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Preparation method and application of foam nickel loaded MnCo2O4.5/MXene composite nano material

A composite nanomaterial and nanomaterial technology, which is applied in the field of preparation of foamed nickel-supported MnCo2O4.5/MXene composite nanomaterials, can solve the problems of low conductivity, dissociation, and unsatisfactory, achieve high conductivity, simple operation method, The effect of excellent electrical conductivity

Active Publication Date: 2021-01-15
ZHENGZHOU UNIV
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Problems solved by technology

However, it is not ideal for practical applications due to low conductivity and free active sites

Method used

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  • Preparation method and application of foam nickel loaded MnCo2O4.5/MXene composite nano material
  • Preparation method and application of foam nickel loaded MnCo2O4.5/MXene composite nano material
  • Preparation method and application of foam nickel loaded MnCo2O4.5/MXene composite nano material

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Embodiment 1

[0039] The foam nickel of this embodiment carries MnCo 2 o 4.5 The preparation method of / MXene composite nano-electrode material comprises the steps:

[0040] Step 1. MnCo 2 o 4.5 Synthesis of nanomaterials: Before sample preparation, the cleaned nickel foam (1×4 cm 2 )stand-by. 0.33 mmol Mn(NO 3 ) 2 4H 2 O, 0.66 mmol Co(NO 3 ) 2 ·6H 2 O, 4 mmol urea, 0.13 mmol CTAB and 1.66 mmol NH 4 F was dissolved in 30 mL deionized water. Stir for 30 minutes to form a homogeneous solution. The solution was then transferred together with the nickel foam to be used into a 50 mL autoclave and heated at 120 °C for 12 h. After the reaction was completed, the sample was taken out and washed repeatedly with deionized water and ethanol several times to remove excess products and impurities, and then the sample was placed in a vacuum drying oven for vacuum drying. The samples were dried at 70°C for 12 hours. Finally, calcined at 350 °C for 2 hours to obtain MnCo 2 o 4.5 nanomateria...

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Abstract

The invention provides a preparation method of a foam nickel-loaded MnCo2O4.5 / MXene composite nano material. The methodcomprises the following steps of synthesizing a sea urchin-like MnCo2O4.5 nano material on foam nickel by using a traditional hydrothermal method, designing a MnCo2O4.5CTAB + electrode material with cations on the surface by using hexadecyl trimethyl ammonium bromide, and modifying MXene by electrostatic self-assembly to obtain the composite nano material. The MnCo2O4.5 / MXene composite electrode material is obtained. The preparation method is simple in process, the MXene withthe lamellar structure is self-assembled on the sea urchin-shaped MnCo2O4.5 nano material, the specific surface area of the material is greatly increased, and transmission and exchange of ions in theelectrochemical reaction process are better facilitated. The electrode material is good in conductivity, and the unique lamellar sheet structure can bring considerable specific capacitance.

Description

technical field [0001] The invention relates to the field of supercapacitors, in particular to a foam nickel loaded MnCo 2 o 4.5 / MXene composite nanomaterials preparation method and the application of the composite nanomaterials in supercapacitors. Background technique [0002] Energy issues have always been related to the survival and development of human beings. Especially since the end of the 20th century, human beings are facing serious environmental crises and various resource crises. With the rapid growth of population and rapid economic development, the demand for resources and environment in various countries has exceeded the supply capacity of the ecosystem. In order to overcome the demand for modern emerging energy sources, several technologies for generating electric energy from renewable resources (such as solar energy, wind energy, hydroelectric power, fuel cells, etc.) have been gradually implemented. However, due to the discontinuous generation of a lot of...

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Application Information

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IPC IPC(8): H01G11/86H01G11/30H01G11/26H01G11/24
CPCH01G11/86H01G11/30H01G11/26H01G11/24
Inventor 徐洁郭佳慧张迎九张莹王振威
Owner ZHENGZHOU UNIV
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