Atomic-dispersed Pt anchored on defect-rich porous alumina sheets (Pt/dp-Al2O3) was accessed via a wet impregnation combined with pyrolysis method. These nanosheets functionalized by atomic-dispersed Pt possess a high density of active sites, exhibiting an exceptional catalytic activity combined with cyclic performance in the diboration of alkynes. The selectivity and conversion yield could reach as high as 97% and 98%, respectively.
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