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1) BET surface area
The BET specific surface area of nanoporous carbons is known to depend on the region of the relative pressure in the BET plots (K. Kaneko, et al., Carbon, 30, 1075 (1992).).  The authors should consider it.

2) BJH method
The authors calculated the micropore volume by BJH method (eg. Table1).  It is not appropriate, because BJH method is based on the capillary condensation theory of pores.  The nitrogen molecules in micropore do not behave as liquid.

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Summary Report   
                                             
Area
                                          
Single Point Surface Area at P/Po 0.20167801 :                    2438.6230   m?g
      
BET Surface Area:                                                 2524.0024   m?g
      
Langmuir Surface Area:                                            3469.4181   m?g
      
BJH Adsorption Cumulative Surface Area of pores
between 17.000000 and 3000.000000 A Diameter:                 1731.8984   m?g
      
BJH Desorption Cumulative Surface Area of pores
between 17.000000 and 3000.000000 A Diameter:                 1877.9698   m?g
      
Volume
                                                
                                                
Single Point Total Pore Volume of pores less than
763.3279 A Diameter at P/Po 0.97397234:                      2.439007 cm?g
      
BJH Adsorption Cumulative Pore Volume of pores
between 17.000000 and 3000.000000 A Diameter:                    2.501077 cm?g
      
BJH Desorption Cumulative Pore Volume of pores
between 17.000000 and 3000.000000 A Diameter:                    2.576234 cm?g

Pore Size
                                                
                                                
Average Pore Diameter (4V/A by BET):                                38.6530   A   
      
BJH Adsorption Average Pore Diameter (4V/A):                        57.7650   A   
      
BJH Desorption Average Pore Diameter (4V/A):                        54.8728   A
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