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Preparation, characterization, and oxidation catalysis of H3PMo12O40 heteropolyacid catalyst immobilized on carbon aerogel

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Abstract

Carbon aerogel (CA) with high surface area and large pore volume was prepared by polycondensation of resorcinol with formaldehyde. The surface of CA was then modified to have a positive charge, and thus to provide a site for the immobilization of H3PMo12O40 (PMo12) catalyst. By taking advantage of the overall negative charge of [PMo12O40]3−, PMo12 catalyst was chemically immobilized on the surface-modified CA as a charge matching component. It was found that PMo12 catalyst was finely dispersed on the CA support via chemical interaction. In the vaporphase 2-propanol conversion reaction, the PMo12/CA catalyst showed a higher 2-propanol conversion than the unsupported PMo12 catalyst. Furthermore, the PMo12/CA catalyst showed an enhanced oxidation catalytic activity (formation of acetone) and a suppressed acid catalytic activity (formation of propylene and isopropyl ether) compared to the unsupported PMo12 catalyst. The enhanced oxidation activity of PMo12/CA catalyst was due to fine dispersion of [PMo12O40]3− on the CA support formed via chemical immobilization.

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Authors and Affiliations

  1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul, 151-744, Korea

    Yongju Bang, Dong Ryul Park, Yoon Jae Lee & In Kyu Song

  2. Department of Chemical Engineering, Myongji University, San 38-2, Nam-dong, Yongin, Gyeonggi-do, 449-728, Korea

    Ji Chul Jung

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  1. Yongju Bang
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  2. Dong Ryul Park
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  3. Yoon Jae Lee
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  4. Ji Chul Jung
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  5. In Kyu Song
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Correspondence to In Kyu Song.

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Bang, Y., Park, D.R., Lee, Y.J. et al. Preparation, characterization, and oxidation catalysis of H3PMo12O40 heteropolyacid catalyst immobilized on carbon aerogel. Korean J. Chem. Eng. 28, 79–83 (2011). https://doi.org/10.1007/s11814-010-0335-z

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  • DOI: https://doi.org/10.1007/s11814-010-0335-z

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