新型炭材料2012，Vol.27Issue(1)：55-60,6.
Fe3O4纳米粒子作为催化剂和致孔剂制备高比表面积块体石墨化炭
Preparation of high surface area, graphitic porous carbon monolith using magnetite nanoparticles as catalyst and porogens
摘要
Abstract
A method to prepare monolithic porous graphitic carbon with high surface area was investigated using nanosize monodispersed magnetite particles ( ~ 10nm) as graphitization catalysts and a porogen template, and an oligomer derived from the polymerization of 2,4-dihydroxybenzoic acid with formaldehyde catalyzed by sodium carbonate as carbon source. The magnetite/oligomer composites were carbonized at 700-900℃ under a nitrogen atmosphere to generate graphitized carbon composites. Finally, monolithic porous graphitic carbon was obtained after HC1 treatment to remove the iron-based particles. Results show that carbonization temperature has a great influence on the graphitization degree and the Brunauer-Emmett-Teller (BET) surface area of the resultant products. The BET surface areas decreased and the graphitization degree of the products increased with carbonization temperature from 700 to 900℃. At a low carbonization temperature of 700℃, the templating effect of the magnetite particles (as porogens) can be clearly observed. Highly graphitic carbon with a high surface area can be obtained at 800℃.关键词
催化剂/致孔剂/块体石墨化炭Key words
Catalysts/ Porogens/ Monolithic graphitic carbon分类
化学化工引用本文复制引用
王光辉,李文翠..Fe3O4纳米粒子作为催化剂和致孔剂制备高比表面积块体石墨化炭[J].新型炭材料,2012,27(1):55-60,6.基金项目
教育部新世纪优秀人才支持计划和大连理工大学精细化工重点实验室开放课题资助. （）
