祝贺王泉高等同学的文章
“Outside-in catalytic graphitization method for synthesis of dispersible and uniform graphitic porous carbon nanospheres”
被Journal of Colloid and Interface Science 接受发表！
Quan-Gao Wang, Cheng-Long Li, Lei He, Xiao-Fei Yu, Wei-Ping Zhang, An-Hui Lu *. Outside-in catalytic graphitization method for synthesis of dispersible and uniform graphitic porous carbon nanospheres. Journal of Colloid and Interface Science, 2021,599: 586-594, DOI:10.1016/J.JCIS.2021.04.093. [DOWNLOAD]
Abstract
Common strategies to synthesize graphitic porous carbon nanospheres suffer from energy consumption, exorbitant cost and harsh condition, and lead to closed pore and polydisperse particles. The successful manipulation of adjustable graphitic skeleton, developed porosity, good monodispersity and dispersity of carbon nanospheres is essential to meet their structural varieties and practical applications. Herein, an outside-in catalytic graphitization method is reported to synthesize carbon nanospheres with abovementioned properties, which involves interfacial assembly between layered double hydroxides nanosheets and polymer nanospheres, in-situ generation of nickel nanoparticles, and outside-in catalytic graphitization. The unusual phenomenon is that the in-situ generated nickel nanoparticles are preferentially oriented to the carbon side rather than to the free open space. The interface reactions between nickel nanoparticles and amorphous carbons drive continuous etching of carbon species to form graphitic structure in the interior of spheres. The graphitic structure can be tuned by changing effective charge ratio and pyrolysis conditions and obtained carbon nanospheres possessed good dispersibility in water and ethanol. Moreover, such carbon nanospheres exhibited good performance when used as anodes in lithium-ion batteries. These findings may pave new ways for synthesizing multifarious carbon nanomaterials with adjustable graphitic skeleton, developed porosity, good monodispersity and dispersibility for various applications.
