Conversion of aliphatic C1[sbnd]C2 alcohols on In[sbnd], Nb[sbnd], Mo-doped complex lithium phosphates and HZr2(PO4)3 with NASICON-type structure.

In , Nb , Mo-doped lithium complex phosphates and HZr 2 (PO 4 ) 3 with NASICON-type structure were synthesized in this paper. Particle size distribution lies between 50 and 300 nm. The obtained samples were characterized by X-ray diffraction analysis, scanning electron microscopy and X-ray microanalysis. Investigation of the catalytic properties of synthesized compounds in the C1 C2 alcohols conversions showed that heterovalent doping has a determining effect on the obtained catalysts' activity and selectivity. It is shown that the thermodynamic factors and the dopant ability to change the degree of oxidation and acid function of the catalysts play a key role in methanol and ethanol conversion. A number of catalysts show the high activity and selectivity of the formation of dimethyl and diethyl ethers and ethylene. High selectivity for C4 hydrocarbons is achieved by LiZr 2 (PO 4 ) 3 and Li 0.5 Zr 2 P 2.5 Mo 0.5 O 12 catalysts (64 and 49%, respectively) in the case of ethanol conversion. [ABSTRACT FROM AUTHOR]