Three heteropoly acids containing different amounts of V and Mo have been prepared by multi-step method. The methed was simple, economic in raw materials’ cost, and with relatively higher yield. ICP, TGA, Potentiomet...
Three PMoV heteropoly acids(HPAs)with different number of V atoms were synthesized and characterized by ICPAES,TG,IR and XRD.The IR spectra indicated that they are Keggin structure.Compared the IR spectrum of P...