title: Effect of nano-silica spheres template on CO2 capture of exchange resin-based nanoporous carbons.
abstract: In this work, a nanoporous carbon-based adsorbent with a higher specific surface area was directly prepared from polystyrene-based cation exchange resin (PCER) by carbonization of a mixture of nano-silica spheres. The silica/PCER composites were carbonized at 1173 K with different silica/PCER ratios. The effects of nano-silica spheres content on the pore structures of nanoporous carbons were investigated by N2 full isotherms. The CO2 capture capacity was measured by CO2 isothermal adsorption at 298 K and 1 bar. From the results, it was found that the nano-silica spheres/PCER ratio had a major influence on the CO2 capture capacity and the textural properties of the prepared nanoporous carbons. The specific surface area and total pore volume, as well as the pore size of the nanoporous carbons increased with increasing silica/PCER ratio.
authors: Korea CCS R&D Center, Korea Institute of Energy Research, 152 Gajeongro, Yuseoung-gu, Daejeon 305-343, South Korea.
authors: Long-Yue
authors: LY
authors: Meng
authors: Soo-Jin
authors: SJ
authors: Park
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry / Q000302:isolation & purification*; D002411:Cation Exchange Resins / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D054802:Molecular Imprinting / Q000379:methods; D054118:Nanospheres / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D002411:Cation Exchange Resins; D002245:Carbon Dioxide; D002244:Carbon; D012822:Silicon Dioxide