Selective Oxidation of D-Galactose over Gold Catalysts (pages 1789–1798)
Bright T. Kusema, Dr. Betiana C. Campo, Olga A. Simakova, Anne-Riika Leino, Dr. Krisztián Kordás, Dr. Päivi Mäki-Arvela, Prof. Tapio Salmi and Prof. Dmitry Yu Murzin
Article first published online: 20 SEP 2011 | DOI: 10.1002/cctc.201100183
Gold takes over from palladium and platinum: The selective oxidation of D-galactose to galactonic acid over gold catalysts is studied isothermally in a semi-batch shaker reactor under pH-controlled conditions. The catalytic properties of the gold nanoparticles are affected by the cluster size. Au/Al2O3 with a mean particle size of 2.6 nm exhibits the highest activity. Alkaline conditions are characterized by high catalyst activity and high selectivity to aldonic acid.