Synthesis of graphene quantum dots for their supramolecular polymorphic architectures  

作　　者：Weifeng Chen Guo Lv Qiyun Zhou Jialu Shen Jie Cao Xiang Liu Zhongxu Dai 

机构地区：[1]Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials,College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China

出　　处：《Nano Research》2021年第4期1228-1231,共4页纳米研究（英文版）

基　　金：the work from the National Natural Science Foundation of China(No.21805166);the 111 Project of Hubei Province(No.D20015);Foundation of Science and Technology Bureau of Yichang City(No.A18-302-a07).

摘　　要：How to regulate the supramolecular structures in the assembly of graphene quantum dots(GQDs)is still a great challenge to be overcome.Herein,the GQDs of 1-3 layers with high quality are synthesized from the new precursor m-trihydroxybenzene in a green method.More importantly,a strategy for designing the supramolecular structures of GQDs is demonstrated,and the novel supramolecular morphologies of GQDs have been constructed for the first time.Moreover,the supramolecular morphologies of GQDs can be well controlled by regulating the preparation conditions,and the formation mechanism of the branch-like supramolecular structure has been explained by the the diffusion-limited aggregation(DLA)model.This work not only develops a new precoursor to synthesize GQDs,but also opens up an effective route toform the polymorphic supermolecules,thus greatly facilitating their potential applications.

关 键 词：graphene quantum dots SUPERMOLECULE m-trihydroxybenzene synthesis the diffusion-limited aggregation 

分 类 号：TQ127.11[化学工程—无机化工]