Hydrothermal carbonization is one of the most appealing strategies to prepare carbon spheres（CSs）. Nevertheless, the precursors of hydrothermal carbonization are limited to several saccharides currently and the obta...Hydrothermal carbonization is one of the most appealing strategies to prepare carbon spheres（CSs）. Nevertheless, the precursors of hydrothermal carbonization are limited to several saccharides currently and the obtained CSs are easily interconnected among each other, giving rise to difficulties in further treatment and applications. In this work, ascorbic acid was used as precursor in the hydrothermal procedure and monodispersed CSs could be fa- bricated without any catalysts. In addition, the composites of CSs and chemical reduced graphene oxide（CRG） pos- sessing three dimensional network structures were fabricated, which exhibited excellent electrochemical performance used as anode in lithium ion battery（LIB）. Meanwhile, the effects of size distributions of CSs on the electrochemical performances were evaluated.展开更多
基金Supported by the National Natural Science Foundation of China（No.51502231） and the Natural Science Foundation of Shaanxi Province, China（No.2017JM5064）.
文摘Hydrothermal carbonization is one of the most appealing strategies to prepare carbon spheres（CSs）. Nevertheless, the precursors of hydrothermal carbonization are limited to several saccharides currently and the obtained CSs are easily interconnected among each other, giving rise to difficulties in further treatment and applications. In this work, ascorbic acid was used as precursor in the hydrothermal procedure and monodispersed CSs could be fa- bricated without any catalysts. In addition, the composites of CSs and chemical reduced graphene oxide（CRG） pos- sessing three dimensional network structures were fabricated, which exhibited excellent electrochemical performance used as anode in lithium ion battery（LIB）. Meanwhile, the effects of size distributions of CSs on the electrochemical performances were evaluated.
