LaCol yFeyO3(y=0,0.1,0.2,0.3,0.4,05)perovskites were prepared by the sol-gel method and characterized by XRD,BET,SEM,in situ DRIFTS,and TPR.With this preparatio
Amphiphilic carbonaceous material(ACM)dispersed in nanoscale in alkaline aqueous solutions was synthesized from coal tar pitch.The structure and surface propert