Oxidation of benzyl alcohol and carbon monoxide using gold nanoparticles supported on MnO₂ nanowire microspheres

Authors

Mosaed Alhumaimess, Cardiff University
Zhongjie Lin, Cardiff University
Qian He, Lehigh University
Li Lu, Lehigh University
Nikolaos Dimitratos, Cardiff University
Nicholas F. Dummer, Cardiff UniversityFollow
Marco Conte, Cardiff University
Stuart H. Taylor, Cardiff UniversityFollow
Christopher J. Kiely, Lehigh University
Graham J. Hutchings, Cardiff University

RIS ID

105463

Publication Details

Alhumaimess, M., Lin, Z., He, Q., Lu, L., Dimitratos, N., Dummer, N. F., Conte, M., Taylor, S. H., Kiely, C. J. & Hutchings, G. J. (2014). Oxidation of benzyl alcohol and carbon monoxide using gold nanoparticles supported on MnO₂ nanowire microspheres. Chemistry: A European Journal, 20 (6), 1701-1710.

Abstract

MnO2 was synthesised as a catalyst support material using a hydrothermal method. This involved reacting MnSO4⋅H2O and (NH4)2S2O8 at 120 °C for a range of crystallisation times, which affords control over the morphology and phase composition of the MnO2 formed. Gold was deposited on these supports using sol-immobilisation, impregnation and deposition precipitation methods, and the resultant materials were used for the oxidation of benzyl alcohol and carbon monoxide. The effect of the support morphology on the dispersion of the gold nanoparticles and the consequent effect on the catalytic performance is described and discussed.