Embedded hydrothermal-resistant nisn-cs nano-catalyst and preparation method therefor and application thereof

Abstract

The present invention discloses an embedded hydrothermal-resistant NiSn—CS nano-catalyst and a preparation method therefor and use thereof. The method includes the following steps: firstly dissolving a Ni salt, a Sn salt and chitosan to form a sol solution; and then removing a solvent from the sol solution to obtain a gel, and subjecting the gel to carbonization treatment to obtain the embedded hydrothermal-resistant NiSn—CS nano-catalyst; wherein temperature of the carbonization treatment is 400° C. to 600° C., and duration of the carbonization treatment is 1 to 4 hours. The embedded hydrothermal-resistant NiSn—CS nano-catalyst prepared by the present invention significantly improves the dispersion of NiSn catalytic active sites and the stability of the structure and activity in hydrothermal environments. When used for the synthesis of higher alcohols from lower alcohols, the catalyst demonstrates excellent catalytic efficiency and hydrothermal resistance, as well as easy separation and recycling, low pollution, and excellent recycling performance.