Preparation of highly-ordered mesoporous carbons by organic-organic self-assembly using the reverse amphiphilic triblock copolymer PPO-PEO-PPO with a long hydrophilic chain

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	Preparation of highly-ordered mesoporous carbons by organic-organic self-assembly using the reverse amphiphilic triblock copolymer PPO-PEO-PPO with a long hydrophilic chain
	P. Li; Y. Song; Q. Y. Lin; J. L. Shi; L. Liu; L. L. He; H. Q. Ye; Q. G. Guo
	2012
发表期刊	Microporous and Mesoporous Materials
ISSN	1387-1811
卷号	159 页码:81-86
摘要	A family of highly ordered mesoporous carbons (OMCs) were prepared by the organic-organic self-assembly of a reverse amphiphilic triblock copolymer with a soluble in ethanol, low-molecular-molar phenolic resin. The self-assembly was induced by evaporation. Small angle X-ray scattering, transmission electron microscopy and nitrogen adsorption/desorption isotherms evaluated by the Brunauer-Emmett-Teller method have been used to characterize the OMCs. Phase transitions from a lamellar (L infinity) one dimensional pore system with pore size centered at 6.3 nm to a hexagonal (p6mm) two dimensional pore system with tunable pore size from 3.5-3.9 nm, to a cubic (Fc (3) over bar -m) three dimensional cagelike pore system with a tri-modal pore structure and finally to another disordered cubic mesoporous carbons, are observed by finely tuning the molar ratios of the phenol/formaldehyde/NaOH/template. All the OMCs had high surface area and a uniform pore size. The results show that by increasing the hydrophilicity of the system by changing the molar ratios of reactants, the mesophase can be tailored conveniently. Furthermore, these transitions help us understand the mechanism of the formation of mesophase to produce different OMCs. (C) 2012 Elsevier Inc. All rights reserved.
部门归属	[li, peng; song, yan; shi, jingli; liu, lang; guo, quangui] inst coal chem, key lab carbon mat, taiyuan 030001, peoples r china. [li, peng] chinese acad sci, grad univ, beijing 100049, peoples r china. [lin, qingyun; he, lianlong; ye, hengqing] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;song, y (reprint author), inst coal chem, key lab carbon mat, taiyuan 030001, peoples r china.;yansong1026@126.com; yansong1026@126.com
关键词	Mesostructure Reverse Block Copolymer Carbon Methanol Fuel-cell Nanoporous Carbon Molecular-sieves Phenolic Resin Template Transformation Performance Fabrication Frameworks Storage
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60062
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Li,Y. Song,Q. Y. Lin,et al. Preparation of highly-ordered mesoporous carbons by organic-organic self-assembly using the reverse amphiphilic triblock copolymer PPO-PEO-PPO with a long hydrophilic chain[J]. Microporous and Mesoporous Materials,2012,159:81-86.
APA	P. Li.,Y. Song.,Q. Y. Lin.,J. L. Shi.,L. Liu.,...&Q. G. Guo.(2012).Preparation of highly-ordered mesoporous carbons by organic-organic self-assembly using the reverse amphiphilic triblock copolymer PPO-PEO-PPO with a long hydrophilic chain.Microporous and Mesoporous Materials,159,81-86.
MLA	P. Li,et al."Preparation of highly-ordered mesoporous carbons by organic-organic self-assembly using the reverse amphiphilic triblock copolymer PPO-PEO-PPO with a long hydrophilic chain".Microporous and Mesoporous Materials 159(2012):81-86.