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Preparation method of iron nitride/nitrogen doped and reduced graphite oxide complex

A nitrogen-doped, iron nitride technology, applied in nitrogen-metal/silicon/boron binary compounds, nanotechnology for materials and surface science, nanotechnology, etc., can solve the poor conductivity and electrochemical performance of materials , iron nitride large size, complex procedures and other problems, to achieve the effect of low cost, uniform size, simple process

Inactive Publication Date: 2015-11-11
青岛碳希新材料有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of complex procedures, high cost and low yield in the existing iron nitride / nitrogen-doped reduced graphite oxide composite body, and the size of iron nitride is large, which leads to the conductivity and property of the material. Electrochemical performance is poor, and a preparation method of iron nitride / nitrogen-doped reduced graphite oxide composite is provided

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  • Preparation method of iron nitride/nitrogen doped and reduced graphite oxide complex
  • Preparation method of iron nitride/nitrogen doped and reduced graphite oxide complex
  • Preparation method of iron nitride/nitrogen doped and reduced graphite oxide complex

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specific Embodiment approach 1

[0023] Embodiment 1: This embodiment is a method for preparing an iron nitride / nitrogen-doped reduced graphite oxide composite body, which is specifically completed according to the following steps:

[0024] 1. Configure the graphite oxide / inorganic iron salt mixture: add graphite oxide to deionized water to prepare a graphite oxide / water mixture with a concentration of 3.0mg / mL~5.0mg / mL, and then mix it at a temperature of 25°C and a stirring speed Under the condition of 100r / min~1000r / min, add inorganic iron salt to the graphite oxide / water mixture with a concentration of 3.0mg / mL~5.0mg / mL, stir and mix to obtain the graphite oxide / inorganic iron salt mixture; The graphite oxide described in the step 1 is prepared by the Hummers method; the concentration of the inorganic iron salt in the graphite oxide / inorganic iron salt mixed solution described in the step 1 is 1.0mmol / L~10.0mmol / L;

[0025] 2. Configure the organic amine / alcohol solution: add the organic amine to the alco...

specific Embodiment approach 2

[0033] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the inorganic iron salt described in step 1 is ferric nitrate, ferric chloride or ferrous chloride. Others are the same as the first embodiment.

specific Embodiment approach 3

[0034] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the concentration of inorganic iron salt in the graphite oxide / inorganic iron salt mixed solution described in step one is 1.0mmol / L~5.0mmol / L L. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method of an iron nitride / nitrogen doped and reduced graphite oxide complex, and aims to solve the problems that in the prior art, the preparation process is complicated, the cost is high, the yield is low, and the conductivity and electrochemical performance of complex are bad due to the large size of iron nitride. The preparation method comprise the following steps: (1) preparing a graphite oxide / inorganic iron salt mixed solution; (2) preparing an organic amine / alcohol solution; (3) mixing two solutions to obtain an iron ion containing turbid liquid of organic amine complex and graphite oxide; (4) preparing an iron-based cluster / reduced graphene oxide precursor; (5) burning the precursor to obtain iron nitride / nitrogen doped and reduced graphite oxide complex. The provided preparation method has the advantages that the size of iron nitride is uniform, and the diameter is less than 10 nm. The provided preparation method is mainly used to produce iron nitride / nitrogen doped and reduced graphite oxide complex.

Description

technical field [0001] The invention relates to a preparation method of iron nitride and nitrogen-doped reduced graphite oxide composite material. Background technique [0002] Transition metals have a variety of valence states, which make them have good application prospects in the fields of catalysis, electronics, and magnetism. Reducing the size of transition metal compounds can not only maintain the quantum characteristics of nano-units, but also expose more active sites due to the large specific surface area and exhibit better physical and chemical properties. For example, small-sized noble metal nanoparticles and their alloys, such as Au and Pt nanoparticles, have high catalytic activity and have been widely used in the preparation of electronic sensing devices; small-sized transition metal compounds, such as MnO 2 Nanoparticles, which have high pseudocapacitance, are used in active materials for battery capacitors; rare earth luminescent nanomaterials smaller than 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/06C01B31/04B82Y30/00
Inventor 任志宇孔令俊刘博文杜世超付宏刚
Owner 青岛碳希新材料有限公司
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