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Reaction Kinetics, Mechanisms and Catalysis

, Volume 128, Issue 1, pp 97–108 | Cite as

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

  • Hamed M. AlshammariEmail author
  • Jamal R. Humaidi
  • Mosaed S. Alhumaimess
  • Obaid F. Aldosari
  • Mohammad H. Alotaibi
  • Hassan M. A. Hassan
  • Ibrahim Wawata
Article
  • 23 Downloads

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.

Keywords

Au:Pd nanocatalysts Selective oxidation of alcohol Magnesium oxide 

Notes

Supplementary material

11144_2019_1639_MOESM1_ESM.docx (426 kb)
Supplementary material 1 (DOCX 426 kb)

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Hamed M. Alshammari
    • 1
    Email author
  • Jamal R. Humaidi
    • 1
  • Mosaed S. Alhumaimess
    • 2
  • Obaid F. Aldosari
    • 3
    • 4
  • Mohammad H. Alotaibi
    • 5
  • Hassan M. A. Hassan
    • 2
    • 6
  • Ibrahim Wawata
    • 7
  1. 1.Chemistry Department, Faculty of ScienceHa’il UniversityHa’ilSaudi Arabia
  2. 2.Chemistry Department, College of ScienceJouf UniversitySakakaSaudi Arabia
  3. 3.Department of Chemistry, College of Science and Human Studies at Hautat SudairMajmaah UniversityMajmaahSaudi Arabia
  4. 4.Chemistry Department, College of Science and HumanitiesPrince Sattam bin Abdulaziz UniversityAlkharjSaudi Arabia
  5. 5.National Centre for Petrochemicals TechnologyKing Abdulaziz City for Science and TechnologyRiyadhSaudi Arabia
  6. 6.Department of Chemistry, Faculty of ScienceSuez UniversitySuezEgypt
  7. 7.Department of Pure and Applied ChemistryKebbi State University of Science and TechnologyAlieroNigeria

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