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Synthesis characterization and catalytic evaluation of Ni/ZrO2/SiO2 aerogels catalysts

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Abstract

The Ni/ZrO2/SiO2 aerogels catalysts were synthesized via three different routes: (i) impregnation ZrO2–SiO2 composite aerogels with a aqueous solution of Ni(NO3)2, (ii) impregnation SiO2 aerogels with a mixed aqueous solution of Ni(NO3)2 and ZrO(NO3)2 · 2H2O, (iii) one-pot sol–gel procedure from precursors Ni(NO3)2/ZrO(NO3)2 · 2H2O/Si(OC2H5)4. These catalysts were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), ammonia temperature-programmed desorption (NH3-TPD), N2 adsorption–desorption isotherms and Fourier transform infrared (FT-IR). The Liquid-phase hydrogenation of maleic anhydride (MA) was performed over these catalysts. The results revealed that the different preparation routes result in a difference between the obtained samples, concerning the crystal structure and composition, surface acidity, mixed level of each component, texture, and catalytic selectivity.

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Acknowledgements

This work is supported by the national hi-tech research and development program of China (863 program, 2005AA001050) and natural science foundation of Shanxi province (20041017).

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Authors and Affiliations

  1. Engineering Research Center of Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan, 030006, China

    Chun-guang Gao, Yong-xiang Zhao & Yin Zhang

  2. Institute of Applied Chemistry, Shanxi University, Taiyuan, 030006, China

    Dian-sheng Liu

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  1. Chun-guang Gao
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  2. Yong-xiang Zhao
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  3. Yin Zhang
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  4. Dian-sheng Liu
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Correspondence to Yong-xiang Zhao or Dian-sheng Liu.

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Gao, Cg., Zhao, Yx., Zhang, Y. et al. Synthesis characterization and catalytic evaluation of Ni/ZrO2/SiO2 aerogels catalysts. J Sol-Gel Sci Technol 44, 145–151 (2007). https://doi.org/10.1007/s10971-007-1605-z

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  • DOI: https://doi.org/10.1007/s10971-007-1605-z

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