Chemistry Letters, Vol.40, No.10, 1089-1091, 2011
Superuniform Molecular Nanogate Fabrication on Graphene Sheets of Single Wall Carbon Nanohorns for Selective Molecular Separation of CO2 and CH4
Superuniform nanosized gates (nanogates; 0.41 +/- 0.02 nm in size) were donated on graphene sheets of single wall carbon nanohorn (SWCNH) particles by controlled oxidation. Superuniform nanogate donation confers high molecular selectivity and large adsorption capacity upon SWCNH. The molecular selectivity of CO2 over CH4 attains 17 below 0.01 MPa by the nanogate separation.