Issue 7, 2012

Synthesis, characterization, and catalytic application of networked Au nanostructures fabricated using peptide templates

Abstract

Bio-inspired-based methods represent new approaches for the fabrication and activation of nanomaterials, all under ambient and energy-neutral conditions. Recent advances have demonstrated the production of non-spherical materials of Pd and Pt; however, the production of similar Au materials remains challenging. Such fabrication routes are highly important as Au-based nanomaterials of selectable morphologies could have immediate applications in catalysis and energy storage. In this contribution, we demonstrate a peptide template-based methodology for the fabrication of Au nanoparticle networks, which are highly branched linear structures that are prepared in water at room temperature. The materials were fully characterized using UV-vis, TEM, XRD, and DLS, from which their catalytic activity was subsequently studied for the reduction of 4-nitrophenol. Using this approach, the materials were shown to be highly reactive as compared to comparable structures, which is likely due to their unique biological template. Together, this research represents a step forward in bio-based methodologies for the fabrication of functional and potentially sustainable materials.

Graphical abstract: Synthesis, characterization, and catalytic application of networked Au nanostructures fabricated using peptide templates

Supplementary files

Article information

Article type
Paper
Submitted
11 Mar 2012
Accepted
18 Mar 2012
First published
12 Apr 2012

Catal. Sci. Technol., 2012,2, 1360-1366

Synthesis, characterization, and catalytic application of networked Au nanostructures fabricated using peptide templates

R. Bhandari and M. R. Knecht, Catal. Sci. Technol., 2012, 2, 1360 DOI: 10.1039/C2CY20149F

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