本文選題：氮摻雜中孔炭 + 制備��； 參考：《炭素技術》2017年03期

【摘要】：以酚醛樹脂為原料,二氧化硅為模板,尿素為氮源,通過簡單的混合、炭化、脫模板制備了摻氮中孔炭。采用透射電鏡、物理吸附技術、紅外及元素分析對產(chǎn)品的孔結(jié)構(gòu)及組成進行了分析;利用三電極體系,測試了材料的循環(huán)伏安、交流阻抗、恒流充放電性能。結(jié)果表明,所得氮摻雜中孔炭具有較高的比表面積及比孔容,比表面積為938~1 212 m~2/g,比孔容為2.19~2.68cm~3/g,平均孔徑為8.8~9.3 nm。較低的炭化溫度利于固氮,700℃下炭化的樣品氮含量為2.38%。在電解質(zhì)為6 mol/L的KOH溶液的三電極體系、電流密度為50 mA/g下,700℃炭化得到的中孔炭比電容值達200 F/g。
[Abstract]:Nitrogen-doped mesoporous carbon was prepared from phenolic resin as raw material, silica as template and urea as nitrogen source. The pore structure and composition of the product were analyzed by transmission electron microscopy, physical adsorption, IR and elemental analysis, and the cyclic voltammetry, AC impedance and constant current charge-discharge properties were tested by three-electrode system. The results show that the nitrogen-doped mesoporous carbon has a high specific surface area and specific pore volume, with a specific surface area of 9381,212 mm2 / g, a specific pore volume of 2.19 ~ 2.68 cm-1 / g and an average pore size of 8.8 ~ 9.3 nm / g. The lower carbonization temperature is propitious to the nitrogen content of the carbonized sample at 700 鈩，

本文編號：2085343