▎ 摘　　要

NOVELTY - Hierarchical structure hybrid supported atomic precision gold nanocluster catalyst, having an expression of Aun/(M2+)A1-LDH/rGOT, where Aun is n gold atoms, n=25, 38, -127; M2+ in (M2+)A1-LDH/rGO is magnesium (II), nickel (II) and/or cobalt (II) ions; (M2+)Al-LDH nanosheets with a size of 55-70 nm and a thickness of 8-10 nm are grown vertically and staggered on both sides of the rGO sheet, showing a nanosheet-type array morphology; gold nanoclusters with sizes of 1plus minus0.3, 1.5plus minus0.3 and 1.8plus minus0.4 nm in the catalyst are highly dispersed at the edge of LDH and at the junction of LDH and rGO; and the active component in the catalyst is gold nano-cluster, and its mass percentage content is 0.5-1.5%, is new. USE - Used as hierarchical structure hybrid supported atomic precision gold nanocluster catalyst. ADVANTAGE - The catalyst has large specific surface area and more active sites, under the condition without adding alkali, the catalyst exhibits high activity and high selectivity in the process of benzylalcohol benzaldehyde without solvent and oxygen oxidation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the catalyst.