改性活性炭及其制备方法和超级电容器

本发明提供一种改性活性炭及其制备方法和超级电容器,涉及活性炭领域。改性活性炭的制备方法,包括:将竹材颗粒与酚醛树脂共混、浸渍﹐然后依次进行固化、炭化和活化。改性活性炭﹐使用所述的改性活性炭的制备方法所制得。超级电容器,其原料包括所述的改性活性炭。本申请提供的改性活性炭的制备方法,采用竹材颗粒作为碳源和模板,使用酚醛树脂改善活性炭的振实密度,然后采用活化工艺,在制备过程中竹材颗粒在酚醛树脂中的有效分散防止酚醛树脂固化及炭化过程中的体积收缩,提高活性炭的比表面积。本申请提供的改性活性炭质量比电容优异,灰分低,比表面积大,振实密度高。使用本申请提供的改性活性炭作为原料制得的超级电容器,性能随之提升。

This invention provides a modified activated carbon, its preparation method, and a supercapacitor, falling within the technical field of activated carbon. The preparation method of the modified activated carbon includes: blending and impregnating bamboo particles with phenolic resin, followed by curing, carbonization and activation in sequence. The modified activated carbon is prepared via the aforementioned preparation method. A supercapacitor uses the aforementioned modified activated carbon as a raw material. The preparation method of the modified activated carbon provided herein uses bamboo particles as both the carbon source and template, and phenolic resin to improve the tap density of the activated carbon. During the preparation process, the effective dispersion of bamboo particles in the phenolic resin prevents volume shrinkage during the curing and carbonization stages of the phenolic resin, thereby increasing the specific surface area of the activated carbon. The modified activated carbon provided by the present application exhibits excellent gravimetric specific capacitance, low ash content, high specific surface area and high tap density. Supercapacitors prepared using the modified activated carbon provided herein as the raw material show improved performance.

搜集汇总

背景与挑战

背景概述

该数据集涉及一种改性活性炭的制备方法，采用竹材颗粒与酚醛树脂共混后经固化、炭化和活化处理，以提高活性炭的比表面积和振实密度，并用于超级电容器的制造。它属于竹材高值化加工关键技术创新研究项目，聚焦于活性炭领域的创新技术应用。