A highly dispersed nickel supported catalyst for dry reforming of methane
The modification of silica support using ethylene glycol (EG) significantly modified surface properties of silica support, resulting in the decreased decomposition temperature of impregnated nickel nitrate and the enhanced metal–support interaction. The catalyst prepared by modified silica support realized excellent stability and two times higher catalytic activity than the catalyst obtained from non modified silica support in dry reforming of CH4, since its highly dispersed supported nickel and strong nickel–silica interaction. The properties of silica supports, catalyst precursors and catalysts were characterized by TG-DSC, FT-IR, XRD, H2 chemisorption, O2 titration, TPR and TEM.
► The modification by EG decreased decomposition temperature of nickel nitrate. ► The modified silica support improved the dispersion of nickel. ► And enhanced the nickel-silica interaction. ► The catalyst obtained from the modified silica realized excellent stability. ► And higher activity.Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
Journal: Catalysis Communications - Volume 20, 5 April 2012, Pages 6–11