[1]秦勇,赵璟悠,晁磊,等.石墨烯负载钴镍双金属氢氧化物纳米线的制备与性能研究[J].常州大学学报(自然科学版),2015,(04):1-6.[doi:10.3969/j.issn.2095-0411.2015.04.001]
　QIN Yong,ZHAO Jingyou,CHAO Lei,et al.Preparation and Performance of Cobalt-Nickel Double Hydroxide Nanowire-Decorated Graphene Composite[J].Journal of Changzhou University(Natural Science Edition),2015,(04):1-6.[doi:10.3969/j.issn.2095-0411.2015.04.001]
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石墨烯负载钴镍双金属氢氧化物纳米线的制备与性能研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年04期
页码:
1-6
栏目:
材料科学与工程
出版日期:
2015-11-15

文章信息/Info

Title:
Preparation and Performance of Cobalt-Nickel Double Hydroxide Nanowire-Decorated Graphene Composite
作者:
秦勇1; 2; 赵璟悠3; 晁磊1; 2; 王成1; 2; 储富强1; 2; 孔泳1; 2; 陶永新1; 2
1. 常州大学 石油化工学院,江苏 常州 213164; 2. 江苏省绿色催化材料与技术重点实验室,江苏 常州 213164; 3. 江苏省苏州市公安局刑事警察支队,江苏 苏州 215000
Author(s):
QIN Yong1; 2;  ZHAO Jingyou3; CHAO Lei1; 2;  WANG Cheng1; 2;  CHU Fuqiang1; 2;  KONG Yong1; 2;  TAO Yongxin1; 2
1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; 2. Jiangsu Key Laboratory of Advanced Catalytic Material and Technology, Changzhou University, Changzhou 213164, China; 3. Criminal Police Detachment of Suzhou Public Security Bereau, Suzhou 215000, China
关键词:
石墨烯;  电剥离;  双金属氢氧化物;  纳米线;  超级电容器
Keywords:
graphene;  electrochemical exfoliation;  double metal hydroxide;  nanowire;  supercapacitor
分类号:
TK 8
DOI:
10.3969/j.issn.2095-0411.2015.04.001
文献标志码:
A
摘要:
在能源转化与存储领域,寻找优异的电极材料是目前的研究热点。以电剥离石墨烯为载体,硝酸钴、硝酸镍为原料,通过水热自组装制备了电剥离石墨烯负载钴镍双金属氢氧化物纳米线复合材料(CoNi-DHNW/EG)。以X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)等对材料的结构和形貌进行了表征。结果表明,钴镍双金属氢氧化物以纳米线的形式均匀分布在石墨烯上,其直径约为20 nm。将CoNi-DHNW/EG用作超级电容器的电极材料,考察了其在电存储方面的应用性能,发现当钴镍双金属氢氧化物与电剥离石墨烯的质量比为7:3,Co(OH)2和Ni(OH)2的物质的量比为2:1,水热温度为120 ℃时,得到的Co0.66Ni0.33-DHNW/EG复合材料具有最佳的电存储性能,其比电容达到225 F·g-1。该复合材料制备简单、原料易得、对环境无害,因此有望在能源存储与转化领域发挥重要作用。
Abstract:
Currently, seeking excellent electrode materials for energy storage and conversion is a hot researching topic. Cobalt and nickel double metal hydroxide nanowire-decorated electrochemical exfoliated graphene composite(CoNi-DHNW/EG)was prepared through hydrothermal self-assemble strategy using electrochemical exfoliated graphene as support,and cobalt nickel nitrate salts as raw materials. X-ray diffraction(XRD), scanning electron microscopy(SEM)and transmission electron microscopy(TEM)were used to characterize the structure and morphology of the composites. The results show that CoNi-DHNW is well distributed on graphene sheets with a diameter of 20 nm. The electric storage performance of CoNi-DHNW/EG was then explored. It is found that when the mass ratio of the CoNi double hydroxides to EG is 7:3, the molar ratio of Co(OH)2 to Ni(OH)2 is 2:1, hydrothermal temperature is 120 ℃,Co0.66Ni0.33DHNW/EG exhibits the optimum specific capacitance up to 225 F·g-1. The composite may be a promising material for the storage and conversion due to its facile fabrication process, low-cost raw materials, and environmental friendliness.

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备注/Memo

备注/Memo:
收稿日期:2015-08-06。作者简介:秦勇(1976—),男,湖北荆州人,博士,副教授,主要从事石墨烯基复合材料的研究与开发。
更新日期/Last Update: 2015-10-20