Preparation of porous carbon derived from mixtures of furfuryl resin and glycol with controlled pore size distribution
Preparation of porous carbon derived from mixtures of furfuryl resin and glycol with controlled pore size distribution
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DOI：
10.1016/s0008-6223(03)00196-9
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发表时间：
2003-01-01
期刊：
影响因子：
10.9
通讯作者：
Zhang, XY
中科院分区：
文献类型：
--
作者：
Wang, YX;Tan, SH;Zhang, XY
本文介绍了用碳前驱体（糠醛树脂和糠醛醇）、成孔剂和溶剂（乙二醇）混合、树脂混合物聚合、树脂与乙二醇混合物热解的方法制备多孔碳及其性能。本文系统地研究了多孔碳的组成和热处理对其性能的影响，重点是了解和控制多孔碳的形态和孔径分布。结果似乎表明，通过改变聚合物体系中各组分的比例，可以获得孔径分布和形貌变化很大的多孔碳。观察到三种类型的形态：具有次级球形孔的互联碳，离散碳颗粒和交联碳网络。得到了孔径分布非常窄的多孔碳，平均孔径控制在5 ~ 0.008 μ m之间。多孔碳的微观结构是富树脂相与富二醇相分离的结果。而不是热解过程的结果。热处理对多孔碳的性能影响不大。(C) 2003 Elsevier Ltd.版权所有。
This paper describes the preparation and properties of porous carbon by a technique which consists of mixing a carbon precursor (furfuryl resin and furfural alcohol), a pore-forming agent and a solvent (glycol), polymerizing the resin mixture, and pyrolyzing the hybrid of resin and glycol. The properties of porous carbons have been systematically investigated as a function of composition and heat treatment, with emphasis on understanding and controlling their morphology and pore size distribution. The results seem to indicate that by varying the ratios of the constituents in the polymer system, porous carbons with a wide variation in pore size distribution and morphology can be obtained. Three types of morphologies were observed: interconnected carbon with secondary spherical pores, discrete carbon particulates, and a crosslinked carbon network. Porous carbons with a very narrow pore size distribution have been obtained and the average pore size was controlled between 5 and 0.008 mum. The microstructure of porous carbon formed as a result of phase separation of resin-rich phase and glycol-rich phase. rather than a result of the pyrolysis process. Heat treatment had little effect on the properties of the porous carbons. (C) 2003 Elsevier Ltd. All rights reserved.