title: Ni(OH)2nanosheets grown on porous hybrid g-C3N4/RGO network as high performance supercapacitor electrode.
abstract: A porous hybrid g-C3N4/RGO (CNRG) material has been fabricated through a facile hydrothermal process with the help of glucose molecules, and serves as an efficient immobilization substrate to support ultrathin Ni(OH)2nanosheets under an easy precipitation process. It was found that the g-C3N4flakes can uniformly coat on both sides of the RGO, forming sandwich-type composites with a hierarchical structure. It is worth noting that the introduction of the g-C3N4can effectively achieve the high dispersion and avoid the agglomeration of the nickel hydroxide, and significantly enhance the synthetically capacitive performance. Owning to this unique combination and structure, the CNRG/Ni(OH)2composite possesses large surface area with suitable pore size distribution, which can effectively accommodate the electrolyte ions migration and accelerate efficient electron transport. When used as electrode for supercapacitor, the hybrid material exhibits high supercapacitive performance, such as an admirable specific capacitance (1785 F/g at a current density of 2 A/g), desirable rate stability (retain 910 F/g at 20 A/g) and favorable cycling durability (maintaining 71.3% capacity after 5000 cycles at 3 A/g). Such desirable properties signify that the CNRG/Ni(OH)2composites can be a promising electrode material in the application of the supercapacitor.
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Jia
authors.initials: J
authors.lastname: Qin
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Huiting
authors.initials: H
authors.lastname: Bi
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Shili
authors.initials: S
authors.lastname: Gai
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Fei
authors.initials: F
authors.lastname: He
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Gao
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Yunlu
authors.initials: Y
authors.lastname: Dai
authors.affiliation: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin 150001, P.R. China.
authors.forename: Xitian
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Dan
authors.initials: D
authors.lastname: Yang
authors.affiliation: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China.
authors.forename: Piaoping
authors.initials: P
authors.lastname: Yang