| abstract |
The disclosed invention relates to a spherical form of porous carbon having an adjusted porosity. Also, a method for producing the porous carbon, comprising: (a) preparing a precursor solution by mixing a colloidal silica template material and a water-soluble thermally decomposable carbon source in an aqueous solution. A step in which the particle size of the colloidal silica template and the weight ratio of the colloidal silica / carbon source are controlled, and (b) a step of atomizing the precursor solution by ultrasonic spray pyrolysis to obtain small droplets; ) Introducing the droplets into a high temperature furnace operating at 700-1200 ° C. under an inert gas atmosphere, where the droplets are converted into solid spherical carbon / silica composite particles; d) recovering the carbon / silica composite particles exiting the furnace; and (e) removing the silica from the particles to obtain a substantially pure porosity in a spherical form with an adjusted porosity defined by surface area and pore size. Carbon And obtaining, which method comprises. The porous carbon of the present invention is used as a catalyst support for PEM fuel cells, electrodes for electric double layer capacitors and lithium ion batteries, hydrogen storage materials, and carriers for drug delivery. [Selection] Figure 1 |