化学浴法制备氢氧化镍@生物质炭纤维纳米复合材料及其电化学性能研究
|
摘要
以棉花在惰性气氛下高温处理得到的生物质炭纤维为载体,采用化学浴法原位制备氢氧化镍@生物质炭纤维纳米复合材料,并研究其作为超级电容器电极材料的电化学性能。借助X射线衍射和扫描电镜表征手段研究材料的结构和形貌。采用循环伏安、恒电流充放电及交流阻抗等电化学测试方法对材料的电化学性能进行分析。结果表明,氢氧化镍@生物质炭纤维复合材料中的氢氧化镍以纳米片层结构生长在生物质炭纤维表面,形成以氢氧化镍纳米片为壳、生物质炭纤维为核的核壳式结构;生物质炭纤维的引入能有效改善氢氧化镍的分散性,降低材料的电子转移阻力,进而提高氢氧化镍@生物质炭纤维复合材料的电化学性能。
Ni(OH)_2@carbon composites were synthesized via chemical bath method using the carbon obtained by carbonized cotton under inert gas atmosphere as carrier, and were applied as electrode materials for supercapacitor. The structure and morphology of the as-prepared materials were studied by X-ray diffraction and scanning electron microscopy, respectively. The electrochemical performance was measured by electrochemical tests such as cyclic voltammetry, galvanostatic charge and discharge and AC impedance. The results showed that Ni(OH)_2@carbon composite possessed the core-shell nanostructure with the Ni(OH)_2 nanosheet growing over the carbon surface as the shell and the carbon as the core. Moreover, the addition of carbon could effectively improve the dispersion of Ni(OH)_2, reduce the electron transfer resistance of electrode materials, thereby promote the electrochemical performance of Ni(OH)_2@carbon composite.
Ni(OH)_2@carbon composites were synthesized via chemical bath method using the carbon obtained by carbonized cotton under inert gas atmosphere as carrier, and were applied as electrode materials for supercapacitor. The structure and morphology of the as-prepared materials were studied by X-ray diffraction and scanning electron microscopy, respectively. The electrochemical performance was measured by electrochemical tests such as cyclic voltammetry, galvanostatic charge and discharge and AC impedance. The results showed that Ni(OH)_2@carbon composite possessed the core-shell nanostructure with the Ni(OH)_2 nanosheet growing over the carbon surface as the shell and the carbon as the core. Moreover, the addition of carbon could effectively improve the dispersion of Ni(OH)_2, reduce the electron transfer resistance of electrode materials, thereby promote the electrochemical performance of Ni(OH)_2@carbon composite.
引文
[1]李丹,刘玉荣,林保平,等.超级电容器用石墨烯/金属氧化物复合材料[J].化学进展,2015,27(4):404-415.
[2]陈英放,李媛媛,邓梅根.超级电容器的原理及应用[J].电子元件与材料,2008,27(4):6-9.
[3]Yang W,Feng Y Y,Xiao D,et al.Fabrication of microporous and mesoporous carbon spheres for high-performance supercapacitor electrode materials[J].International Journal of Energy Research,2015,39(6):805-811.
[4]赵廷凯,吉翔麟,金文博,等.石墨烯/碳纳米管复合材料的制备及其电化学电容性能[J].科学通报,2017,62(11):1185-1190.
[5]Feng Y Y,Huang H B,Yang W,et al.Sulfur-doped microporous carbons developed from coal for enhanced capacitive performances of supercapacitor electrodes[J].Integrated Ferroelectrics,2018,188(1):44-56.
[6]Lu Q,Lattanzi M W,Chen Y,et al.Supercapacitor electrodes with high-energy and power densities prepared from monolithic NiO/Ni nanocomposites[J].Angewandte Chemie,2011,123(30):6979-6982.
[7]Lang J W,Kong L B,Wu W J,et al.Facile approach to prepare loose-packed NiO nano-flakes materials for supercapacitors[J].Chemical Communications,2008(35):4213-4215.
[8]李晨,张熊,王凯,等.基于CO2转化的碳材料制备及其在超级电容器中的应用[J].储能科学与技术,2017,6(5):1041-1049.
[9]王宝,姚龙辉,岳红彦,等.MnO2-碳复合材料在超级电容器中的应用研究进展[J].化工新型材料,2018(2):5-7+13.
[10]刘忠范.多孔三维寡层类石墨烯:超高功率超级电容器碳材料[J].物理化学学报,2017,33(5):855-856.
[11]Yang W,Feng Y Y,Wang N,et al.Facile microwave-assisted synthesis of sheet-like cobalt hydroxide for energystorage application:Effect of the cobalt precursors[J].Journal of Alloys&Compounds,2015,644:836-845.
[12]Hu C C,Chen J C,Chang K H.Cathodic deposition of Ni(OH)2and Co(OH)2for asymmetric supercapacitors:Importance of the electrochemical reversibility of redox couples[J].Journal of Power Sources,2013,221:128-133.
[13]冯艳艳,黄宏斌,张心桔,等.高性能镍钴层状双金属氢氧化物的制备及其电化学性能研究[J].物理学报,2017,66(24):245-253.
[14]温雅琼,李作鹏,邢宝岩,等.Ni(OH)2/石墨烯/Co(OH)2电极材料制备及其电容性能研究[J].现代化工,2017,37(7):68-73.
[15]李丽,张来苹.β-Ni(OH)2/石墨烯复合纳米材料的制备及其电化学性能研究[J].化工新型材料,2016(12):43-45.
[16]王芳咏,王君,关大辉.碳纳米管/Fe3O4复合电极材料电化学性能研究[J].哈尔滨理工大学学报,2017,22(1):129-135.
[2]陈英放,李媛媛,邓梅根.超级电容器的原理及应用[J].电子元件与材料,2008,27(4):6-9.
[3]Yang W,Feng Y Y,Xiao D,et al.Fabrication of microporous and mesoporous carbon spheres for high-performance supercapacitor electrode materials[J].International Journal of Energy Research,2015,39(6):805-811.
[4]赵廷凯,吉翔麟,金文博,等.石墨烯/碳纳米管复合材料的制备及其电化学电容性能[J].科学通报,2017,62(11):1185-1190.
[5]Feng Y Y,Huang H B,Yang W,et al.Sulfur-doped microporous carbons developed from coal for enhanced capacitive performances of supercapacitor electrodes[J].Integrated Ferroelectrics,2018,188(1):44-56.
[6]Lu Q,Lattanzi M W,Chen Y,et al.Supercapacitor electrodes with high-energy and power densities prepared from monolithic NiO/Ni nanocomposites[J].Angewandte Chemie,2011,123(30):6979-6982.
[7]Lang J W,Kong L B,Wu W J,et al.Facile approach to prepare loose-packed NiO nano-flakes materials for supercapacitors[J].Chemical Communications,2008(35):4213-4215.
[8]李晨,张熊,王凯,等.基于CO2转化的碳材料制备及其在超级电容器中的应用[J].储能科学与技术,2017,6(5):1041-1049.
[9]王宝,姚龙辉,岳红彦,等.MnO2-碳复合材料在超级电容器中的应用研究进展[J].化工新型材料,2018(2):5-7+13.
[10]刘忠范.多孔三维寡层类石墨烯:超高功率超级电容器碳材料[J].物理化学学报,2017,33(5):855-856.
[11]Yang W,Feng Y Y,Wang N,et al.Facile microwave-assisted synthesis of sheet-like cobalt hydroxide for energystorage application:Effect of the cobalt precursors[J].Journal of Alloys&Compounds,2015,644:836-845.
[12]Hu C C,Chen J C,Chang K H.Cathodic deposition of Ni(OH)2and Co(OH)2for asymmetric supercapacitors:Importance of the electrochemical reversibility of redox couples[J].Journal of Power Sources,2013,221:128-133.
[13]冯艳艳,黄宏斌,张心桔,等.高性能镍钴层状双金属氢氧化物的制备及其电化学性能研究[J].物理学报,2017,66(24):245-253.
[14]温雅琼,李作鹏,邢宝岩,等.Ni(OH)2/石墨烯/Co(OH)2电极材料制备及其电容性能研究[J].现代化工,2017,37(7):68-73.
[15]李丽,张来苹.β-Ni(OH)2/石墨烯复合纳米材料的制备及其电化学性能研究[J].化工新型材料,2016(12):43-45.
[16]王芳咏,王君,关大辉.碳纳米管/Fe3O4复合电极材料电化学性能研究[J].哈尔滨理工大学学报,2017,22(1):129-135.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |