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Effect of pH on the Catalytic Properties of Mo–V–Te–P–O Catalysts for Selective Oxidation of Isobutane

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Abstract

Mo–V–Te–P mixed oxide catalysts, prepared by a dry-up method at various pHs (in the range of about 1.0–9.0), have been tested in the partial oxidation of isobutane. The best catalytic performance was achieved over a catalyst prepared at a pH about 7.0. In this case, high selectivity to methacrolein (37.0%) at an isobutane conversion of 12.7% has been obtained at 380 °C. The surface V4+/V5+ ratios of the calcined samples were strongly influenced by the pH in the synthesized solution, which is one of the key factors in the catalytic performance for selective oxidation of isobutane.

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Acknowledgments

This work was supported by the National Basic Research Program of China (2004CB217804) and the National Natural Science Foundation of China (20673046).

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Authors and Affiliations

  1. College of Chemistry, Jilin University, 130023, Changchun, People’s Republic of China

    Jingqi Guan, Hongsu Wang, Ying Yang, Bo Liu, Xiaofang Yu, Yuanyuan Ma & Qiubin Kan

  2. Jiefang Road 2519, 130021, Changchun, People’s Republic of China

    Qiubin Kan

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  1. Jingqi Guan
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  2. Hongsu Wang
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  3. Ying Yang
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  4. Bo Liu
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  5. Xiaofang Yu
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Correspondence to Qiubin Kan.

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Guan, J., Wang, H., Yang, Y. et al. Effect of pH on the Catalytic Properties of Mo–V–Te–P–O Catalysts for Selective Oxidation of Isobutane. Catal Lett 131, 512–516 (2009). https://doi.org/10.1007/s10562-009-9933-y

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  • DOI: https://doi.org/10.1007/s10562-009-9933-y

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