Effect of Lanthanum in Zn-La(-Zr)-Si Oxide Compositions on their Activity in the Conversion of Ethanol into 1,3-Butadiene

The introduction of lanthanum into Zn(-Zr)-Si oxide compositions markedly enhances their activity in the conversion of ethanol into 1,3-butadiene. This effect is attributed to the formation of additional basic sites on the catalyst surface.