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Bimetallic Au:Pd nanoparticle supported on MgO for the oxidation of benzyl alcohol

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Abstract

The solvent free oxidation of benzyl alcohol to Benzaldehyde using bimetallic alloy nanoparticles supported over magnesia is a benign and improved frontier in catalysis. Benzaldehyde is an important industrial feed stock of immense significance in plastic, fine and chemical industries. In this study 1% Au:Pd NPs was synthesized using sol immobilization method over different magnesia (MgO) supports. The composite nanoalloys were characterized using Nitrogen adsorption BET, X- ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). The efficacy of Pd:Au/MgO, as a basic solid catalyst, has been tested for benzyl alcohol oxidation. The synthesized composite catalyst Pd:Au/MgO-4 showed high initial activity for freshly prepared catalysts with remarkable activity. This activity declined rapidly with number of runs, which could result from sintering of the support, agglomeration and leaching of active phase. Furthermore, MgO-3 exhibits good stability after 2nd runs, while MgO-5 and MgO-2 revealed marked increasing in activity after the 2nd runs due surface modification and exposure of active sites during reaction.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Ha’il University, P. O. Box 2440, Ha’il, Saudi Arabia

    Hamed M. Alshammari & Jamal R. Humaidi

  2. Chemistry Department, College of Science, Jouf University, P. O. Box 2014, Sakaka, Saudi Arabia

    Mosaed S. Alhumaimess & Hassan M. A. Hassan

  3. Department of Chemistry, College of Science and Human Studies at Hautat Sudair, Majmaah University, P.O. Box 66, Majmaah, 11952, Saudi Arabia

    Obaid F. Aldosari

  4. Chemistry Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University, P.O. Box 83, Alkharj, 11942, Saudi Arabia

    Obaid F. Aldosari

  5. National Centre for Petrochemicals Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia

    Mohammad H. Alotaibi

  6. Department of Chemistry, Faculty of Science, Suez University, Suez, Egypt

    Hassan M. A. Hassan

  7. Department of Pure and Applied Chemistry, Kebbi State University of Science and Technology, Aliero, Nigeria

    Ibrahim Wawata

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  1. Hamed M. Alshammari
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  2. Jamal R. Humaidi
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  3. Mosaed S. Alhumaimess
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  4. Obaid F. Aldosari
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  7. Ibrahim Wawata
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Correspondence to Hamed M. Alshammari.

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Alshammari, H.M., Humaidi, J.R., Alhumaimess, M.S. et al. Bimetallic Au:Pd nanoparticle supported on MgO for the oxidation of benzyl alcohol. Reac Kinet Mech Cat 128, 97–108 (2019). https://doi.org/10.1007/s11144-019-01639-0

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  • DOI: https://doi.org/10.1007/s11144-019-01639-0

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