Autor: |
Pet’kov, V., Shchelokov, I., Kurazhkovskaya, V., Orekhova, N., Ermilova, M., Tereshchenko, G. |
Zdroj: |
Russian Journal of Inorganic Chemistry; Jul2008, Vol. 53 Issue 7, p993-999, 7p |
Abstrakt: |
Complex phosphates of titanium, chromium, and metals(2+) of the general formula M0.5(1 + x )Cr x Ti2 − x (PO4)3 (M = Mg, Ca, Mn, Ni, Sr, Ba, and Pb) were synthesized. Their phase formation was studied by means of X-ray powder diffraction, electron probe microanalysis, differential thermal analysis, and IR spectroscopy. Individual phases and solid solutions crystallizing in kosnarite and langbeinite structure types were identified; their crystallographic parameters were calculated. The catalytic properties of phosphates Ca0.5(1 + x )Cr x Ti2 − x (PO4)3 in methanol conversion were studied. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
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