Naslov
Cu-Al-O powders prepared from zeolite precursors by combination treatment of ball milling and heating

Autori
Kosanović, Cleo ; Stubičar, Mirko ; Mužic, Ana ; Tomašić, Nenad

Izvornik
Croatica chemica acta (0011-1643) 81 (2008), 3; 431-435

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
zeolite A ; CuO ; Cu ; isothermal heating ; ball milling

Sažetak
By applying combination of mechanochemical and thermal treatment important materials that could be used in sensor and semiconductor technology as well in catalysis are obtained High energy ball milling was applied to prepare powder samples by treating mixture consisted of a) Cu and ammonium exchanged zeolite A and b) of CuO and ammonium exchanged zeolite A. According to X-ray powder diffraction the mechanical treatment resulted in mixture of amorphous phase and low size crystal particles. After 3h of milling the samples were isothermally treated at the appropriate temperature yielding crystalline mixtures with a dominant phase of CuAlO2. Thermal treatment of Cu-exchanged zeolite A resulted in a crystalline sample with dominant phase CuAl2O4.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA