We report a novel method to prepare nanohybrid shish-kebab (NHSK) structure of polyethylene (PE) and carbon nanotube (CNT). Pristine CNTs without surface modification with high concentration was effectively dispersed ...We report a novel method to prepare nanohybrid shish-kebab (NHSK) structure of polyethylene (PE) and carbon nanotube (CNT). Pristine CNTs without surface modification with high concentration was effectively dispersed in xylene solution by a simple shearing method, which induces the quick crystallization of PE in xylene to form a novel NHSK structure with more dense and smaller PE kebab on CNT axis. The flocculated NHSK product was transferred quickly from the xylene solution to the ethanol solution, in order to shorten the preparation time. The freeze-drying method was used in vacuum instead of high-temperature drying to avoid the aggregation of NHSK product. These improvements allow the formation of NHSK with an absolute yield of 200 mg·h-1 , which is 2000 folds of that reported previously. It is favorable to apply this structured material in high performance nanocomposite, by improving the compatibility of CNTs in polymer and the interfacial force between CNTs and polymer.展开更多
该文是一篇近三个月的超级电容器文献评述,我们以"supercapacitor"为关键词检索了Web of Science从2015年8月1日至2015年10月31日上线的超级电容器研究论文,共有463篇,选取了其中100篇加以评论。双电层超级电容器主要研究了...该文是一篇近三个月的超级电容器文献评述,我们以"supercapacitor"为关键词检索了Web of Science从2015年8月1日至2015年10月31日上线的超级电容器研究论文,共有463篇,选取了其中100篇加以评论。双电层超级电容器主要研究了新型多孔碳材料、碳纳米管材料、石墨烯材料可控制备对其性能的影响。赝电容超级电容器的研究主要集中在过渡金属氧化物复合材料、导电聚合物复合材料和杂质原子掺杂碳材料等三个方面。非对称超级电容器包括水系非对称超级电容器和有机系非对称超级电容器两个方面的研究。除了上述以材料为主的研究之外,电解液是另一个研究重点,有多篇研究论文报道。展开更多
基金National Natural Science Foundation of China(22109085 and 21975142)Jiangsu Special fund project for transformation of scientific and technological achievements(BA2020058).
基金Supported by the State Key Development Program for Basic Research of China(2011CB932602)the National NaturalScience Foundation of China(20736004,20736007,2007AA03Z346)
文摘We report a novel method to prepare nanohybrid shish-kebab (NHSK) structure of polyethylene (PE) and carbon nanotube (CNT). Pristine CNTs without surface modification with high concentration was effectively dispersed in xylene solution by a simple shearing method, which induces the quick crystallization of PE in xylene to form a novel NHSK structure with more dense and smaller PE kebab on CNT axis. The flocculated NHSK product was transferred quickly from the xylene solution to the ethanol solution, in order to shorten the preparation time. The freeze-drying method was used in vacuum instead of high-temperature drying to avoid the aggregation of NHSK product. These improvements allow the formation of NHSK with an absolute yield of 200 mg·h-1 , which is 2000 folds of that reported previously. It is favorable to apply this structured material in high performance nanocomposite, by improving the compatibility of CNTs in polymer and the interfacial force between CNTs and polymer.
文摘该文是一篇近三个月的超级电容器文献评述,我们以"supercapacitor"为关键词检索了Web of Science从2015年8月1日至2015年10月31日上线的超级电容器研究论文,共有463篇,选取了其中100篇加以评论。双电层超级电容器主要研究了新型多孔碳材料、碳纳米管材料、石墨烯材料可控制备对其性能的影响。赝电容超级电容器的研究主要集中在过渡金属氧化物复合材料、导电聚合物复合材料和杂质原子掺杂碳材料等三个方面。非对称超级电容器包括水系非对称超级电容器和有机系非对称超级电容器两个方面的研究。除了上述以材料为主的研究之外,电解液是另一个研究重点,有多篇研究论文报道。