Abstract
In this study, polypyrrole (PPy) was deposited on the surface of multiwall carbon nanotubes (MWCNTs), and PPy–MWCNTs were used to support the AuCl3 catalyst. Transmission electron microscopy and Fourier-transform infrared spectrometry confirmed the presence of PPy species in AuCl3/PPy–MWCNT catalysts. AuCl3/PPy–MWCNTs displayed enhanced catalytic activity and stability for acetylene hydrochlorination compared to AuCl3/MWCNT. Electron transfer may occur between the N atom of PPy and the Au3+ center, which affects the adsorption of hydrogen chloride during acetylene hydrochlorination.
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