Pd–Mn/NC Dual Single-Atomic Sites with Hollow Mesopores for the Highly Efficient Semihydrogenation of Phenylacetylene

The direct pyrolysis of metal-zeolite imidazolate frameworks (M-ZIFs) has been widely recognized as the predominant approach for synthesizing atomically dispersed metal–nitrogen-carbon single-atom catalysts (M/NC-SACs), which have exhibited exceptional activity and selectivity in the semihydrogenation of acetylene. However, due to weak adsorption of reactants on the single site and restricted molecular diffusion, the semihydrogenation of large organic molecules (e.g., phenylacetylene) was greatly limited for M/NC-SACs. In this work, a dual single-atom catalyst (h–Pd-Mn/NC) with hollow mesopores was designed and prepared using a general host–guest strategy. Taking the semihydrogenation of phenylacetylene as an…

• NN
  National Natural Science Foundation of China

  Awards: 21890383, 22102214, 22388102
• CP
  China Postdoctoral Science Foundation

  Award: 2022M711783
• NS
  Natural Science Foundation of Shandong Province

  Award: ZR2021QB039
• NK
  National Key Research and Development Program of China

  Award: 2018YFA0702003