초록 |
In the present study, co-impregnated tungsten and silver onto nickel based catalysts have been investigated. Although silver has shown its great ability on Ni-base catalysts as a dopant, it has rarely been used due to its high price. By adding trace of tungsten subsidiary to silver, it was able to reach as high performance as the catalyst with silver only. the influences caused by tungsten modification were inspected by XRD, XPS, TPR and TEM with Elemental Mapping from SEM. the result revealed similarity in terms of physicochemical properties. |