Selective Semihydrogenation of Alkynes Catalyzed by Pd Nanoparticles Immobilized on Heteroatom‐Doped Hierarchical Porous Carbon Derived from Bamboo Shoots

Abstract

Highly dispersed palladium nanoparticles (Pd NPs) immobilized on heteroatom-doped hierarchical porous carbon supports (N,O-carbon) with large specific surface areas are synthesized by a wet chemical reduction method. The N,O-carbon derived from naturally abundant bamboo shoots is fabricated by a tandem hydrothermal-carbonization process without assistance of any templates, chemical activation reagents, or exogenous N or O sources in a simple and ecofriendly manner. The prepared Pd/N,O-carbon catalyst shows extremely high activity and excellent chemoselectivity for semihydrogenation of a broad range of alkynes to versatile and valuable alkenes under ambient conditions. The catalyst can be readily recovered for successive reuse with negligible loss in activity and selectivity, and is also applicable for practical gram-scale reactions.

Pyridinic Nitrogen‐Doped Graphene Nanoshells Boost the Catalytic Efficiency of Palladium Nanoparticles for the N‐Allylation Reaction

“…[11][12][13] Previous studies have demonstrated that the interactions between catalytic speciesa nd the support play significant roles in the catalytic activity and stability. [24][25][26] Nitrogen doping can efficiently promote the overall catalytic activity and selectivityb ym odifying the interactions between In this study,n itrogen-doped graphene nanoshells (N-GNS) were developedt os upport palladium nanoparticles (Pd/N-GNS) as an efficient and recyclable catalyst for the N-allylation reaction. ],c arbon materials provide versatile substrates for metallicc atalysts owing to their unique physicochemical properties, such as controllable morphology, high surfacea rea, thermala nd chemical stability, and the availability for chemical modifications.…”

“…Recently,n itrogendoped carbon materials have been reported to be promising matrixes for Pd NPs in variousc hemical transformations. [24][25][26] Nitrogen doping can efficiently promote the overall catalytic activity and selectivityb ym odifying the interactions between In this study,n itrogen-doped graphene nanoshells (N-GNS) were developedt os upport palladium nanoparticles (Pd/N-GNS) as an efficient and recyclable catalyst for the N-allylation reaction. N-GNS was synthesized through af acile hard-template method by using petroleuma sphalt, followed by nitrogen doping by thermal annealing with urea, the contents and specieso fw hich could be altered by the calcination temperature.…”

Towards High‐Performance Electrocatalysts for Oxygen Reduction: Inducing Atomic‐Level Reconstruction of Fe‐Nx Site for Atomically Dispersed Fe/N‐Doped Hierarchically Porous Carbon

“…Recently,avariety of biomass materials (e.g.,p ig bone, [24] fish scale, [25] barley straw, [26] and bamboo) [27] have been employed as precursors to synthesize HPCs, due to their versatile microstructures, rich heteroatom elements ands ustainable resource.A mong them, animal bones that possess au nique three dimensional( 3D) ordered microstructure, with apatite minerals being sandwiched among the collagen fibrils, are regarded as the promising precursors for the synthesis of HPCs. [28] The collagen fibrilsi na nimal bones are attractive as the carbon precursors, with nitrogen as dopant, to form Ndoped carbon materials, while the apatite mineralsc an act as ah ard template to control the porous structure,r esulting in a 3D hierarchically porousc arbon network with rich N-doping and large SSA.…”

Metal Nanoparticles Supported on Biomass‐Derived Hierarchical Porous Heteroatom‐Doped Carbon from Bamboo Shoots: Design, Synthesis and Applications

“…For the preparation of N,O‐dual doped porous carbon, the fresh bamboo shoots were pretreated by slice, dry at 70 °C for 12 h and followed by grinding into powder for the hydrothermal process, and subsequently calcined at 850 °C in N 2 flow to produce the porous carbons(Figure ) …”