Carbon-coated nickel oxide nano composite material and preparation method and application thereof
A nanocomposite material, nickel oxide technology, applied in chemical instruments and methods, catalyst activation/preparation, nanotechnology for materials and surface science, etc., can solve the problems of high price and low activity, reduce air pollution, The effect of excellent activity and good industrial application prospects
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[0052] The second aspect of the present invention also provides the preparation method of the aforementioned carbon-coated nickel oxide nanocomposite, comprising the following steps:
[0053] The nickel source and the polyvalent organic carboxylic acid are mixed in a solvent to form a homogeneous solution, and the solvent in the homogeneous solution is removed to obtain a precursor; the precursor is pyrolyzed in an inert atmosphere or a reducing atmosphere, and the pyrolyzed product is performing oxygen treatment; preparing a second metal salt solution, mixing the oxygen treated product with the second metal salt solution uniformly and stirring to obtain a solid-liquid mixture; and drying and roasting the solid-liquid mixture to obtain a nanocomposite material.
[0054] Specifically, the precursor is a water-soluble mixture, which refers to a nickel-containing water-soluble mixture obtained by dissolving a nickel source and a polyvalent organic carboxylic acid in a solvent such...
Embodiment 1
[0081] This example is used to illustrate the preparation method of the carbon-coated nickel oxide nanocomposite material of the present invention.
[0082] (1) Weigh 10 g of nickel carbonate and 10 g of citric acid into a beaker containing 100 mL of deionized water, stir at 70° C. to obtain a homogeneous solution, and continue heating and evaporating to dryness to obtain a solid precursor.
[0083] (2) Place the solid precursor obtained in step (1) in a porcelain boat, then place the porcelain boat in the constant temperature zone of the tube furnace, feed in nitrogen gas with a flow rate of 100mL / min, and heat at a rate of 4°C / min. The temperature was raised to 600°C, the temperature was kept constant for 2 hours, then the heating was stopped, and cooled to room temperature under a nitrogen atmosphere to obtain a carbon-coated nickel composite material.
[0084] (3) the product obtained in step (2) is placed in a porcelain boat, then the porcelain boat is placed in the const...
Embodiment 2
[0088] This example is used to illustrate the preparation method of the carbon-coated nickel oxide nanocomposite material of the present invention.
[0089] (1) Weigh 10g of nickel acetate and 10g of citric acid into a beaker containing 100mL of deionized water, stir at 70°C to obtain a homogeneous solution, continue heating and evaporate to dryness, and obtain a solid precursor.
[0090] (2) Place the solid precursor obtained in step (1) in a porcelain boat, then place the porcelain boat in the constant temperature zone of the tube furnace, feed nitrogen gas with a flow rate of 100mL / min, and set the temperature at a rate of 2°C / min. The temperature was raised to 650°C, the temperature was kept constant for 2 hours, then the heating was stopped, and cooled to room temperature under a nitrogen atmosphere to obtain a carbon-coated nickel composite material.
[0091] (3) the product obtained in step (2) is placed in a porcelain boat, then the porcelain boat is placed in the cons...
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Abstract
Description
Claims
Application Information
- IPC
- B01J23/78; B01J37/02; B01J37/08; B01J37/14; B01J37/06; B82Y30/00; B82Y40/00; B01D53/86; B01D53/56
- CPC
- B01J23/78; B01J37/0201; B01J37/082; B01J37/14; B01J37/06; B82Y30/00; B82Y40/00; B01D53/86
- Inventors
- 于鹏; 荣峻峰