Homogeneous-phase multi-element porous oxide material, preparation method and application thereof

A porous oxide, multi-component technology, applied in the preparation of oxide/hydroxide, chemical instruments and methods, vanadium oxide, etc., can solve the problems of no advantage in utilization, low material density, etc. The effect of the advantages of large-scale industrial production

Active Publication Date: 2015-03-25
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The present invention adopts the inorganic dispersion sol-gel method, that is, the inorganic metal salt solution is used as the precursor, the sol-gel is formed under the action of the dispersant and the gel accelerator, and the composite metal oxide airgel can be obtained by calcining. The density of the material is low, and there is no advantage in energy storage and other fields

Method used

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  • Homogeneous-phase multi-element porous oxide material, preparation method and application thereof
  • Homogeneous-phase multi-element porous oxide material, preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0032] Accurately weigh 0.16 mg of 2-methylimidazole, add it into 100 mL of deionized water, stir until completely dissolved, then add 3 mL of concentrated ammonia water, continue stirring for 10 min, and set aside. Add 0.19883 mg of ferrous chloride to 100 mL of deionized water, stir until completely dissolved, then add the prepared mixed solution of 2-methylimidazole and concentrated ammonia water, stir and react at room temperature for 10 minutes, and obtain nickel-zinc binary Metal-organic framework compound, the compound was suction-filtered, washed three times with deionized water, dried at 80°C for 12h, then heated from room temperature to 450°C at a rate of 2°C / min, and kept at this temperature for 1h, then naturally The temperature is lowered to obtain a multi-component porous oxide material.

Embodiment 2

[0034]Accurately weigh 0.83 mg of terephthalic acid, add it to 100 mL of deionized water, stir until completely dissolved, then add 9 mL of concentrated ammonia water, continue stirring for 20 min, and set aside. Add 0.8 mg of manganese sulfate and 0.786505 mg of vanadium chloride into 100 mL of deionized water, stir until completely dissolved, then add the prepared mixed solution of terephthalic acid and concentrated ammonia water, and stir for 1 min at room temperature to obtain nickel- Zinc binary metal-organic framework compound, the compound is suction-filtered, washed with deionized water five times, dried at 60°C for 2 hours, then heated from room temperature to 200°C at a rate of 0.1°C / min, and kept at this temperature 2h, and then naturally lower the temperature to obtain a multi-component porous oxide material.

Embodiment 3

[0036] Accurately weigh 7.33mg of tetra-pyridinecarboxylic acid (HIN), add it into 100mL of deionized water, stir until completely dissolved, then add 9mL of concentrated ammonia water, continue stirring for 30min, and set aside. Add 3.3mg of zinc acetate and 5.07mg of nickel nitrate into 100mL of deionized water, stir until completely dissolved, then add the prepared mixed solution of tetrakis-pyridinecarboxylic acid (HIN) and concentrated ammonia water, and stir at room temperature for 3 minutes to obtain Nickel-zinc binary metal-organic framework compound, the compound was suction-filtered, washed five times with deionized water, dried at 50°C for 4 hours, and then heated from room temperature to 300°C at a rate of 0.3°C / min, and at this temperature The temperature was kept at a constant temperature for 3 hours, and then the temperature was naturally lowered to obtain a multi-component porous oxide material.

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Abstract

The invention relates to a homogeneous-phase multi-element porous oxide material, a preparation method and application of the homogeneous-phase multi-element porous oxide material. The method comprises the following steps: preparing solutions by metal organic ligands; optionally adding deprotonation agents; adding mixed salts of at least two metals; stirring at a constant temperature and reacting for a certain time to obtain a multielement metal organic frame compound; performing suction filtration, washing and drying; and roasting at a certain temperature and performing ablation on organic components in the metal organic frame to obtain the homogeneous-phase multi-element porous oxide material. The method is simple in process, high in yield, low in cost and free of pollution; the homogeneous-phase multi-element porous oxide material has uniformly-distributed metal elements and is high in specific surface area. The multi-element porous oxide material has wide application prospects in the fields of adsorption, catalysis, sensing, energy storage and the like.

Description

technical field [0001] The invention belongs to the field of electrochemistry and inorganic materials, and in particular relates to a multi-element transition metal oxide material capable of forming a homogeneous compound, a preparation method and an application thereof. Background technique [0002] The application research of transition metal element oxides is one of the frontiers of scientific research at present, and it is widely used in a wide range of technical fields such as catalysis, adsorption, sensing, energy storage and superconductivity. But in general, single oxide materials inevitably have defects in application. To solve this problem, researchers often use doping or compounding methods to improve the performance of oxides. For example, in lithium battery materials, lithium nickelate has High specific capacity, but poor cycle stability. The structure of lithium manganese oxide is stable, excellent cycle performance, but low capacity. At present, the potential ...

Claims

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Application Information

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IPC IPC(8): C01B13/14C01G49/02C01G45/02C01G9/02C01G53/04C01G51/04C01G31/02
CPCC01B13/14C01G9/02C01G31/02C01G45/02C01G49/0018C01G51/04C01G53/04C01P2002/72C01P2004/03C01P2006/16
Inventor 谭强强王鹏飞徐宇兴
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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