The invention relates to a method for preparing
nitrogen-functionalized hollow
mesoporous carbon nanosphere.
Ammonia water, water, ethyl
alcohol,
resorcinol, a
formaldehyde solution and tetrapropoxysilane are taken according to a
mass fraction quantity of 1: 3.7: 20.5: 0.059: 0.22 to 0.66: 0.50 to 1.5; the
ammonia water, the water, the ethyl
alcohol, and the tetrapropoxysilane are fixed and stirring is carried out, reaction is carried out for 15 minutes at a temperature of 30 DEG C, the
resorcinol and the
formaldehyde solution are added and stirring is carried out continuously for 24h, hydro-
thermal treatment is carried out for 24 hours at a temperature of 100 DEG C, so that a
polymer nanosphere including SiO2 nano particles is obtained; the
polymer nanosphere is processed by
carbonization at a temperature of 600 to 900 DEG C, a SiO2 template is removed by using a NaOH solution to obtain a hollow
mesoporous carbon nanosphere;
ionic liquid 1-ethyl-3methylimidazolium
dicyanamide and the hollow
mesoporous carbon nanosphere are fixed and then
carbonization is carried out again at a temperature of 700 DEG C, so that a
nitrogen-functionalized hollow mesoporous
carbon nanosphere is prepared. According to the method provided by the invention, the prepared
nitrogen-functionalized hollow mesoporous
carbon nanosphere has advantages of having high specific surface area, nitrogen functional group, hollow structure, mesoporous channel and spherical geometrical morphology; and when the nitrogen-functionalized hollow mesoporous
carbon nanosphere is used as a super
capacitor electrode, the excellent electrochemical performance is realized.