Silver and copper nanoparticles stabilized on ionic liquids-functionalized polyhedral oligomeric silsesquioxane (POSS): Highly active and recyclable hybrid catalysts

Akbari, A ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1016/j.poly.2019.07.012
  3. Publisher: Elsevier Ltd , 2019
  4. Abstract:
  5. Two novel heterogeneous hybrid catalysts were successfully synthesized using octa-aminopropyl polyhedral oligomeric silsesquioxane hydrochloride salt (OA-POSS) and ionic liquids, followed by immobilization of Cu and Ag nanoparticles. The obtained hybrid catalysts, Cu@POSS-ILs and Ag@POSS-ILs, were characterized using FT-IR, SEM, EDX, TEM, XRD and TGA. Catalytic studies demonstrated that Cu@POSS-ILs was an excellent catalyst for click reaction in aqueous medium. Furthermore, Ag@POSS-ILs was also exhibited to be an active catalyst for 4-nitrophenol (4-NP) reduction. Simple preparation and easy catalysts recovery and recyclability of Cu@POSS-ILs and Ag@POSS-ILs for at least 3 and 6 runs, respectively, without loss of catalytic activity could be considered as important advantageous from catalytic application point of view. © 2019 Elsevier Ltd
  6. Keywords:
  7. 4-Nitrophenol reduction ; Click reaction ; Ionic liquids ; Metal nanoparticles ; Polyhedral oligomeric silsesquioxane nanoparticles
  8. Source: Polyhedron ; Volume 171 , 2019 , Pages 228-236 ; 02775387 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0277538719304826