CPC B01J 20/282 (2013.01) [B01J 20/20 (2013.01); B01J 20/28004 (2013.01); B01J 20/2808 (2013.01); B01J 20/28021 (2013.01); B01J 20/28052 (2013.01); B01J 20/28071 (2013.01); B01J 20/28073 (2013.01); B01J 20/28083 (2013.01); B01J 20/3057 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); C01B 32/205 (2017.08); B01J 2220/54 (2013.01); C01P 2004/03 (2013.01); C01P 2004/34 (2013.01); C01P 2004/61 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01)] | 20 Claims |
1. A method for making porous graphitic carbon microspheres comprising the steps of:
providing porous silica microspheres,
dispersing a monovinyl aromatic monomer, a polyvinyl aromatic monomer, and an initiator in a solvent,
contacting the porous silica microspheres with the monomer dispersion for a time sufficient for the monomers to coat the porous silica microspheres,
polymerizing the monomers to form copolymer coated microspheres,
sulfonating the copolymer to form a sulfonated copolymer,
pyrolyzing the sulfonated copolymer to form carbon microspheres,
digesting the carbon microspheres to dissolve the silica leaving porous carbon microspheres,
pyrolyzing the porous carbon microspheres, and
graphitizing the porous carbon microspheres to form porous graphitic carbon microspheres.
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