Hollow manganese-doped cobalt nickel oxide coated nitrogen-doped carbon nanocomposites and preparation method thereof
A nanocomposite material, nitrogen-doped carbon technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of low durability, high cost, unfavorable large-scale commercial application, etc., Achieve the effect of uniform structure and morphology, avoid agglomeration, simple and efficient modification method
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Embodiment 1
[0047] A nitrogen-doped carbon nano-composite material coated with hollow manganese-doped cobalt-nickel oxide, comprising a hollow nitrogen-doped carbon material, the hollow nitrogen-doped carbon material being coated with manganese-doped cobalt-nickel oxide. The hollow nitrogen-doped carbon material has a hollow polyhedral structure.
[0048] Such as figure 1 As shown, the preparation method of the nitrogen-doped carbon nanocomposite coated with hollow manganese-doped cobalt-nickel oxide is as follows:
[0049] Step 1: Synthesis of hollow nitrogen-doped carbon:
[0050] A) A layer of polyaniline is coated on the surface of ZIF-67 by solution polymerization to obtain ZIF-67@polyaniline composite material: ultrasonically disperse ZIF-67 powder in 100mL of water, and ultrasonically treat it for 20min to obtain a dispersion, ZIF The concentration of -67 was 1 mg / mL. Then 20 μL of aniline (Sigma-Aldrich) monomer was added into the above dispersion liquid to make it uniformly di...
Embodiment 2
[0061] Similar to the nitrogen-doped carbon nanocomposite material coated with hollow manganese-doped cobalt-nickel oxide in Example 1, the difference is that the amount of manganese nitrate added in Example 1 is reduced to 6×10 -5 mol, the obtained product is labeled as hollow manganese-doped cobalt-nickel oxide-coated nitrogen-doped carbon nanocomposite-1.
Embodiment 3
[0063] Similar to the nitrogen-doped carbon nanocomposite material coated with hollow manganese-doped cobalt-nickel oxide in Example 1, the difference is that the amount of manganese nitrate added in Example 1 is increased to 1×10 -4 mol, the obtained product is labeled as hollow manganese-doped cobalt-nickel oxide-coated nitrogen-doped carbon nanocomposite-2.
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