【作者】 丁书江；

【Author】 Shujiang Ding;Department of Applied Chemistry,Xi’an Jiaotong University;

【机构】 西安交通大学理学院应用化学系；

【摘要】 我们报道了一种在磺化聚苯乙烯,碳纳米管,聚合物管或者介孔碳纤维和石墨烯上生长金属氧化物或硫化物纳米片的普适性方法。经过煅烧处理后,可以分别得到零维的碳空心球支撑的金属氧化物纳米片,一维碳支撑的金属氧化物纳米片以及二维石墨烯支撑的金属氧化物纳米片结构材料。由于多孔的结构(纳米片之间堆积形成)和空心结构,这些复合材料可以存储更多的锂离子,具有更快的锂离子传输速率;另碳纳米球,碳纳米管和石墨烯等导电载体有利于提高电子传输性能,从而提升了锂离子存储性能。更多还原

【Abstract】 Herein,we report some facile methods to directly grow metal oxides or sulfides nanosheets on sulfonated polystyrene spheres,CNTs,polymeric nanotubes or mesoporous carbon fibers and graphene oxide.After calcinations in air or inert atmosphere,these materials were converted into metal oxides hollow spheres assembled from nanosheets and metal oxides nanosheets ?carbon(graphene and CNTs) materials.Due to the porous structure(derived from the pile of nanosheets) and internal voids,these metal oxide nanosheets can store more lithium ions,have more fast lithium ions transfer rate and thus exhibit improved lithium storage capability.The carbon hollow spheres,CNTs and graphene support serves as a highly conductive substrate that is beneficial to the better lithium ions storage performance.更多还原