One-step synthesis method for hollow carbon case

A technology of hollow and carbon spheres, which is applied in the field of one-step synthesis of hollow carbon spheres, can solve the problems of complex post-processing procedures, uneven particle size, and impurities in materials, and achieve uniform and controllable particle size, high technical added value, and high power. effect of density
CN101314467BInactive Publication Date: 2010-12-08DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2010-12-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for synthesizing a micro-nanometer level hollow polymer ball, a carbon ball and a graphitized ball by one step. The method comprises the following steps that: hydroxybenzene and aldehyde are used as raw materials; lysine is used as a catalyst; fatty alcohol is used as a solvent; a polymer hollow ball with an even dimension can be produced by polymerization at a temperature of 80 DEG C; and the polymer hollow ball is further charred to produce a hollow carbon ball. If Fe<3+> is introduced into the polymer hollow ball, the polymer hollow ball is charred to produce a graphitized hollow ball. Through changing a molar ratio of the hydroxybenzene and aldehyde, the catalyst amount and the type of the solvent, the hollow carbon ball with a grain diameter of between 0.6 and 2 mu m can be produced. The micro-nanometer level hollow carbon ball has an even and controllable grain diameter, high purity, smooth surface, stable performance and high technical added value, is suitable for a load type magnetic separation catalyst, an absorption separating agent of pigment and organic molecule and a separating agent of protein and salt and is used as an electrode material of a super capacitor with high power density and high energy density.
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Description

technical field

[0001] The present invention relates to the fields of adsorption, separation, and catalysis new materials, electric adsorption devices, capacitors, and electrode materials for fuel cells, and also belongs to the technical field of preparing micro-nano-level hollow carbon (graphitization) spheres by phenolic polycondensation, especially the one-step synthesis of hollow carbon (graphitization) spheres. Charcoal method. Background technique

[0002] Nanoparticles have distinct characteristics from bulk materials and exhibit unique properties in many applications. However, sometimes due to the single particle structure or composition, it cannot meet the requirements of complex applications. Constructing core-shell structure particles or hollow microspheres can be applied in fields such as lightweight fillers, low dielectric constant materials, controllable transport and release, disease diagnosis, biomass separation, and nano-micro containers. Core-shell nanopa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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