PREPARATION METHOD OF NANOPOROUS SILICA/CARBON CATALYST SUPPORT FOR FUEL CELL USING RICE HULL, AND DIRECT METHANOL AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE SAME

摘要

The present invention relates to a nanoporous silica/carbon catalyst supportive material for a fuel cell and, more specifically, to is characterized by including a method for producing the nanoporous silica/carbon catalyst supportive material for a fuel cell including a first step of cleaning rice or equisetaceae species with distilled water and drying the same; a second step of grinding the rice or equisetaceae species dried through the first step with a grinding device; a third step of thermally treating the rice or equisetaceae species ground through the second step; a fourth step of producing a silica/carbon composite by carbonizing the rice or equisetaceae species thermally treated through the third step; and a fifth step of acidizing the silica/carbon composite produced through fourth step. By producing the like above, the nanoporous silica/carbon catalyst supportive material for a fuel cell can obtain an excellent catalyst supporting characteristics and can improve fuel-oxidizing and oxygen-reducing performance by forming a mezzo porous structure. In a platinum/ruthenium catalyst or platinum catalyst according to the present invention obtains, silica is contained in the rice hull supportive material, thereby obtaining higher performance from high-concentration methanol, an excellent long-term durability, and high carbon corrosive resistance. Additionally, the mass production of platinum/ruthenium catalyst or platinum catalyst is facilitated at low costs by using agricultural byproducts.