Bringing Catalysis with Gold Nanoparticles in Green Solvents to Graduate Level Students

Vikram Singh Raghuwanshi, Robert Wendt, Maeve O'Neill, Miguel Ochmann, Tirtha Som, Robert Fenger, Marie Mohrmann, Armin Hoell, Klaus Rademann

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)


We demonstrate here a novel laboratory experiment for the synthesis of gold nanoparticles (AuNPs) by using a low energy gold-sputtering method together with a modern, green, and biofriendly deep eutectic solvent (DES). The strategy is straightforward, economical, ecofriendly, rapid, and clean. It yields uniform AuNPs of 5 nm in diameter with high reproducibility. Moreover, catalytic applications of AuNPs in DES are shown by studying the conversion of p-nitrophenol to p-aminophenol. Systematic in situ UV-vis spectra are recorded during the catalytic reaction. While the experimental procedures are simple, our laboratory experiments can be applied in a variety of settings depending upon how detailed the instructor requires the depth of the analyses. The laboratory experiments described herein were successfully conducted and evaluated by students with a bachelor degree.

Original languageEnglish
Pages (from-to)510-514
Number of pages5
JournalJournal of Chemical Education
Issue number4
Publication statusPublished - 11 Apr 2017


  • Catalysis
  • General Public
  • Graduate Education/Research
  • Green Chemistry
  • Hands-On Learning/Manipulatives
  • High School/Introductory Chemistry
  • Inorganic Chemistry
  • Nanotechnology
  • Spectroscopy

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