Efficient electronic state regulation engineering on Pd single atom by the defect engineering of the BN support for acetylene semi-hydrogenation

Li, Xing; Li, Xiaonian

doi:10.1016/j.mcat.2024.114324

Molecular Catalysis

2024

DOI: 10.1016/j.mcat.2024.114324

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Efficient electronic state regulation engineering on Pd single atom by the defect engineering of the BN support for acetylene semi-hydrogenation

Xing Li,

Xiaonian Li

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2024

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Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline

Zhou,

Ding,

Chen

et al. 2024

ACS Appl. Nano Mater.

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The activation process is a key step in preparing porous carbon. Herein, three kinds of green activators were separately used to successfully prepare N-doped porous carbons through a two-step strategy: hydrothermal carbonization and chemical activation using microcrystalline cellulose as the carbon source and urea as the nitrogen source. Palladium was deposited on these N-doped microcrystalline cellulose-based carbons (NMC-X, where X represents the activator) via a traditional deposition–precipitation method, and the resulting Pd nanoparticle catalysts (Pd/NMC-X) showed high activity in the selective hydrogenation of quinoline under mild conditions, particularly Pd/NMC-ZC (ZC, zinc carbonate), which achieved complete conversion of quinoline within 100 min at 40 °C and 4 atm H2. Characterization results suggest that the high activity of Pd/NMC-ZC is mainly attributed to the special electronic structure of its Pd species, particularly the distribution of valence states and reducibility of Pd and the high hydrogen spillover capacity between Pd and NMC-ZC. The chemical activation by ZC leads to the formation of multiple defect sites on the carbon skeleton, modifying the carbon surface properties to enhance hydrogen spillover. This also provides an excellent environment for Pd nanoparticle anchoring, thus increasing the Pd-support interactions and regulating the electronic structure of Pd.

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Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline

Zhou,

Ding,

Chen

et al. 2024

ACS Appl. Nano Mater.

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show abstract

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Efficient electronic state regulation engineering on Pd single atom by the defect engineering of the BN support for acetylene semi-hydrogenation

Cited by 1 publication

References 59 publications

Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline

Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline

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