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Encapsulating surface-clean metal nanoparticles inside metal-organic frameworks for enhanced catalysis using a novel γ-ray radiation approach

Inorganic Chemistry Frontiers, ISSN: 2052-1553, Vol: 5, Issue: 1, Page: 29-38
2018
  • 17
    Citations
  • 0
    Usage
  • 22
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    17
    • Citation Indexes
      17
  • Captures
    22

Article Description

A facile and efficient γ-radiation strategy has been developed to incorporate surface-clean metal nanoparticles (NPs) into UiO-66-NH in the absence of stabilizing agents and additional reductants. This approach is enabled by metal ion reduction with active e and H species derived from water radiolysis. As a result, highly dispersed Pd NPs with narrow size distribution were generated and evenly dispersed in UiO-66-NH. More importantly, the radiation-reduced Pd NPs exhibit significantly enhanced catalytic activity and stability in olefin hydrogenation. Meanwhile, they are also highly active in the catalytic reduction of 4-nitrophenol to 4-aminophenol. Furthermore, the proposed radiation methodology could be successfully extended to prepare other metal NPs such as Au and Pt. Considering that γ-ray radiation is widely used in industry, this study provides a potentially scalable approach to incorporate metallic nanomaterials into metal-organic frameworks with improved catalytic performance.

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