采用浸渍-水热沉淀法合成CuO掺杂Ni（OH）2前驱体,经300℃煅烧得NiO-CuO复合氧化物。利用FT-IR、XRD、SEM和恒流充放电分析测试复合材料的相结构、微观形貌和电化学性能。结果表明,当镍铜比为4∶1时,在5mA/cm2的电流密度下所得复合氧化物单电极比电容为822F/g,180次循环后衰减率仅为4.5%,循环可逆性能好。
Nickel hydroxide doped with copper oxide were synthesized by dipping at hydrothermal process.They were annealed in air 300℃ to obtain composite oxide.The samples of phase structure,micro-cosmic morphology and electrochemical properties were characterized by FT-IR,XRD,SEM and constant-current charge-discharge testing techniques.The results showed that the specific capacitance of the NiO-CuO obtained after calcination as a single electrode was up to 822F/g to 5mA/cm2 discharge when nickel copper than for 4∶1.Then the attenuation rate was only 4.5% after 180 cycle.
参考文献
| [1] | Sonavane A C;Patil P S;Patil R S et al.[J].Journal of Alloys and Compounds,2010,489(02):667-673. |
| [2] | Deng J J;Deng J C;Liu Z L .[J].Journal of Solid State Electrochemistry,2009,13(09):1378-1394. |
| [3] | Sietama J R A;Meeldijk J D;Breejen J P DJ .[J].Angewandte Chemie International Edition,2007,46(24):4547-4549. |
| [4] | 许娟,周益明,王文昌,朱晔,陈智栋.固相反应法制备NiO-Co3O4复合物及其超级电容器性能[J].电子元件与材料,2009(10):18-21. |
| [5] | Moumita Ghosh;Kanishka Biswas;A.Sundaresan;C.N.R.Rao .MnO and NiO nanoparticles:synthesis and magnetic properties[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2006(1):106-111. |
| [6] | 潘路,张祖德.一维纳米Co_3O_4,Ag/Co_3O_4及CuO/Co_3O_4的合成与电催化性能[J].无机化学学报,2010(04):573-580. |
| [7] | 路彦景,李向清,穆劲.CuO-NiO助催化剂对TiO2（P25）光催化活性的影响[J].无机化学学报,2009(07):1149-1152. |
| [8] | 俞燕青,周益明,戴跃华,张黎,吴悦,唐亚文,陆天虹,沈涛.Cu掺杂的NiO的制备及其超级电容器性能[J].南京师大学报（自然科学版）,2007(01):57-60. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%