. Synthesis of mesoporous carbon
The above phenolic resin precursor was dissolved in 200 g of
ethanol and then 10 g of block copolymer Pluronic F-127
(EO106PO70EO106, where EO is ethylene oxide and PO is propylene
oxide) was added by stirring for 10 min to form a homogeneous
solution. The mixture was transferred to a dish to allow the
evaporation of ethanol. The obtained membrane was aged at
100 _ C for 24 h and then calcined at 800 _ C under nitrogen for 5 h
at a ramp rate of 1 _ C/min to form the ordered mesoporous
carbon.