Fabrication of activated carbons with well-defined macropores derived from sulfonated poly(divinylbenzene) networks
Fabrication of activated carbons with well-defined macropores derived from sulfonated poly(divinylbenzene) networks
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DOI：
10.1016/j.carbon.2010.01.019
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发表时间：
2010-05
期刊：
影响因子：
10.9
通讯作者：
George Hasegawa;K. Kanamori;K. Nakanishi;T. Hanada
中科院分区：
文献类型：
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作者：
George Hasegawa;K. Kanamori;K. Nakanishi;T. Hanada
具有良好限定的大孔的聚（二乙烯基苯）（PDVB）整料，其已被磺化和磺化以获得大孔碳整料。原始的大孔PDVB网络已经通过伴随着调幅分解的活性自由基聚合合成。磺化可防止聚合物网络在惰性气氛中通过热处理进行碳化期间发生大的收缩和重量损失。在使用浓H2SO 4在120°C下磺化的PDVB凝胶的情况下，原始骨架中的中孔以及大孔在碳化后保留。随后通过CO2活化所获得的碳整料，这产生活性炭。所得活性炭的比表面积高达2360 m2 g-1。
Poly(divinylbenzene) (PDVB) monoliths with well-defined macropores that have been sulfonated and carbonized to obtain macroporous carbon monoliths. The original macroporous PDVB networks have been synthesized by living radical polymerization accompanied by spinodal decomposition. Sulfonation prevents polymer networks from large shrinkage and weight loss during carbonization by heat-treatment in an inert atmosphere. In the case of PDVB gels sulfonated at 120°C using conc. H2SO4, mesopores in the original skeletons as well as macropores are retained after carbonization. The obtained carbon monoliths are subsequently activated by CO2, which resulted in activated carbons. The specific surface area of the obtained activated carbons reaches up to 2360m2g−1.