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- Title
Single‐Molecule Nanocatalysis Via the Support Effect of Gold Nanoparticles on Carbon Nanotubes.
- Authors
Cao, Yingying; Kang, Seong Ho
- Abstract
The catalytic properties of supported catalysts are greatly influenced by the nature of the support. Here, by monitoring the nanocatalysis of gold (Au) nanoparticles deposited on the outer surface (Au/CNTs‐out) and inner surface (Au/CNTs‐in) of CNTs at the single‐molecule level, the support effect of CNTs was observed in both product formation process and product dissociation process. The results indicated that Au/CNTs‐out possessed higher intrinsic catalytic activity than Au/CNTs‐in in reductive N‐deoxygenation reaction of resazurin to resorufin. For the product dissociation process, the product molecules on both Au/CNTs‐out and Au/CNTs‐in preferred the reactant‐assisted dissociation pathway. Furthermore, product molecules dissociated faster on Au/CNTs‐out than Au/CNTs‐in. These differences were attributed to the support effect of CNTs. This study shows a better understanding of support effect for supported catalyst and gives deeper insight into heterogeneous catalytic process. Au/CNTs‐out and Au/CNTs‐in show different catalytic properties at the single‐molecule level due to the support effect of CNTs.
- Subjects
GOLD nanoparticles; DEOXYGENATION; RESAZURIN; CARBON nanotubes; MOLECULAR structure
- Publication
Bulletin of the Korean Chemical Society, 2019, Vol 40, Issue 1, p14
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.11630