三嗪基氮掺杂碳材料的制备及其在超级电容器中的应用研究

Preparation and application of triazine-based nitrogen-doped carbon materials for supercapacitors

通过三聚氯氰(TCT)与对苯二胺(PPD)反应,成功合成了基于三嗪结构制备的微孔聚合物,然后在700~1000℃的环境下对微孔材料进行煅烧。结果表明,经900℃碳化的N-CTF-900样品的电化学性能最好,当电流密度为1A/g时,比电容为264.2F/g。经过10000次充放电循环,电容保持率达91.0%,展示出良好的循环稳定性和倍率性能,可作为超级电容器的电极材料。此外,随着碳化温度的升高,样品的碳化程度、电导率、孔隙率和微孔体积均增大。

By the reaction of cyanuric chloride(TCT)with p-phenylenediamine(PPD),a microporous polymer based on triazine structure(N-CTF)was successfully synthesized,and the N-CTF was carbonized at 700~1000℃subsequently.The results showed that the electrochemical performance of the N-CTF-900 sample carbonized at 900℃was the best,with a specific capacitance of 264.2F·g~(-1)at current density of 1A·g~(-1).After 10000 cycles of charging and discharging,the capacitance retention rate reached 91%.The N-CTF-900 could be used as electrode material for supercapacitors due to its excellent cycling stability and rate performance.In addition,the degree of carbonization,conductivity,porosity and micropore volume of the sample all increased with the increase of carbonization temperature.