl group, ordering degree and thermal stability) of hydrous zirconia. Moreover, the isomerization activity of Pt/WO3-ZrO2 varied distinctly with the hydrothermal treatment condition of hydrous zirconia. The correlation between the properties of hydrous zirconia and the isomerization activity of the catalyst was primarily established. It was proposed that the isomerization activity was strongly dependent on the stability and ordering degree of hydrous zirconia, while it was irrelevant to the amount of hydroxyl groups in hydrous zirconia.

AB - A series of hydrous zirconia samples were prepared by hydrothermal method and the effects of the properties of hydrous zirconia on the catalytic activity of Pt/WO3-ZrO2 in the hexane isomerization were investigated. The catalysts were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and differential thermal analysis (TDA), H2-temperature programmed reduction (H2-TPR) and NH3-temperature programmed desorption (NH3-TPD). The results showed that the hydrothermal treatment under different times and pH values led to remarkable changes in the properties (such as hydroxyl group, ordering degree and thermal stability) of hydrous zirconia. Moreover, the isomerization activity of Pt/WO3-ZrO2 varied distinctly with the hydrothermal treatment condition of hydrous zirconia. The correlation between the properties of hydrous zirconia and the isomerization activity of the catalyst was primarily established. It was proposed that the isomerization activity was strongly dependent on the stability and ordering degree of hydrous zirconia, while it was irrelevant to the amount of hydroxyl groups in hydrous zirconia.

KW - Hydrothermal treatment

KW - Hydrous zirconia

KW - Isomerization

KW - Pt/WO-ZrO

KW - n-Hexane

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Effect of the properties of hydrous zirconia prepared under various hydrothermal conditions on the isomerization activity of Pt/WO₃-ZrO₂

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Keywords

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