Porous carbon material and preparation method thereof

The invention provides a porous carbon material and a preparation method thereof. According to the preparation method, a biomass cellulose material cotton is adopted as a precursor, and acid heat treatment, neutralization impregnation, heat treatment and post-treatment are performed so as to prepare...

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Bibliographic Details
Main Authors YANG JIANHONG, JIN XINKAI, GAO HONGQUAN, ZHANG DONG, XU GUIJIANG, SUN YONGLING, ZHOU HAITAO, WU JIANCHUN, LIU CHAO
Format Patent
LanguageChinese
English
Published 09.07.2019
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The invention provides a porous carbon material and a preparation method thereof. According to the preparation method, a biomass cellulose material cotton is adopted as a precursor, and acid heat treatment, neutralization impregnation, heat treatment and post-treatment are performed so as to prepare the N,P-doped porous carbon material. Raw materials have the characteristics of rich sources, highcontent of carbon and acid absorption and swelling, a rich pore-channel structure is formed easily, and the carbon-based material with a stable structure, excellent performance and multiple purposes is prepared; the prepared porous carbon material is doped with N and P, and has a BET specific surface area of 2000 m /g and a total pore volume of 1-3 cm .g<-1>, wherein the mesoporous pore volumeaccounts for 40-90% of the total pore volume, and the average pore diameter is 1.8-6 nm; the content of the P element is 0.3-5%, and the content of the N element is 0.5-5%; and meanwhile, the material also has a certain degree of
Bibliography:Application Number: CN201910341450