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Phosphosilicate Nanosheets for Supported Palladium Nanoparticles As a Novel Nanocatalyst Publisher



Zhiani R1 ; Khoobi M2, 3 ; Sadeghzadeh SM1
Authors
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Authors Affiliations
  1. 1. Department of Chemistry, Faculty of Sciences, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
  2. 2. The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, 1417614411, Iran
  3. 3. Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Source: Microporous and Mesoporous Materials Published:2019


Abstract

Inspired by the high accessibility and low diffusion limitations of fibrous silica nanoparticles (KCC‐1), fibrous phosphosilicate (FPS) was engineered using a microemulsion system. In this work, we report design and synthesis of high-surface-area FPS using tripolyphosphate (TPP) and tetraethyl orthosilicate (TEOS). The FPS nanocatalyst was thoroughly characterized by Fourier transform infrared spectra (FTIR), Powder X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), Energy dispersive X-ray spectroscopy (EDX), and N2 adsorption/desorption study. Considering the large ionic internal character, high mechanical and thermal stability as well as long-term colloidal stability, this system could be considered as perfect nanocatalyst by using the host–guest approach. Then palladium nanoparticles (Pd NPs) supported on fibrous phosphosilicat to the cycloaddition of CO2 to epoxides. © 2018 Elsevier Inc.