Coral-like strip-shaped porous carbon as well as preparation method and application thereof
The invention provides a preparation method of coral-like strip-shaped porous carbon, which comprises the following steps: mixing coal pitch and a template activator, and calcining at high temperature to obtain the coral-like strip-shaped porous carbon. The invention also provides the porous carbon....
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a preparation method of coral-like strip-shaped porous carbon, which comprises the following steps: mixing coal pitch and a template activator, and calcining at high temperature to obtain the coral-like strip-shaped porous carbon. The invention also provides the porous carbon. The invention further provides application of the coral-like strip-shaped porous carbon. The raw material is hard coal pitch which is a byproduct in the coal hot working process, and the ultrahigh carbon content enables the prepared carbon-based material to have higher carbon yield, so that the carbon-based material is an ideal carbon precursor capable of realizing large-scale application; meanwhile, the coral-like strip-shaped porous carbon material is stable in structure and high in defect degree, so that higher lithium storage specific capacity and faster lithium storage reaction kinetics are shown, the energy density of a commercial lithium ion battery/capacitor can be greatly improved, and therefore, the serv |
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