Thermal conversion of alkaline lignin and its structured derivatives to porous carbonized materials

被引：80

作者：

Kijima, Masashi ^{[1
]}

Hirukawa, Takaharu ^{[1
]}

Hanawa, Fuminori ^{[1
]}

Hata, Toshimitsu ^{[2
]}

机构：

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Kyoto Univ, Res Inst Sustainable Humanosphere, Kyoto 6110011, Japan

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 10期

关键词：

Lignin; Pyrolysis; Porous carbon; Carbonization; PORE-SIZE DISTRIBUTION; ACTIVATED CARBON; SURFACE-AREA; CONJUGATED POLYMERS; KRAFT LIGNIN; ELECTRODE; FIBERS; FILMS;

D O I：

10.1016/j.biortech.2011.03.023

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Alkaline lignin was thermally converted to microporous carbon in ca. 50% yield by heating up from room temperature to 900 degrees C without activation process under flowing of an argon gas. The carbonized material prepared by heating up conditions of 1 degrees C min(-1) showed 530 m(2)/g of the Brunauer-Emmett-Teller (BET) specific surface area, which increased to 740 m(2)/g after washing with water. Furthermore, alkaline lignin derivatives were structured as micron scale particles by micelle formation and polymer gelation techniques. Carbonization of the structured lignins could afford high porous materials having BET surface areas above 1000 m(2)/g without surface activation processes. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6279 / 6285

页数：7

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