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Oxidation of Benzyl Alcohol and Carbon Monoxide Using Gold Nanoparticles Supported on MnO 2 Nanowire Microspheres
Author(s) -
Alhumaimess Mosaed,
Lin Zhongjie,
He Qian,
Lu Li,
Dimitratos Nickolaos,
Dummer Nicholas F.,
Conte Marco,
Taylor Stuart H.,
Bartley Jonathan K.,
Kiely Christopher J.,
Hutchings Graham J.
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201303355
Subject(s) - benzyl alcohol , carbon monoxide , catalysis , nanoparticle , materials science , alcohol , hydrothermal circulation , alcohol oxidation , chemical engineering , colloidal gold , precipitation , crystallization , nanowire , morphology (biology) , inorganic chemistry , chemistry , nanotechnology , organic chemistry , physics , biology , meteorology , engineering , genetics
MnO 2 was synthesised as a catalyst support material using a hydrothermal method. This involved reacting MnSO 4 ⋅ H 2 O and (NH 4 ) 2 S 2 O 8 at 120 °C for a range of crystallisation times, which affords control over the morphology and phase composition of the MnO 2 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.