Oxidation of Aliphatic Alcohols by Using Precious Metals Supported on Hydrotalcite under Solvent- and Base-Free Conditions.
Precious metal nanoparticles supported on magnesium-aluminum hydrotalcite (HT), TiO2 , 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 TiO2 - 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.
State Key Laboratory of Chemical Engineering, Beijing University of Chemical Technology, 98#, No.15, Beisanhuan East Road, Beijing, 100029, China.
Yufei
Y
He
State Key Laboratory of Chemical Engineering, Beijing University of Chemical Technology, 98#, No.15, Beisanhuan East Road, Beijing, 100029, China.
Junting
J
Feng
Cardiff Catalysis Institute, Cardiff University, Cardiff, CF10 3AT, UK.
Gemma L
GL
Brett
State Key Laboratory of Chemical Engineering, Beijing University of Chemical Technology, 98#, No.15, Beisanhuan East Road, Beijing, 100029, China.
Yanan
Y
Liu
Cardiff Catalysis Institute, Cardiff University, Cardiff, CF10 3AT, UK.
Peter J
PJ
Miedziak
Cardiff Catalysis Institute, Cardiff University, Cardiff, CF10 3AT, UK.
Jennifer K
JK
Edwards
Cardiff Catalysis Institute, Cardiff University, Cardiff, CF10 3AT, UK.
David W
DW
Knight
State Key Laboratory of Chemical Engineering, Beijing University of Chemical Technology, 98#, No.15, Beisanhuan East Road, Beijing, 100029, China. lidq@mail.buct.edu.cn.
Dianqing
D
Li
Cardiff Catalysis Institute, Cardiff University, Cardiff, CF10 3AT, UK. Hutch@Cardiff.ac.uk.
Graham J
GJ
Hutchings
D000438:Alcohols / Q000737:chemistry*; D000536:Aluminum Hydroxide / Q000737:chemistry*; D002384:Catalysis; D008276:Magnesium Hydroxide / Q000737:chemistry*; D008277:Magnesium Oxide / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry; D019216:Metals, Heavy / Q000737:chemistry*; D000442:Octanols / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D011312:Pressure; D013696:Temperature; D014025:Titanium / Q000737:chemistry
D000438:Alcohols; D019216:Metals, Heavy; D000442:Octanols; D016877:Oxidants; C009495:titanium dioxide; C010467:hydrotalcite; D008277:Magnesium Oxide; D000536:Aluminum Hydroxide; D014025:Titanium; D008276:Magnesium Hydroxide; D010100:Oxygen
heterogeneous catalysis; hydrotalcites; oxidation; supported catalysts; transition metals