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Big hole - graded pore structure of mesoporous carbon materials , a high degree of attention in recent years has been due to its unique nature . This new type of Carbons both the excellent properties of the mesoporous and macroporous structure , has lower fluid flow resistance and a high specific surface area , and by the process of the modification of the hole wall can provide excellent chemical selectivity , in the macromolecular adsorption catalyst carrier and capacitor electrode has its unique advantages , is a new type of porous carbon materials with a wide range of application prospects . Template dominant ideology , the dual template synthesis big hole - graded pore structure of mesoporous carbon materials . Using scanning electron microscopy , transmission electron microscopy , X - ray diffraction , physical adsorption technology to study the morphology and microstructure ; explore its application prospects as a supercapacitor electrode material through the three-electrode system . The main findings of the paper are as follows: 1) polyurethane foam for large hole template , SBA-15 mesoporous template , asphaltenes , pre - asphaltenes , coal liquefaction residue of tetrahydrofuran solubles as a carbon source , dual template method was successfully prepared massive big hole - graded pore structure of mesoporous carbon materials (ASF, PASF, CLF), a byproduct of the coal liquefaction process into high performance new Carbon . The prepared product has a macroporous structure and the three - dimensional communicating ordered mesopore walls , and controlled morphology . Product the ASF, PASF and CLF 745,570 and 407 m2 / g specific surface area , pore volume , respectively 0.64,0.55 and 0.48 cm3 / g , mesoporous pore size distributed in 4-5 nin . 2) using polystyrene microspheres as a large hole template , F127 mesoporous template A resol as a carbon source preparation of a three-dimensional connectivity big hole and two-dimensional hexagonal ordered mesoporous pore walls of carbon materials HMMC step preparation big hole - hierarchical pore mesoporous carbon materials . Products obtained large hole for the connectivity of the three-dimensional structure of 1μm aperture , The mesoporous aperture is concentrated in about 5 nm . BET specific surface area of 354 m2 / g, pore volume of 0.36 cm3 / g . 3 ) 6 M KOH three-electrode system scan rate cyclic voltammetry curves showed a quasi-rectangular feature , the charge and discharge curves under different current densities isosceles triangle , indicating good preparation products capacitor performance .
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