Preparation method of energy storage material with bimetallic germanate nanosheets supported on conductive substrate
A technology of metal germanate and conductive substrate, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as lack, achieve good conductivity, high specific surface area, improve electrochemical efficiency effect
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Embodiment 1
[0029] This embodiment includes the following steps:
[0030] The first step: Weigh 2mmol of anhydrous zinc chloride, 1mmol of germanium oxide, and 1mmol of cetyltrimethylammonium bromide, add them to a mixed solvent composed of 30mL deionized water and 10mL ethylene glycol, and ultrasonically Disperse for 10 minutes;
[0031] Step 2: Transfer the dispersed liquid in Step 1 to a 40mL autoclave, and add a cut 2×5cm rectangular nickel foam into the autoclave, and react at 170°C for 6 hours;
[0032] Step 3: Calcinate the product obtained in Step 2 at 450°C for 2 hours in an inert atmosphere furnace, and control the heating rate at 1°C min -1 ; The resulting product is the foam nickel-supported zinc germanate nanosheet composite material.
[0033] The performance test of the foamed nickel supported zinc germanate nanosheet composite structure material obtained in this embodiment is as follows: Figure 1 ~ Figure 3 Shown: figure 1 It is a scanning electron microscope picture o...
Embodiment 2
[0035] This embodiment includes the following steps:
[0036] The first step: Weigh 4mmol of cobalt nitrate, 1mmol of germanium oxide, and 3mmol of cetyltrimethylammonium bromide, add them to a mixed solvent composed of 20mL deionized water and 20mL ethylene glycol, and ultrasonically disperse for 10 minutes ;
[0037] Step 2: Transfer the dispersed liquid in step 1 to a high-pressure reactor with a volume of 45mL, and add a cut 2×5cm rectangular copper foam into the kettle, and react at 180°C for 3 hours;
[0038] Step 3: Calcinate the product obtained in Step 2 at 200°C for 3 hours in an inert atmosphere furnace, and control the heating rate at 2°C min -1 ; The resulting product is the foamed copper-supported cobalt germanate nanosheet composite material.
[0039] The scanning electron microscope picture of the obtained foamed copper-loaded cobalt germanate nanosheet composite material is as follows Figure 7 , and is a lithium-ion battery anode material with high capacit...
Embodiment 3
[0041] This embodiment includes the following steps:
[0042] The first step: Weigh 0.5mmol of calcium acetate, 1mmol of germanium oxide, and 0.5.5mmol of cetyltrimethylammonium bromide, add them to a mixed solvent composed of 20mL deionized water and 5mL ethylene glycol, and ultrasonically Disperse for 5 minutes;
[0043] Step 2: Transfer the dispersed liquid in step 1 to a high-pressure reactor with a volume of 30mL, and add a cut circular carbon cloth or carbon paper with a diameter of 2cm in the kettle, and react at 120°C for 24 hours ;
[0044] Step 3: Calcinate the product obtained in Step 2 at 200°C for 4 hours in an inert atmosphere furnace, and control the heating rate at 3°C min -1 ; The resulting product is carbon cloth or carbon paper loaded calcium germanate nano sheet composite material.
[0045] The obtained carbon cloth or carbon paper loaded calcium germanate nanosheet composite material is a lithium ion battery negative electrode material with high capacit...
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