摘要:
Provided is a method for preparing graphene paper, comprising the followings steps: placing a clean substrate into a reaction chamber, then introducing protective gas into the reaction chamber to purge out air in the reaction chamber; heating the substrate at a temperature of 800 to 1100° C.; continuously introducing carbonaceous material into the reaction chamber for 100 to 300 min, stopping the introduction of carbonaceous material into the reaction chamber, and at the same time stopping heating of the substrate, then cooling the substrate at a rate of 5 to 30° C./min, finally, stopping the introduction of the protective gas, thereby obtaining graphene paper on the surface of said substrate.
摘要:
A Pt—Ru nano-alloy/graphene catalyst comprises graphene as a support, and a Pt—Ru nano-alloy loaded on the graphene. The use of graphene as support for the catalyst takes advantage of the ion effect and tow-dimensional ductility of graphene, which increase the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-alloy particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemistry is also disclosed.
摘要:
A solid electrolyte battery comprises a positive plate (1), a negative plate (2), several composite electrode plates (3) and several solid electrolyte (4), wherein the number of the solid electrolyte (4) is one more than the number of the composite electrode plates (3). The positive plate (1) and the negative plate (2) are spaced oppositely, the composite electrode plates (3) are between the positive plate (1) and the negative plate (2), and both sides of the composite electrode plates (3) are laminated with the positive plate (1) and the negative plate (2) by the solid electrolyte (4), respectively, the structure of the solid electrolyte battery is formed. There is the solid electrolyte battery according to the invention, because the all surfaces of the positive plate (1), the composite electrode plates (3), the negative plate (2) are coated by the positive active material and/or negative material which may form the positive and negative capacitor structures, the positive active material and the negative active material can form good layered laminate structure with the solid electrolyte (4), thus internal resistance of battery is greatly reduced, so as to benefit migration of ions, therefore capacity of battery is improved.
摘要:
A Pt/graphene catalyst comprises graphene as carrier, and Pt loaded on the graphene. The use of graphene as carrier for the catalyst takes advantage of the ion effect and two-dimensional ductility of graphene, which increases the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemostry is also disclosed.
摘要:
An electrode plate is provided. The electrode plate includes a substrate and a coating coated on the substrate plate, wherein the coating includes fluoride oxide graphene materials. The fluoride oxide graphene material has excellent conductivity, so that the electrode material which is made of the graphene material has high energy density and electrical conduction efficiency. A preparing method for the electrode plate, and a super capacitor and a lithium ion battery both prepared with the electrode plate are also provided.
摘要:
A lithium salt-graphene-containing composite material and its preparation method are provided. The composite material has the microstructure which comprises carbon nanoparticles, lithium salt nanocrystals and graphene, wherein the surface of lithium salt nanocrystals is coated with carbon nanoparticles and graphene. The preparation method comprises concentrating and drying a mixed solution, then calcinating the solid. The lithium salt-graphene-containing composite material has excellent electric performance and stability since the problem of low electric performance resulted from carbon coating on the surface of lithium salt or coating imperfection resulted from graphene coating on the surface of lithium salt is effectively solved. For the more uniform and compacted combination between graphene and lithium salt nanocrystals, the graphene will not fall off and the composite material has a high capacity ratio, energy density and conductivity. Furthermore, particle agglomeration and growing up are reduced in the process of calcination.
摘要:
A double-center quaternary ammonium salt ion liquid having the structural formula (I), wherein n=2, 3 or 6, Y− is BF4−, PF6−, (FSO2)2N−, (CF3SO2)2N− or CF3S3−. Also provided is a method for preparing a double-center quaternary ammonium salt ion liquid. The double-center quaternary ammonium salt ion liquid has high stability, and thus an electrolyte containing the double center quaternary ammonium salt ion liquid has a high decomposition voltage.
摘要翻译:具有结构式(I)的双中心季铵盐离子液体,其中n = 2,3或6,Y-是BF 4 - ,PF 6 - ,(FSO 2)2 N - ,(CF 3 SO 2)2 N-或CF 3 S 3 - 。 还提供了制备双中心季铵盐离子液体的方法。 双中心季铵盐离子液体具有高稳定性,因此含有双重中心季铵盐离子液体的电解质具有高的分解电压。
摘要:
A double-center quaternary ammonium salt ion liquid having the structural formula (I), wherein n=2, 3 or 6, Y− is BF4−, PF6−, (FSO2)2N−, (CF3SO2)2N− or CF3S3−. Also provided is a method for preparing a double-center quaternary ammonium salt ion liquid. The double-center quaternary ammonium salt ion liquid has high stability, and thus an electrolyte containing the double center quaternary ammonium salt ion liquid has a high decomposition voltage.
摘要翻译:具有结构式(I)的双中心季铵盐离子液体,其中n = 2,3或6,Y-是BF 4 - ,PF 6 - ,(FSO 2)2 N - ,(CF 3 SO 2)2 N-或CF 3 S 3 - 。 还提供了制备双中心季铵盐离子液体的方法。 双中心季铵盐离子液体具有高稳定性,因此含有双重中心季铵盐离子液体的电解质具有高的分解电压。