Preparation method of Ni<x>Mn<1-x>Co<2>O<4> nano flower with foamed nickel as matrix
A technology of nickel foam and nanoflowers, which is applied in the direction of nanotechnology, nanotechnology, and nanotechnology for materials and surface science, and can solve problems such as the influence of composite materials on electrochemical performance, low uniformity of composite materials, and unfavorable industrial promotion. , to achieve the effect of improving insufficient stability, low equipment requirements, and strong operability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] (1) Soak Ni-foam in 0.4mol / L hydrochloric acid solution and ultrasonically for 20min, wash with deionized water for 3 times, then vacuum-dry at 80°C for 2h to obtain activated nickel foam matrix;
[0030] (2) Weigh KMnO at a molar ratio of 0.5:2 4 and Co(NO 3 ) 2 ·6H 2 O, stirred and mixed, dissolved in 50ml of NaAc-HAc buffer, and finally configured as c(Co 2+ )=0.1mol / L precursor solution;
[0031] (3) Transfer the activated nickel foam matrix obtained in step (1) and the precursor solution obtained in step (2) into a 100ml polytetrafluoroethylene hydrothermal reaction kettle at the same time, react at 120°C for 8h, and cool to room temperature Then take it out, wash it three times with deionized water, and dry it at 80°C for 5 hours to get Ni x mn 1-x The compound salt precursor of Co;
[0032] (4) The composite salt precursor obtained in step (3) was calcined at a constant temperature of 320°C for 4 hours in an air atmosphere, and then cooled to room temperat...
Embodiment 2
[0038] (1) Soak Ni-foam in 0.5mol / L hydrochloric acid solution and ultrasonicate for 20min, wash with deionized water for 3 times, then vacuum dry at 80°C for 2h to obtain activated foamed nickel matrix;
[0039] (2) Weigh KMnO at a molar ratio of 0.75:2 4 and Co(NO 3 ) 2 ·6H 2 O, stirred and mixed, dissolved in 50ml of NaAc-HAc buffer, and finally configured as c(Co 2+ )=0.1mol / L precursor solution;
[0040] (3) The activated nickel foam substrate obtained in step (1) and the precursor solution obtained in step (2) are simultaneously transferred into a 100ml polytetrafluoroethylene hydrothermal reaction kettle, reacted at 130°C for 7.5h, and cooled to Take it out after room temperature, wash it three times with deionized water, and dry it at 80°C for 5 hours to obtain Ni x mn 1-x The compound salt precursor of Co;
[0041] (4) The composite salt precursor obtained in step (3) was calcined at a constant temperature of 320 ° C for 4.5 h in an air atmosphere, and then coo...
Embodiment 3
[0047] (1) Soak Ni-foam in 0.6mol / L hydrochloric acid solution and ultrasonically for 20min, wash with deionized water for 3 times, then vacuum-dry at 80°C for 2h to obtain activated nickel foam matrix;
[0048] (2) Weigh KMnO at a molar ratio of 1:2 4 and Co(NO 3 ) 2 ·6H 2 O, stirred and mixed, dissolved in 50ml of NaAc-HAc buffer, and finally configured as c(Co 2+ )=0.1mol / L precursor solution;
[0049] (3) Transfer the activated nickel foam matrix obtained in step (1) and the precursor solution obtained in step (2) into a 100ml polytetrafluoroethylene hydrothermal reaction kettle at the same time, react at 150°C for 6h, and cool to room temperature Then take it out, wash it three times with deionized water, and dry it at 80°C for 5 hours to get Ni x mn 1-x The compound salt precursor of Co;
[0050] (4) The composite salt precursor obtained in step (3) was calcined at a constant temperature of 320 °C for 5 h in an air atmosphere, and then cooled to room temperature t...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More