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NiCo spinel catalyst material with nano structure as well as preparation method and application of NiCo spinel catalyst material

A nanostructure and spinel technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of catalytic cracking of lignin with long reaction time and non-precious metal Low catalyst efficiency, cumbersome synthesis steps, etc., to achieve the effect of compact structure, multiple active sites, and simple synthesis process

Pending Publication Date: 2021-11-16
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the low efficiency of non-precious metal catalysts in the prior art, the synthesis steps are cumbersome, the reaction time of catalytic cracking lignin is long, the H 2 Shortcomings and deficiencies such as high pressure and high reaction temperature, the primary purpose of the present invention is to provide a kind of preparation method of the NiCo spinel catalyst material of nanostructure; The precursor of the catalyst material, and then the obtained precursor is calcined in air to obtain the product

Method used

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  • NiCo spinel catalyst material with nano structure as well as preparation method and application of NiCo spinel catalyst material
  • NiCo spinel catalyst material with nano structure as well as preparation method and application of NiCo spinel catalyst material
  • NiCo spinel catalyst material with nano structure as well as preparation method and application of NiCo spinel catalyst material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Weigh 0.2910g Ni(NO 3 ) 3 ·6H 2 O, 0.5820g Co(NO 3 ) 3 ·6H 2 O, 0.4920 g anhydrous CH 3 Dissolve COONa in 30mL ethylene glycol, stir vigorously for 30min, transfer the solution to a 50ml polytetrafluoroethylene reactor, put it in an oven and heat it for 16h at 200°C;

[0031] (2) Take out the reacted product, filter out the precipitate, wash with deionized water and absolute ethanol respectively, and centrifuge 5 times to obtain the precipitate; heat the precipitate in an oven for 12 hours at 80°C, and collect to obtain a purple color product;

[0032] (3) Put the purple product into a muffle furnace for calcination, the calcination time is 2h, the calcination temperature is 350°C, and the heating rate during the calcination process is 1°C / min; after the temperature is cooled to room temperature, the product is collected to obtain the present invention Nanostructured NiCo spinel catalyst material.

[0033] see figure 1, the X-ray powder diffraction analysis...

Embodiment 2

[0036] (1) Weigh 0.0291g Ni(NO 3 ) 2 ·6H 2 O, 0.8439g Co(NO 3 ) 2 ·6H 2 O, 0.492 g anhydrous CH 3 Dissolve COONa in 30mL ethylene glycol, stir vigorously for 30min, transfer the solution to a 50ml polytetrafluoroethylene reactor, put it in an oven and heat it for 16h at 200°C;

[0037] (2) Take out the reacted product, filter out the precipitate, wash with deionized water and absolute ethanol respectively, and centrifuge 5 times to obtain the precipitate; heat the precipitate in an oven for 12 hours at 80°C, and collect to obtain a purple color product;

[0038] (3) Put the purple product into a muffle furnace for calcination, the calcination time is 2h, the calcination temperature is 350°C, and the heating rate during the calcination process is 1°C / min; after the temperature is cooled to room temperature, the product is collected to obtain the present invention Nanostructured NiCo spinel catalyst material.

[0039] The nanostructured NiCo spinel catalyst material prep...

Embodiment 3

[0041] (1) Weigh 0.0582g Ni(NO 3 ) 3 ·6H 2 O, 0.8148g Co(NO 3 ) 3 ·6H 2 O, 0.492 g anhydrous CH 3 Dissolve COONa in 30mL ethylene glycol, stir vigorously for 30min, transfer the solution to a 50ml polytetrafluoroethylene reactor, put it in an oven and heat it for 16h at 200°C;

[0042] (2) Take out the reacted product, filter out the precipitate, wash with deionized water and absolute ethanol respectively, and centrifuge 5 times to obtain the precipitate; heat the precipitate in an oven for 12 hours at 80°C, and collect to obtain a purple color product;

[0043] (3) Put the purple product into a muffle furnace for calcination, the calcination time is 2h, the calcination temperature is 350°C, and the heating rate during the calcination process is 1°C / min; after the temperature is cooled to room temperature, the product is collected to obtain the present invention Nanostructured NiCo spinel catalyst material.

[0044] The nanostructured NiCo spinel catalyst material prep...

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Abstract

The invention belongs to the technical field of catalytic materials, and discloses a NiCo spinel catalyst material with a nano structure as well as a preparation method and application of the NiCo spinel catalyst material. The preparation method comprises the following steps: dissolving nickel nitrate, cobalt nitrate and anhydrous sodium acetate in ethylene glycol, and violently and uniformly stirring; transferring the uniform solution into a polytetrafluoroethylene reaction kettle, reacting at the environment temperature of 20-220 DEG C for 1-240 hours, washing and centrifuging a reaction product, and drying an obtained purple precipitate; and calcining a dried black precipitate in a muffle furnace to obtain the NiCo spinel catalyst material with the nano structure. The method is cheap and easy to obtain, simple in equipment, simple and feasible in preparation process and suitable for industrial production, the obtained catalyst material is high in aromatic selectivity and better in catalytic performance when being used for catalytic cracking of lignin into aromatic monomers, and a major breakthrough is brought by catalytic cracking of lignin into aromatic monomers.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials, and in particular relates to a nanostructured NiCo spinel catalyst material and a preparation method and application thereof. Background technique [0002] Due to the continued increase in the world population, current and future world energy needs are increasing dramatically. Despite this challenge, the world's primary energy sources (fossil fuels) are 2 Emissions suffer from severe negative setbacks due to lack of sustainability (non-renewability) and environmental concerns. The world's excessive demand for energy and the proposing of a series of environmental regulations on the utilization of fossil fuels have aroused many research interests to explore sustainable energy alternatives to meet the growing demand. Lignocellulosic biomass is an important renewable energy source. The inherent advantage of lignocellulosic biomass-derived fuels is that they are highly carbon-neutral, an...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J35/02C07C41/01C07C43/23
CPCB01J23/755B01J23/005C07C41/01B01J35/40C07C43/23
Inventor 秦延林漆毅郑彦钦沙欣钰林绪亮邱学青曾茂株徐少杰熊灵樱子
Owner GUANGDONG UNIV OF TECH
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