Jump to main content
Jump to site search


High yield synthesis of branched gold nanoparticles as excellent catalysts for the reduction of nitroarenes

Author affiliations

Abstract

A one-pot preparation of branched gold nanoparticles (NPs) in aqueous solution using acetanilide as both a reducing and shape-directing agent has been achieved. The structure, morphology and optical properties of the branched gold NPs can be tuned by controlling the concentration of acetanilide. In contrast to reported protocols, high quality and stable branched gold NPs can be produced exclusively without any sophisticated purification techniques. More interestingly, the gold NPs thus obtained are predominantly enriched with a uniform facet of {111}, as confirmed by HRTEM and XRD methods. When compared to reported gold NPs, the branched gold NP catalysts exhibited two to three orders of magnitude higher activity for the reduction of 4-nitrophenol into 4-aminophenol. Furthermore, the average turnover frequency of the branched gold NPs was found to be 19 molecules per min, which is significantly higher than that of spherical gold NPs and other reported branched gold NP catalyst systems.

Graphical abstract: High yield synthesis of branched gold nanoparticles as excellent catalysts for the reduction of nitroarenes

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Jun 2017, accepted on 22 Aug 2017 and first published on 23 Aug 2017


Article type: Paper
DOI: 10.1039/C7NJ02056B
Citation: New J. Chem., 2017, Advance Article
  •   Request permissions

    High yield synthesis of branched gold nanoparticles as excellent catalysts for the reduction of nitroarenes

    K. Paul Reddy, K. Jaiswal, B. Satpati, C. Selvaraju and A. Murugadoss, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ02056B

Search articles by author

Spotlight

Advertisements