首页|Self-coupling reactions of terminal alkynes catalyzed by nanorod-like metalloporphyrin organic frameworks encapsulated with copper nanoparticles:Synergistic catalytic effects of dual copper structures
Self-coupling reactions of terminal alkynes catalyzed by nanorod-like metalloporphyrin organic frameworks encapsulated with copper nanoparticles:Synergistic catalytic effects of dual copper structures
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NSTL
By encapsulating metal nanoparticles(NPs),the synergistic effect between the metalloporphyrins and the metal nanoparticles in metalloporphyrin organic frameworks(P-MOFs)can boost its catalytic performance.The self-coupling reaction of terminal alkynes is a kind of important organic reaction and can take place with the aid of the catalyst.A nanorod-like metal-organic skeleton PCN-222(Cu)with carboxy porphyrins as ligands was synthesized as the precursor.By a double-solvent approach,the composite catalysts with varying copper nano-loadings in PCN-222(Cu)pores were obtained.Among them,1.9 wt% of Cu NPs in Cu@PCN-222(Cu)has excellent catalytic activity and stability for the self-coupling reaction of terminal alkynes.PCN-222(Cu)can stabilize the Cu NPs,control the size selectivity and crystal form.The copper porphyrins and Cu NPs in Cu@PCN-222(Cu)both serve as the catalytic active sites.This strategy,which using porphyrin-structured MOFs to construct dual active sites with the same element,has promising applications in MOFs catalysis.
NSTL
