Affiliation:
1. NingBo Sub-Academy of National Weapons Science Research Academy, Ningbo, Zhejiang, 315000, China
Abstract
The Ag nanoparticles with no need for reduction supported on MgAl-layered double hydroxide (LDH) were prepared. Ag nanoparticles (NPs) were achieved in the LDH support by in situ reduction, meanwhile, metal nickel generated by the reaction mechanisms of hydrogenation of citral. Sliver generates highly mobile atomic hydrogen, which reduces nickel by abstracting H from the surface support, and nickel nanoparticles formed after reaction. The action of sliver and nickelare conducive to higher selectivity to unsaturated aldehyde in Ag-[Ni(OH)2]X/LDH. The effects of support and sliver were explained by TEM, SEM, XRD and H2-TPR.