文献类型：期刊文献

英文题名：Fabrication of hydrophobic, electrically conductive and flame-resistant carbon aerogels by pyrolysis of regenerated cellulose aerogels

作者：Wan, Caichao[1] Lu, Yun[2] Jiao, Yue[1] Jin, Chunde[3] Sun, Qingfeng[3] Li, Jian[1]

第一作者：Wan, Caichao

通信作者：Lu, Y[1]

机构：[1]Northeast Forestry Univ, Mat Sci & Engn Coll, Harbin 150040, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[3]Zhejiang Agr & Forestry Univ, Sch Engn, Linan 311300, Peoples R China

年份：2015

卷号：118

起止页码：115-118

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20144900281634);Scopus(收录号：2-s2.0-84912535880);WOS:【SCI-EXPANDED(收录号:WOS:000348259900017)】；

基金：We appreciate the financial support of the China Postdoctoral Science Foundation (2013M540263), the National Natural Science Foundation of China (grant no. 31270590), and the Doctoral Candidate Innovation Research Support Program of Science & Technology Review (kjdb2012006).

语种：英文

外文关键词：Carbon; Aerogels; Pyrolysis; Regenerated cellulose; Porous materials

摘要：In this paper, we reported miscellaneous carbon aerogels prepared by pyrolysis of regenerated cellulose aerogels that were fabricated by dissolution in a mild NaOH/PEG solution, freeze thaw treatment, regeneration, and freeze drying. The as-prepared carbon aerogels were subsequently characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), nitrogen adsorption measurements, X-ray diffraction (XRD), Raman spectroscopy, and water contact angle (WCA) tests. The results showed that the carbon aerogels with pore diameters of 1-60 nm maintained interconnected three-dimensional (3D) network after the pyrolysis, and showed type-IV adsorption isotherm. The pyrolysis process leaded to the decomposition of oxygen-containing functional groups, the destruction of cellulose crystalline structure, and the formation of highly disordered amorphous graphite. Moreover, the carbon aerogels also had strong hydrophobicity, electrical conductivity and flame retardance, which held great potential in the fields of waterproof, electronic devices and fireproofing. (C) 2014 Elsevier Ltd. All rights reserved.