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Synthesis of Monodisperse Palladium Nanoclusters Using Metal–Organic Frameworks as Sacrificial Templates

Journal Article · · ChemNanoMat
 [1];  [1];  [1];  [2];  [1];  [2];  [1]
  1. Department of Chemistry Iowa State University Ames Laboratory U.S. Department of Energy Ames Iowa 50011 United States
  2. Department of Chemistry University of Illinois at Urbana-Champaign Urbana Illinois 61801 United States
Abstract

An interfacial etching approach was developed for the synthesis of monodisperse and ultrasmall thiolated palladium nanoclusters (Pd NCs) using Zr‐UiO‐66‐NH 2 metal–organic frameworks (MOFs) as sacrificial templates. The Pd NCs were originally synthesized inside the cavities of the MOFs (Pd@UiO‐66‐NH 2 ). The Pd NCs released from the MOFs have a strikingly small size with narrow distribution (1.1±0.1 nm), amounting to a cluster size of ca. 40 Pd atoms. The 1 H NMR spectrum indicates that thiol is the only capping agent for these Pd NCs. We derived the composition of the thiolated Pd NCs using thermogravimetric analysis (TGA) and inductively coupled plasma mass spectrometry (ICP‐MS) analysis. Moreover, the Pd NCs size can be tuned by using MOF templates with different cavity sizes. The thiolated Pd NCs are catalytically active in a model Suzuki–Miyaura coupling reaction.

Sponsoring Organization:
USDOE
OSTI ID:
1400977
Journal Information:
ChemNanoMat, Journal Name: ChemNanoMat Journal Issue: 8 Vol. 2; ISSN 2199-692X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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