Colloidal palladium nanoparticles versus commercial palladium catalysts for suzuki cross coupling reactions - The influence of surface functionalization

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

The effect of nanoparticle (NP) surface chemistry and functionalization on the catalytic performance in Suzuki coupling is assessed. Capping ligands commonly used in colloidal synthesis such as oleylamine, dodecanethiol, propylene glycol and PVP are compared with commercial Pd on carbon. The catalysts are analyzed pre- And post-reaction with transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Capping ligands are found to have a positive or negative effect on the catalytic performance depending on the chemistry of the functional group. Capping ligands further impact on the reusability of the catalyst. Changes in the NP surface chemistry and morphology during the reaction are key deactivation pathways for catalysts, even a room temperature. In particular PVP, was observed to give excellent stability to colloidal catalysts preventing significant NP aggregation and facilitating excellent reusability.

Original languageEnglish
Title of host publicationNSTI
Subtitle of host publicationMaterials for Energy, Efficiency and Sustainability - TechConnect Briefs 2015
EditorsBart Romanowicz, Matthew Laudon
PublisherTaylor and Francis Inc.
Pages79-82
Number of pages4
ISBN (Electronic)9781498747288
Publication statusPublished - 2015
Event10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference - Washington, United States
Duration: 14 Jun 201517 Jun 2015

Publication series

NameNSTI: Advanced Materials - TechConnect Briefs 2015
Volume2

Conference

Conference10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference
Country/TerritoryUnited States
CityWashington
Period14/06/1517/06/15

Keywords

  • Capping ligands
  • Nanoparticles
  • Palladium
  • Surface chemistry
  • Suzuki

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