Galvanic Deposition of Gold Nanorods via AAO Template for VOCs Sensing

Abstract

The use of gold nanostructures for the creation of sensing devices for volatile organic compounds (VOCs) is particularly important because of their unique electronic, optical, and catalytic properties. In this paper, the synthesis of gold nanorods was described. The preparation of nanoporous alumina template was done via electrochemical anodization. The fabrication of gold nanorods was provided via electrochemical deposition into the nanoporous alumina template. Working conditions during the anodization had a significant influence on the pore diameter and thus on size of gold nanorods. The detailed topography of the nanostructured surfaces was characterized by scanning electron microscopy (SEM).