摘要
首先通过原位聚合的方法制备聚苯胺(PANI)包覆纤维素纳米晶(CNC)(CNC@PANI)纳米复合物,进而采用共混法制备CNC@PANI与rGO的复合电极材料(CNC@PANI/rGO)。研究不同苯胺与CNC的用量比对所得复合电极材料的结构形貌和电化学性能的影响。采用扫描电镜、X射线衍射、红外光谱以及电化学工作站等测试手段对制备的复合电极材料的结构形貌、电化学性能进行分析表征。结果表明,PANI成功地包覆在CNC的表面,且PANI通过在CNC表面的包覆,可明显改善其分散性和比表面积,以及与石墨烯的复合效果。CNC@PANI-1/rGO复合电极材料在20mV/s扫描速率下的比电容可高达309F/g,远远高于PANI/rGO复合电极材料的155F/g。
Here, polyaniline （ PANI ） coated cellulose nanocrystals （CNC） complexs （ CNC @ PANI ） were fabricated by in-situ polymerization. Further, blending method was used to fabricated CNC@PANI/rGO composite eletrode materials. The effect of the dosages of aniline and CNC on the structure and eletrochemical properties of the composites was studied. The structure and eletrochemical properties of the composites were charaterized by transmission electron microscopy （TEM）, X-ray diffrcation spectroscopy （XRD）, infrared spectroscopy （IR） and electrochemical wordstation. The results present that PANI is successfully coated on the surface of CNCs. With the covrage of PANI on the surface of CNCs, the dispersity and specific surface area of the PANI and its composite effect with rGO are improved. The specific capacitance of the CNC@PANI-1/rGO composite electrode materials is up to 309 F/g, much higher than 155 F/g of the PANI/rGO composites electrode materials.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2017年第11期166-170,共5页
Polymer Materials Science & Engineering
基金
广西自然科学基金资助项目(2015GXNSFAA139256
2015GXNSFAA139277
2016GXNSFAA380004)
国家自然科学基金资助项目(21664006)
关键词
聚苯胺
纤维素纳米晶
石墨烯
复合材料
电极材料
polyaniline
cellulose nanocrystal
graphene
composite
electrode materials
