新型炭材料2017，Vol.32Issue(5)：442-450,9.DOI:10.1016/S1872-5805(17)60133-1
不粘煤基活性炭作超级电容器电极材料:硼、氮掺杂对其电化学性能的影响
The effect of nitrogen and/or boron doping on the electrochemical performance of non-caking coal-derived activated carbons for use as supercapacitor electrodes
摘要
Abstract
Coal-based activated carbons doped with either N or B or a combination of the two were prepared for use as the elec-trode materials of supercapacitors by ball milling and subsequent activation using Xinjiang non-caking coal, melamine and boric acid as the respective carbon, nitrogen and boron sources. FTIR spectroscopy and XPS reveal that the B and N atoms are substitutionally incorporated into the carbon skeleton. These doped activated carbons contain a large number of mesopores. Cyclic voltammetry, gal-vanostatic charge/discharge and electrochemical impedance spectroscopy show that N-and B-doped activated carbons have a superior capacitance and rate performance to the non-doped one. The B-N co-doped material has the highest specific capacitance of 176 F·g-1 at 0. 5 A·g-1 , which is attributed to a synergistic effect of B-N co-doping. The capacitance of the co-doped sample re-mains at 96% of the original value after 20000 cycles.关键词
活性炭/杂原子掺杂/超级电容器/电化学性能Key words
Activated carbon/Heteroatom-doping/Supercapacitor/Electrochemical performance分类
化学化工引用本文复制引用
陆倩,徐园园,木沙江,李文翠..不粘煤基活性炭作超级电容器电极材料:硼、氮掺杂对其电化学性能的影响[J].新型炭材料,2017,32(5):442-450,9.基金项目
国家自然科学基金 (NSNF, U1303192) （NSNF, U1303192）
新疆维吾尔族自治区自然科学基金项目 (2012211A108).:National Natural Science Foundation of China (NSNF,U1303192) （2012211A108）
Natural Science Fund Project of Xinjiang ui-ghur autonomous region (2012211A108). （2012211A108）
