Nanophase Bi2O3 was synthesized by two methods, treatment of Bi(NO3)3·5H2O with NaOHin solid-state and decomposition of Bi complex prepared by reacting solid Bi(NO3)3·5H2O with 8-OH-quinoline.

Laboratory study on blast furnace lining protection with WO3-bearing material;

Under hydrothermal conditions, the rule was found for the preparation of superfine powder of pyrochlore - type tungsten trioxide by changing the pH value of the system, concentration of the acid, reaction temperature and time.

Tungsten trioxide (WO_3) has been under an extensive research because of its importance for its electro-optical, electrochromic, ferroelectric and catalytic etc.

Synthesis of Ultrafine γ-Bi_2O_3 Powder at Low Temperature;