Figure 3.

a N2 adsorption–desorption isotherms, b BJH pore size distribution curves from adsorption branches of CNF-25 and PNF-25. c N2 adsorption–desorption isotherms, d BJH pore size distribution curves from adsorption branches of CNF-200 and PNF-200

Wang et al. Nanoscale Research Letters 2010 5:913   doi:10.1007/s11671-010-9562-9