林产化学与工业2018，Vol.38Issue(3)：55-62,8.DOI:10.3969/j.issn.0253-2417.2018.03.007
氮氧掺杂木质素基炭材料的制备及其电化学性能
Synthesis of Nitrogen and Oxygen-doped Ligin-based Electrode Materials and Its Electrochemical Performance
摘要
Abstract
Nitrogen and oxygen-doped carbon materials ( NSL-x) were prepared by one-pot pyrolysis of sodium lignin sulfonate as carbon precursor and melamine as nitrogen precursor. The morphology and structure of obtained materials were characterized by SEM, XRD, XPS analysis. The results showed that NSL-x was composed of irregular carbon block with size ranging from hundreds of nanometers to several microns. Nitrogen doping did not change the morphology and crystalline structure of carbon block, the amorphous carbon structure was the main form of NSL-x. When the mass ratio of melamine and sodium lignin sulfonate was 4, nitrogen and oxygen content of the obtained NSL-4 can reached 2. 41% and 20. 12%, respectively. Electrochemical performance test results showed that NSL-4 exhibited a high capacitance of 229 F/g at the current density of 0.1 A/g in 6 mol/L KOH electrolyte, and even remained 137 F/g at 20 A/g. Meanwhile, under the current density of 10 A/g, NSL-4 remained 100% coulomb efficiency with only 1% capacity loss after 10000 consecutive charge/discharge cycles, and showed excellent electrochemical stability.关键词
木质素磺酸钠/碳电极材料/超级电容器/氮氧掺杂/电化学性能Key words
sodium lignin sulfonate/carbon electrode material/supercapacitor/nitrogen and oxygen-doping/electrochemical performance分类
化学化工引用本文复制引用
张文,许升,吕宗泽,李志国..氮氧掺杂木质素基炭材料的制备及其电化学性能[J].林产化学与工业,2018,38(3):55-62,8.基金项目
中央高校基本科研业务费专项资金项目(2572017DB06) （2572017DB06）
