One pot ligand exchange method for a highly stable Au-SBA-15 catalyst and its room temperature CO oxidation

Yogita Soni; I Kavya; T G Ajithkumar; C P Vinod

doi:10.1039/c8cc06887a

One pot ligand exchange method for a highly stable Au-SBA-15 catalyst and its room temperature CO oxidation

Chem Commun (Camb). 2018 Oct 30;54(87):12412-12415. doi: 10.1039/c8cc06887a.

Authors

Yogita Soni¹, I Kavya, T G Ajithkumar, C P Vinod

Affiliation

¹ Catalysis and Inorganic Chemistry Division, Anusandhan Bhavan, 2 Rafi Marg, New Delhi 110001, India. cp.vinod@ncl.res.in.

PMID: 30307460
DOI: 10.1039/c8cc06887a

Abstract

A modified deposition precipitation (DP) method has been developed to address a fundamental issue of supporting well dispersed Au nanoparticles on silica. Ammonium chloride (NH4Cl) plays an important role in in situ modifying the gold precursor (HAuCl4·3H2O) solution allowing facile deposition of gold NPs in the channels of SBA-15. The Au-SBA-15 catalyst (2.8 wt%) synthesized by this procedure showed 100% conversion for CO oxidation at room temperature with excellent stability at room temperature and high temperature.