Abstract
In this work, a series of gold nanoparticles deposited on α-FeOOH nanorods were studied in relation to their performance in the low-temperature oxidation of CO. The catalysts were characterised by different techniques such as, Fourier transform infrared (FTIR), X-ray diffraction (XRD), N2 adsorption/desorption, hydrogen temperature programmed reduction (H2-TPR) and transmission electron microscope (TEM) images. The XRD proved the formation of α-FeOOH crystalline structure and also showed small diffraction peaks for Au-agglomerated particles on the surface. While TEM images revealed the formation of α-FeOOH with nanorod structure with different dimensions, TEM also showed some agglomerations of Au particles on the support surface. The H2-TPR experiments the enhancement of Au/α-FeOOH reducibility. The performance of Au/α-FeOOH in the CO oxidation was greatly affected by Au content and α-FeOOH preparation method.
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