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Preparation of nitrogen-doped mesoporous carbon materials from oligoimide precursors

Authors： LIU Yuanyuan1,2, HAYAKAWA Teruaki2, WANG Xiaolin1

Units： 1. Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo 152-8552, Japan

KeyWords： oligoimides; nitrogen-doped mesoporous carbon; high regularity; morphology control

ClassificationCode：O631.1

year,volume(issue):pagination： 2014, 34(5):33-39

Abstract：

Well-ordered nitrogen-dopedmesoporous carbon materials were prepared via a soft-templating method by using block copolymers as the template, oligoimide as the nitrogen source and crosslinked phenolic resin as the carbon source, through successive steps of self-assembly, crosslinking, and heat treatment. FT-IR, SEM, TEM, thermogravimetric analysis and small angle x-ray diffraction were used to characterize the constitution and mesostructures of obtained materials. The results indicated that the block copolymer templates were successfullyremoved at 350 ℃ to generate porous structures, and at a higher temperature of 600 ℃, the matrix consisting of oligoimides and crosslinked phenolic resin will carbonize to form the nitrogen-doped mesoporous carbons with high regularity. Since carbon and nitrogen precursors selectively dissolve in the hydrophilic phase formed by the block copolymer templates and change the hydrophilic/hydrophobic ratios, the morphologies of the newly developed carbon materials can be finely tuned by adjusting the ratios of each component in the system, and numerous morphologies, including sphere, cylinder and lamellar can be obtained.

Funds：

国家高技术研究发展计划(863)项目(批准号：2012AA03A604)

AuthorIntro：

刘圆圆(1989-)，女，福建人，博士研究生，主要研究方向为规整结构新型膜的制备及研究，联系电话：010-62794742，E-mail: liuyuanyuan07@gmail.com **通讯作者：E-mail：xl-wang@tsinghua.edu.cn.

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