PbCrO 4 nanoparticles of metastable orthorhombic phase with the diameter of 5～15 nm were first synthesized through a new kind of biomimetic method.

Physical-chemical characteristics of the self-developed catalyst V_2O_5-WO_3-MoO_3/TiO_2 have been determined by static N_2 adsorption and XRD,its activity evaluated with a fixed bed continuous reactor and factors that influence the catalyst's activity analyzed.

In order to enhance the performance of inert anodes of Ag/NiFe_2O_4 cermet,the inert anode of nickel ferrite based cermet with 15% excess NiO was prepared by the powder metallurgy method using NiO,Fe_2O_3,Ag and a little V_2O_5 as raw materials.

Carbon was chosen as the reductant to prepare VO_2 from V_2O_5.

Experimental Study of V_2O_5-WO_3 DeNO_x Catalystsover Commercial Anatase TiO_2;

Transparent V_2O_5-TiO_2 composite nanometer thin films on glass substrates were prepared with sol-gel method and dip-coating technique to study the effect of titanium oxide addition on water contact angle,crystal phase and size.