Novel gold catalysts for the direct conversion of ethanol into C3+ hydrocarbons

Direct Au-Ni/Al 2 O 3 catalysed cross-condensation of ethanol with isopropanol into pentanol-2

“…The results of these studies and other recent findings [50] on the ␥-Al 2 O 3 supported Au-Ni catalysed ethanol conversion into hydrocarbons C 3 -C 9 indicate that gold-nickel nanocomposites are promising for the cross-condensation of ethanol with isopropanol into other valuable chemicals.…”

The effect of metal deposition order on the synergistic activity of Au–Cu and Au–Ce metal oxide catalysts for CO oxidation

“…The XRD patterns of Cu x O y /Al 2 O 3 and Ce x O y /Al 2 O 3 catalysts are indistinguishable from the XRD pattern recorded for the support. This result could be explained by the high dispersion of Cu x O y and Ce x O y particles [6], their amorphous state [31] or relatively low concentration of supported metals. Three new diffraction peaks at 2θ of 38.1°, 44.4°, and 64.6° were observed for the Au/Al 2 O 3 (IMP) and Au/Al 2 O 3 (DP) catalysts (Fig.…”

“…However, the original breakthrough in the catalysis by gold should be linked with Haruta (1987), who demonstrated that gold can be an excellent catalyst when supported on metal oxides in a dispersed state [4]. The recent progress in heterogeneous catalysis resulted in remarkable investigations that showed the high activity of gold nanoparticles in the conversion of alcohols to synthetic hydrocarbons [5,6], selective oxidation of propene [7,8], synthesis of hydrogen peroxide [9,10], water gas shift reaction [11,12], hydrogenation of alkenes [13,14], isomerization [15,16], and hydrodechlorination [17,18]. The desired Cu, Ce, and Au contents in the catalysts were 0.32, 0.71, and 1 wt.…”

Monitoring Ni 0 and coke evolution during the deactivation of a Ni/La 2 O 3 –αAl 2 O 3 catalyst in ethanol steam reforming in a fluidized bed

“…Ethanol obtained by biomass fermentation (bioethanol) arouses high expectations for its use both as fuel and as feedstock, for the production of hydrocarbons [1][2][3] or hydrogen [4][5][6], by means of large-scale biorefinery processes, when production of bioethanol from lignocellulosic biomass turns out to be economically advantageous and sustainable. Steam reforming of ethanol (SRE) allows direct valorization of bioethanol ($86% H 2 O), thus avoiding the cost of its dehydration for use as a fuel.…”