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首页> 外文会议>International Symposium on Eco-Materials Processing amp; Design; 20060108-11; Chengdu(CN) >Preparation of Activated Carbon Fibers by Chemical Activation Method with Hydroxides
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Preparation of Activated Carbon Fibers by Chemical Activation Method with Hydroxides

机译：氢氧化物化学活化法制备活性炭纤维

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摘要

Activated carbon fibers were prepared from stabilized PAN-based fibers by chemical activation using hydroxides at different concentrations. The experimental data showed variations in specific surface area, microstructure, pore size distribution, and amounts of iodine adsorbed by the activated carbon fibers. Specific surface area of about 2244m~2/g and iodine adsorption of 1202mg/g were obtained in the KOH 1.5M. However, the use of NaOH in the activation process rather than KOH and using the same time/ temperature profiles resulted in a carbon with a much lower surface area. KOH is a more developed pore structure than NaOH, which means that KOH is a better activation agent in producing ACF than NaOH.
机译：通过使用不同浓度的氢氧化物进行化学活化，由稳定的PAN基纤维制备活性炭纤维。实验数据表明，比表面积，微观结构，孔径分布和被活性炭纤维吸附的碘的量存在差异。在1.5M KOH中得到的比表面积约为2244m 2 / g，碘的吸附量为1202mg / g。但是，在活化过程中使用NaOH而不是KOH并使用相同的时间/温度曲线会导致碳的表面积大大降低。 KOH是比NaOH更发达的孔结构，这意味着KOH在生产ACF方面比NaOH是更好的活化剂。

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