“…Amongst the non-noble metals, nickel provides a relatively high activity for both CC and CO hydrogenation, even in the presence of water. Supported Ni over SiO 2 , 34,35 MgO, 36,37 LDH, 38,39 TiO 2 , 40,41 and Al 2 O 3 (ref. 42 and 43) has been successfully applied for the hydrogenation of aldehydes to alcohols.…”