Molybdenum sulfide carbon nanosphere carbon nanofiber composite electrode material and preparation method thereof
A carbon nanofiber and carbon nanosphere technology, applied in the field of materials, can solve the problem of low discharge capacity, achieve the effect of simplifying the installation process, increasing the content and loading capacity
Active Publication Date: 2020-02-28
HANGZHOU DIANZI UNIV
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Problems solved by technology
Different materials have their own advantages and disadvantages, such as porous carbon materials have a large specific surface area and high cycle life, but their discharge capacity is low
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[0031] In order to better illustrate the process and solutions of the present invention, the following inventions will be further described in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] see figure 1 , the present invention proposes a method for preparing a molybdenum sulfide / carbon nanosphere / carbon nanofiber composite electrode material. The electrode material is prepared based on bacterial cellulose hydrogel. High molecular polymer, it has ultra-fine network structure, high water absorption and water retention performance, high biocompatibility, adaptability and good biodegradability.
[0033] Specifically include the following steps:
[0034] Wherein, said step S1 further includes the following steps:
[0035] S10: repeatedly rinsing the bacterial cellulose hydrogel in deionized water to remove impurities and remove the wat...
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Abstract
The invention discloses a molybdenum sulfide carbon nanosphere carbon nanofiber composite electrode material and a preparation method thereof. The preparation method comprises: S1, preparing a sodiummolybdate / thiourea / glucose / bacterial cellulose hydrogel composite material; and S2, converting the sodium molybdate / thiourea in the sodium molybdate / thiourea / glucose / bacterial cellulose hydrogel composite material into molybdenum disulfide, converting the glucose into carbon nanospheres, and converting the bacterial cellulose into carbon nanofibers so as to be used as a supercapacitor electrode material. According to the invention, by adopting the technical scheme, a carbon nanofiber net structure can be constructed, the molybdenum disulfide in the structure grows along the carbon nanofibers,and compared with a molybdenum disulfide / carbon nanofiber structure, the added glucose can be converted into carbon nanospheres, so that the electronic conductivity in the electrode is improved, and the transmission efficiency of electrons in the electrode is improved; and the technical scheme can provide a novel electrode material preparation method.
Description
technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a molybdenum sulfide carbon nanosphere carbon nanofiber composite electrode material and a preparation method thereof. Background technique [0002] Due to the advantages of ultra-high power density, long cycle life and cycle stability, low cost, and good safety, supercapacitors are green chemical energy sources that have attracted much attention in recent years. They can be used as power sources and demonstrate their excellent performance. electrochemical performance. Electrode materials are the key factors determining the performance of supercapacitors, among which porous carbonaceous materials are the most widely reported, mainly including: porous carbon materials, activated carbon fibers, carbon aerosols, and carbon nanotubes. Different materials have their own advantages and disadvantages. For example, porous carbon materials have a large specific surface area...
Claims
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Login to View More IPC IPC(8): C01G39/06C01B32/15H01G11/24H01G11/30H01G11/36H01G11/34H01G11/44
CPCC01G39/06C01B32/15H01G11/24H01G11/30H01G11/36H01G11/34H01G11/44Y02E60/13
Inventor 李仕琦王育天董志华程知群
Owner HANGZHOU DIANZI UNIV