Hollow carbon sphere preparing method
A carbon sphere and hollow technology, applied in the field of preparing nanometer hollow carbon spheres
Active Publication Date: 2015-01-28
CHANGZHOU XIAOGUO INFORMATION SERVICES
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[0005] Chinese patent CN 101224883A discloses that anhydrous ethanol is used as carbon source, metal zinc is used as reducing agent and metal solvent, and the nominal diameter is about 400nm prepared by hydrothermal method Hollow carbon spheres, this method has short reaction time and high powder purity, but requires high temperature and high pressure to react, and the cost is high
[0006] In summary, the existing preparation methods mainly have the following disadvantages: one, the synthesis process steps are complicated, the conditions are harsh, and the cost is high; two, the prior art The monodispersity of the synthesized hollow carbon spheres is not good, and the size of the carbon spheres is uncontrollable, which limits the application of hollow carbon spheres as drug carriers in the field of medicine
3. The purity of the synthesized hollow carbon spheres is not high, the template is not easy to remove, and it is easy to cause the hollow carbon spheres to collapse and break when the template is removed.
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Abstract
The invention discloses a hollow carbon sphere preparing method, and belongs to the technical field of preparing methods of inorganic nonmetal materials. An oxygen-containing organic compound is adopted as a carbon source. A finished product is prepared by adding the oxygen-containing organic compound, a carburizer and a surfactant into a reactor, uniformly mixing by stirring to form reverse microemulsion, heating to 70-200 DEG C to react the compounds for 24-96 h, stopping heating, filtering, washing and drying. The method has advantages of high powder purity, low energy consumption, good monodispersity, good solubility, good chemical stability, easy controllable preparation, large-scale production, and the like.
Description
technical field [0001] The invention relates to a technology for preparing nanometer hollow carbon spheres, and belongs to the technical field of preparation methods of inorganic non-metallic materials. Background technique [0002] As a special carbon material, hollow carbon spheres have high chemical stability, low density, good high temperature heat resistance and biocompatibility, and can be used for catalyst carriers, electrode materials, supercapacitors, hydrogen storage materials, Drug delivery devices and templates for preparing other hollow materials are mainly used in the fields of materials science, medicine, pharmacy and coating industry. [0003] At present, the methods for preparing hollow carbon spheres mainly include: high-temperature pyrolysis of organic matter, vapor deposition, laser distillation, arc discharge, template method, etc. [0004] Rui L et al. ( Angew. Chem. Int. Ed. 2011, 50, 6799-6802) Using dopamine as the carbon source and silica sphere...
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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 姜兴茂闵建中李亚情梁帅蔡云亮付鑫陈震
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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