Abstract:
Ni and Fe metal-doped porous carbonaceous materials were prepared by the Sol-gel method through the polycondensation of resorcinol/formaldehyde and Pluronic F127mixture containing the metal acetate, dried by evaporation. It was carbonized under nitrogen flow at 800˚C. In carbonization step, Pluronic F127 was removed and developed to porosity in carbon materials. Their morphology and pore texture of metal-containing phase were characterized by transmission electron microscopy and N2 adsorption-desorption at -196˚C. The 1:1.4 of resorcinol/formaldehyde ratio was suitable for synthesis of porous carbon materials that showed 444 sq.m/g of surface area and 0.46 cb.m/g of pore volume with the average pore diameter 3.09 nm. Ni metal-doped porous carbon materials showed porous properties higher than Fe metal-doped porous carbon materials, was 282 sq.m/g of surface area. The morphology and pore texture were controlled by the nature of the metal. It generated difference of initial pH mixtures, which made difference rate of polycondensation. The phase component of metal-doped porous carbonaceous materials was analyzed by X-ray diffraction and Raman spectroscopy. The results showed nickel particle and nickel oxide of Ni metal-doped. The structure of carbon materials were sheet capsule in the case of Ni metal-doped .A part of Fe metal-doped showed iron oxide, the structure of carbon were worm-like and capsule structure. Nature of metal was influenced both the metal phase of transition metal.