Two-dimensional（2D） organic nanomaterials are fascinating because of their unique properties and pentential applications in future optoelectronic devices.Polyaniline（PANI） has attracted much attention for its high...Two-dimensional（2D） organic nanomaterials are fascinating because of their unique properties and pentential applications in future optoelectronic devices.Polyaniline（PANI） has attracted much attention for its high conductivity,good environmental stability and unusual doping chemistry.We report on liquid-phase exfoliation of layered PANI films grown by electrochemical polymerization.Atomic force microscopy images demonstrate that few-or even mono-layer PANI nanosheets can be fabricated.The PANI nanosheets can be transferred onto a variety of surfaces,providing a promising route to their incorporation into a variety of devices for further studies and various applications.展开更多
主要是用乙酸钴和四氯化锡分散在石墨烯乙醇溶液中,先进行液相聚合,然后在高温下还原,得到锡-钴-碳-石墨烯复合材料。在锡钴比例一定,当石墨烯含量为0.55 g时,制备的复合材料具有较好的电化学性能,透射电镜(TEM)、扫描电镜(SEM)图像表...主要是用乙酸钴和四氯化锡分散在石墨烯乙醇溶液中,先进行液相聚合,然后在高温下还原,得到锡-钴-碳-石墨烯复合材料。在锡钴比例一定,当石墨烯含量为0.55 g时,制备的复合材料具有较好的电化学性能,透射电镜(TEM)、扫描电镜(SEM)图像表明金属合金均匀分布,颗粒大小在10 nm左右,且首次充电比容量为837.2 m Ah/g,经过80次循环之后比容量还能保持在796.6 m Ah/g,容量的保持率能达到90%以上。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11574382,51372095,and 91323304)the Key Research Program of Frontier Sciences,Chinese Academy of Sciences(Grant No.QYZDJ-SSW-SYS014)
文摘Two-dimensional（2D） organic nanomaterials are fascinating because of their unique properties and pentential applications in future optoelectronic devices.Polyaniline（PANI） has attracted much attention for its high conductivity,good environmental stability and unusual doping chemistry.We report on liquid-phase exfoliation of layered PANI films grown by electrochemical polymerization.Atomic force microscopy images demonstrate that few-or even mono-layer PANI nanosheets can be fabricated.The PANI nanosheets can be transferred onto a variety of surfaces,providing a promising route to their incorporation into a variety of devices for further studies and various applications.
文摘主要是用乙酸钴和四氯化锡分散在石墨烯乙醇溶液中,先进行液相聚合,然后在高温下还原,得到锡-钴-碳-石墨烯复合材料。在锡钴比例一定,当石墨烯含量为0.55 g时,制备的复合材料具有较好的电化学性能,透射电镜(TEM)、扫描电镜(SEM)图像表明金属合金均匀分布,颗粒大小在10 nm左右,且首次充电比容量为837.2 m Ah/g,经过80次循环之后比容量还能保持在796.6 m Ah/g,容量的保持率能达到90%以上。
