title: Facile synthesis of diverse graphene nanomeshes based on simultaneous regulation of pore size and surface structure.
abstract: Recently, graphene nanomesh (GNM) has attracted great attentions due to its unique porous structure, abundant active sites, finite band gap and possesses potential applications in the fields of electronics, gas sensor/storage, catalysis, etc. Therefore, diverse GNMs with different physical and chemical properties are required urgently to meet different applications. Herein we demonstrate a facile synthetic method based on the famous Fenton reaction to prepare GNM, by using economically fabricated graphene oxide (GO) as a starting material. By precisely controlling the reaction time, simultaneous regulation of pore size from 2.9 to 11.1 nm and surface structure can be realized. Ultimately, diverse GNMs with tunable band gap and work function can be obtained. Specially, the band gap decreases from 4.5-2.3 eV for GO, which is an insulator, to 3.9-1.24 eV for GNM-5 h, which approaches to a semiconductor. The dual nature of electrophilic addition and oxidizability of HO(•) is responsible for this controllable synthesis. This efficient, low-cost, inherently scalable synthetic method is suitable for provide diverse and optional GNMs, and may be generalized to a universal technique.
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.|Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan 430062, PR China.
authors: Jia
authors: J
authors: Zhang
authors: Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors: Huaibing
authors: H
authors: Song
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.|Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan 430062, PR China.
authors: Dawen
authors: D
authors: Zeng
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors: Hao
authors: H
authors: Wang
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors: Ziyu
authors: Z
authors: Qin
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors: Keng
authors: K
authors: Xu
authors: Hubei Institute of Aerospace Chemotechnology, No. 58, Qinghe Road, Xiangyang 441003, PR China.
authors: Aimin
authors: A
authors: Pang
authors: State Key Laboratory of Material Processing and Die &Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
authors: Changsheng
authors: C
authors: Xie