文章摘要
聚苯胺包覆纤维素纳米晶/石墨烯复合电极材料的制备与性能
Preparation and Properties of Polyaniline Coated Cellulose Nanocrystals/Graphene Composite Electrode Materials
  
DOI:10.16865/j.cnki.1000-7555.2017.11.027
中文关键词: 聚苯胺  纤维素纳米晶  石墨烯  复合材料  电极材料
英文关键词: polyaniline  cellulose nanocrystal  graphene  composite  electrode materials
基金项目: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)
作者单位
刘红霞, 徐 阳, 周昌兵, 韦 春, 樊 新 桂林理工大学有色金属及材料加工新技术教育部重点实验室 材料科学与工程学院广西 桂林 541004 
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中文摘要:
      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20 mV/s扫描速率下的比电容可高达309 F/g,远远高于PANI/rGO复合电极材料的155 F/g。
英文摘要:
      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.
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