甲壳素/碳纳米管复合电极的制备及其性能(英文)
发布时间:2021-08-12 15:32
介绍了一种简单、新颖、环保的制备甲壳素/多壁碳纳米管复合电极的工艺方法。先利用一次研磨法制备出甲壳素纳米纤维(CNFs),纤维直径分布在1030 nm之间;然后使用十二烷基苯磺酸钠(SDBS)作为多壁碳纳米管的分散剂,通过超声混合法制备CNFs/碳纳米管(CNTs)复合电极;再使用扫描电镜、力学试验机、四探针、热机械分析仪、电化学工作站等对材料性能进行测试。结果表明,CNFs/CNTs复合薄膜内部纤维相互交织,呈现三维网状结构。在此复合物中,甲壳素起到了增强力学性能和抑制碳纳米管团聚的作用,力学性能随着碳纳米管含量的增加而降低,拉伸强度和杨氏模量低至46.23 MPa和1.18 GPa,相比于甲壳素纯膜(113.48 MPa和3.72 GPa)分别减少了59.3%和68.3%。热膨胀系数从2.84×10-5m/K降至3.42×10-6m/K,仅有甲壳素纯膜的12%。CNFs/CNTs复合材料的电导率(1 471.9 S/m)显著提高且电化学性能优异,电容量在经过1 000次充放电循环之后依然保持在99%以上,在扫描速率为10 m V/s时,复合薄膜的电容量达到48...
【文章来源】:林业工程学报. 2016,1(03)北大核心
【文章页数】:7 页
【文章目录】:
1 Experiment
1.1 Reagents and Materials
1.2 Fabrication of chitin nanofibers(CNFs)
1.3 Preparation of CNFs/CNTs films
2 Characterization
2.1 FE-SEM observation
2.2 Thermomechanical analysis(TMA)
2.3 Mechanical properties
2.4 Conductivity measurements
2.5 Electrochemical measurements
3 Experimental results
3.1 Photographs of the fabrication and the films
3.2 Morphology of CNFs nanopaper and the com-posite films
3.3 Coefficient of thermal expansion(CTE)
3.4 Tensile properties
3.5 Conductivity properties
3.6 Electrochemical properties
4 Conclusions
本文编号:3338582
【文章来源】:林业工程学报. 2016,1(03)北大核心
【文章页数】:7 页
【文章目录】:
1 Experiment
1.1 Reagents and Materials
1.2 Fabrication of chitin nanofibers(CNFs)
1.3 Preparation of CNFs/CNTs films
2 Characterization
2.1 FE-SEM observation
2.2 Thermomechanical analysis(TMA)
2.3 Mechanical properties
2.4 Conductivity measurements
2.5 Electrochemical measurements
3 Experimental results
3.1 Photographs of the fabrication and the films
3.2 Morphology of CNFs nanopaper and the com-posite films
3.3 Coefficient of thermal expansion(CTE)
3.4 Tensile properties
3.5 Conductivity properties
3.6 Electrochemical properties
4 Conclusions
本文编号:3338582
本文链接:https://www.wllwen.com/kejilunwen/cailiaohuaxuelunwen/3338582.html