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Oxidation of Aliphatic Alcohols by Using Precious Metals Supported on Hydrotalcite under Solvent‐ and Base‐Free Conditions
Author(s) -
He Yufei,
Feng Junting,
Brett Gemma L.,
Liu Yanan,
Miedziak Peter J.,
Edwards Jennifer K.,
Knight David W.,
Li Dianqing,
Hutchings Graham J.
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500503
Subject(s) - hydrotalcite , chemistry , base (topology) , base metal , solvent , alcohol oxidation , organic chemistry , catalysis , green chemistry , inorganic chemistry , materials science , reaction mechanism , metallurgy , mathematical analysis , mathematics , welding
Precious metal nanoparticles supported on magnesium–aluminum hydrotalcite (HT), TiO 2 , and MgO were prepared by sol immobilization and assessed for the catalytic oxidation of octanol, which is a relatively unreactive aliphatic alcohol, with molecular oxygen as the oxidant under solvent‐ and base‐free conditions. Compared with the TiO 2 ‐ and MgO‐supported catalysts, platinum HT gave the highest activity and selectivity towards the aldehyde. The turnover number achieved for the platinum HT catalyst was >3700 after 180 min under mild reaction conditions. Moreover, the results for the oxidation of different substrates indicate that a specific interaction of octanal with the platinum HT catalyst could lead to deactivation of the catalyst.