• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

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

Journal of Alloys and Compounds. 2018. Vol. 748. P. 583-590.
Ilin A. B., Ermilova M. M., Orekhova N. V., Cretin M., Yaroslavtsev A.B.

In, Nb, Mo-doped lithium complex phosphates and HZr2(PO4)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 analysisscanning electron microscopy and X-ray microanalysis. Investigation of the catalytic properties of synthesized compounds in the C1C2 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 LiZr2(PO4)3 and Li0.5Zr2P2.5Mo0.5O12 catalysts (64 and 49%, respectively) in the case of ethanol conversion.