Liwei Yan
Henan University
3 Papers
1 Citations
Liwei Yan is an academic researcher from Henan University. The author has contributed to research in topics: Graphene & Lattice plane. The author has an hindex of 1, co-authored 2 publications.
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Papers
Realizing the high energy density and flexibility of a fabric electrode through hierarchical structure design.
TL;DR: In this paper , a free-standing hybrid nanofabric with superior mechanical and electrochemical stabilities is reported for flexible lithium-ion batteries (LIBs), which is prepared by electrospinning and carbonization, during which the self-cyclization of PAN is hindered by its reaction with melamine, resulting in a highly disordered and expanded turbostratic carbon structure with nickel metal thiophosphate (NiPS3) nanosheets embedded in it.
1
Patent
Method for preparing high-quality graphene quantum dot or large-lamella graphene oxide
Zhang Jingwei,Hui Wang,Liwei Yan,Zhang Jiwei,Gong Chunhong +4 more
- 19 Mar 2019
TL;DR: In this paper, a single crystal surface is selected to be exposed into an electrolyte to be subjected to an electrochemical stripping reaction by utilizing a difference of electrochemical reaction energy of different crystal surfaces of graphite, and thus, large-lamella graphene oxide is obtained in an acidic or neutral electrolyte; and a blue fluorescent graphene quantum dot which is high in yield, capable of realizing further separation without aftertreatment, good in water solubility, uniform in size, unique in chemical component and narrow in spectrum and has a half-peak breadth is prepared in an
1
Efficient and scalable high-quality graphene nanodot fabrication through confined lattice plane electrochemical exfoliation
Hui Wang,Kaiyi Zhu,Liwei Yan,Can Wei,Yu Zhang,Chunhong Gong,Jianhui Guo,Jiwei Zhang,Dongmao Zhang,Dongmao Zhang,Jingwei Zhang +10 more
TL;DR: Reported is a confined lattice plane electrochemical exfoliation method that exploits the electrochemical reaction of face (basal) or side (edge) planes of highly oriented pyrolytic graphite (HOPG) while other planes are blocked using wax, based on the anisotropy of HOPG for efficient and effective fabrication of graphene nanodots with uniform size distribution.