Nano thin sheet assembled nickel-iron hydroxide multistage microspheres and preparation method thereof
A technology of hydroxide and nano-flakes, applied in nickel compounds, chemical instruments and methods, nanotechnology, etc., can solve the problem of high charge density, and achieve the effects of simple operation, cheap raw materials, and low cost
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[0034] Example 1
[0035] ①In a 100ml flask, add 0.8mmol of ferric nitrate, 2.4mmol of nickel nitrate, and 6.4mmol of urea into 40ml of water, stir vigorously for 10 minutes, then add 15mg of trisodium citrate and 40ml of n-butanol, while adding Continue strong magnetic stirring to prepare a reaction solution of layered double metal hydroxide NiFe-LDHs multistage microspheres assembled by single and double layer nanosheets.
[0036] ②Transfer the reaction solution prepared according to step ① into an autoclave with a 100ml polytetrafluoroethylene liner. After reacting at 120°C for 12 hours, the reaction kettle is naturally cooled to 20°C and washed several times with absolute ethanol. The sample is drained to obtain the layered double metal hydroxide NiFe-LDHs multi-stage microspheres assembled by single and double layer nanosheets.
[0037] The X-ray diffraction pattern of the layered double metal hydroxide NiFe-LDHs multi-stage microspheres assembled by the single and double layer na
Example Embodiment
[0041] Example 2
[0042] ①In a 100ml flask, add 0.8mmol of ferric nitrate, 2.4mmol of nickel nitrate, and 6.4mmol of sodium carbonate to 40ml of water, stir vigorously for 10 minutes, then add 15mg of trisodium citrate and 40ml of n-butanol, add At the same time, strong magnetic stirring is continued to prepare a reaction solution of layered double metal hydroxide NiFe-LDHs nanosheets.
[0043] ②Transfer the reaction solution prepared according to step ① into an autoclave with a 100ml polytetrafluoroethylene liner. After reacting at 120°C for 12 hours, the reaction kettle is naturally cooled to 20°C and washed several times with absolute ethanol. Drain the sample to obtain layered double metal hydroxide NiFe-LDHs nanosheets.
[0044] Image 6 Is the X-ray diffraction pattern of the obtained layered double metal hydroxide NiFe-LDHs nanosheet, Figure 7 It is a scanning electron micrograph of the obtained layered double metal hydroxide NiFe-LDHs nanosheet. It can be seen from the figur
Example Embodiment
[0045] Example 3
[0046] ①In a 100ml flask, add 0.8mmol of ferric nitrate, 2.4mmol of nickel nitrate, and 6.4mmol of sodium acetate to 40ml of water, stir vigorously for 10 minutes, then add 15mg of trisodium citrate and 40ml of n-butanol, add At the same time, strong magnetic stirring is continued to prepare a reaction solution of layered double metal hydroxide NiFe-LDHs nanosheets.
[0047] ②Transfer the reaction solution prepared according to step ① into an autoclave with a 100ml polytetrafluoroethylene liner. After reacting at 120°C for 12 hours, the reaction kettle is naturally cooled to 20°C and washed several times with absolute ethanol. Drain the sample to obtain layered double metal hydroxide NiFe-LDHs nanosheets.
[0048] Figure 8 Is the X-ray diffraction pattern of the obtained layered double metal hydroxide NiFe-LDHs nanosheet, Picture 9 For its scanning electron microscope photos. It can be seen from the figure that the phase of the product of this example is a typica
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