Patent
Method for compounding graphene and metallic oxide/metallic compound and composite material thereof
Liu Hao,Yi Zhang,Mei Jun,Zehua Zhu,Liu Huanming,Huang Jiawei +5 more
- 08 May 2013
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TL;DR: In this paper, a method for compounding graphene and a metallic oxide/metallic compound was proposed, in which a reducing agent was not used, and the composite material was reduced by utilizing the reducing property of graphene oxide in a hydrothermal environment.
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Abstract: The invention discloses a method for compounding graphene and a metallic oxide/metallic compound. The method comprises the following steps: a, dissolving graphene oxide in a dispersing agent, regulating the PH value of the solution to be 5-9, and preparing a graphene oxide solution; and b, adding the oxide/metallic compound into the graphene oxide solution, ultrasonically mixing, reacting at the temperature of 70-120 DEG C for 32-40 hours. According to the method for compounding graphene and the metallic oxide/metallic compound, a reducing agent is not used, the composite material is reduced by utilizing the reducing property of graphene oxide in a hydrothermal environment, and the final product forms the uniformly dispersed graphene and oxide/metallic compound composite material by utilizing the high water solubility of the graphene oxide; and moreover, according to the material, the cycle performance, rate capability and gram volume of the oxide which serves as an electrode of a lithium ion battery can be effectively improved, and the impendence is reduced.
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Citations
Patent
Nano sheet MnO2-graphene composite material, preparation method thereof and super capacitor
Yuanzhuang Liu,Xia Yonggao,Liu Zhaoping +2 more
- 19 Mar 2014
TL;DR: In this paper, a preparation method of a nano sheet MnO2-graphene composite material, which comprises the following steps: adding a manganese nitrate solution in a mixed solution of hydrogen peroxide and alkaline to perform redox reaction, washing and drying to obtain powder, dispersing the powder in an ammonium persulphate solution to treat, and then dispersing in an organic solvent to obtain a nano-sheet MnO 2 solution; and diluting the nano-2 solution, mixing with a dispersion liquid of graphene powder to obtain the
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Patent
Hydrothermal preparation method of Fe2O3-SnO2/graphene ternary composite nano-material
Zhang Haijiao,Tan Yingjie,Li Liang,Xuedong Zhu,Xu Jing,Jiao Zheng +5 more
- 11 Mar 2015
TL;DR: In this article, a ternary composite nano-material with a stable structure is prepared through the one-step hydrothermal method with graphene, iron chloride and stannous chloride as raw materials.
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Patent
Preparation method for graphene loaded cobalt nickel phosphide composite material
Liu Shuling,Liu Yingying,Jianbo Tong,Jingwu Du,Cheng Fangling +4 more
- 15 Jul 2015
TL;DR: In this paper, a preparation method for a graphene loaded cobalt nickel phosphide composite material is described, which includes dissolving a nickel salt and a cobalt salt in deionized water, putting graphene oxide in de ionized water to conduct ultrasonic treatment into a homogeneous solution, mixing the two fully, then transferring the mixture into a polytetrafluoroethylene lining, then adding red phosphorus, finally performing water hydro-thermal treatment, and subjecting the obtained product to vacuum drying.
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Patent
Three-dimensional porous lithium ion battery anode material of graphene composite material and preparation method of three-dimensional porous lithium ion battery anode material
Chen Jian,Gao Ying,Xiangru Shi,Wang Wenxiu,Yuanfang Shen +4 more
- 11 Nov 2015
TL;DR: In this article, a three-dimensional porous lithium ion battery anode material of a graphene composite material and a preparation method of the lithium ion anode materials were presented. But the preparation method for the 3D porous anode was not discussed.
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Patent
Preparation method of manganese oxide/graphene nano-composite material, lithium ion battery negative electrode and lithium ion battery
Huang Jiarui,Liu Xiaosi,Zhang Wen,Zhai Muheng +3 more
- 21 Dec 2016
TL;DR: In this article, a preparation method of a manganese oxide/graphene nano-composite material, a lithium ion battery negative electrode and a battery was presented, and the preparation method comprises the steps of: a hydrothermal process, a compounding process and a roasting process.
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Patent
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