CAJ | 학술논문

采用自组装/源位还原法相结合制备了自支撑褶皱N-掺杂石墨烯薄膜.运用场发射扫描电镜、X射线粉末衍射和光电子能谱仪等表征手段对所制备的韧性薄膜进行了表征.电化学性能测试表明所制备的N-掺杂石墨烯薄膜具有良好的超电容特性:在1A/g的电流密度下,其比容量为210 F/g;当电流密度增加10倍时,仍然具有初始容量的71.0%.在5 A/g的电流密度下循环1 000次后比容量值为原来的95.3%.
채용자조장/원위환원법상결합제비료자지탱습추N-참잡석묵희박막.운용장발사소묘전경、X사선분말연사화광전자능보의등표정수단대소제비적인성박막진행료표정.전화학성능측시표명소제비적N-참잡석묵희박막구유량호적초전용특성:재1A/g적전류밀도하,기비용량위210 F/g;당전류밀도증가10배시,잉연구유초시용량적71.0%.재5 A/g적전류밀도하순배1 000차후비용량치위원래적95.3%.
A method which combining self -assembly and source reduction has been used for the preparation of self supporting fold N -doped graphene films.Characterization methods such as field emission scanning electron microscope,X ray powder dif-fraction and photoelectron spectrometer have been used to characterize the preparation of the flexible films.Electrochemical per-formance tests show that the prepared N -doped graphene thin films have good properties of ultra -capacitance.At the current density of 1 A/g,its specific capacity is 210 F/g.When the current density is increased by 10 times,it still have 71.0%of the initial capacity.In 5 A /g current density of 1 000 cycles,specific capacity value is 95.3%of the original.