Salt-Induced Phase Separation to Synthesize Ordered Mesoporous Carbon by pH-Controlled Self-Assembly | |
Department | 先进润滑与防护材料研究发展中心 |
Duan YX(段有新)1,2; Pan FP(潘富平)1; Liu Q(刘乔)3; Zhou Y(周妍)1; Liang AM(梁爱民)1; Zhang JY(张俊彦)1; Liang AM(梁爱民); Zhang JY(张俊彦) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Journal of Physical Chemistry C |
ISSN | 1932-7447 |
Volume | 121Issue:2Pages:1243-1248 |
Abstract | Self-assemly of block copolymers (BCPs) and phenolic resin (PR) is an important method to prepare ordered mesoporous polymers (OMPs) and carbon materials (OMCs). In the process, phase separation of the BCP–PR composite is a critical step which is, however, time-consuming in aqueous solution. Here we report, for the first time, a new salt-induced phase separation strategy to achieve this goal. Triblock copolymer F127 and phenol-formaldehyde resin (PF) are used as the template and precursor, respectively, and sodium chloride (NaCl) is applied to induce the coagulation and phase separation of the F127–PF composite which is transformed to be OMC at high temperature. It is found that the maintenance of the ordered mesostructure is highly dependent on the pH of the F127–PF solution under NaCl interference. A hypothetical mechanism is proposed to explain the role of pH in the formation of ordered mesostructure when salt is introduced into the self-assembly system. The effects of pH, salt concentration, and varied salts on the structures and properties of the as-prepared OMCs are investigated in detail. The new salt-induced phase separation strategy can synthesize OMC facilely and can provide a new insight into understanding the process of preparing ordered mesoporous materials by self-assembly more deeply. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1021/acs.jpcc.6b11056 |
Funding Organization | the National Key Basic Research and Development (973) Program of China (Grant No. 2013CB632300);the National Natural Science Foundation of China (Grant No. 51275508) |
Indexed By | SCI |
If | 4.536 |
Language | 英语 |
Funding Project | 纳米润滑研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21296 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Liang AM(梁爱民); Zhang JY(张俊彦) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Ningbo Univ Technol, Sch Mat Sci & Engn, Ningbo 315016, Zhejiang, Peoples R China |
Recommended Citation GB/T 7714 | Duan YX,Pan FP,Liu Q,et al. Salt-Induced Phase Separation to Synthesize Ordered Mesoporous Carbon by pH-Controlled Self-Assembly[J]. Journal of Physical Chemistry C,2017,121(2):1243-1248. |
APA | Duan YX.,Pan FP.,Liu Q.,Zhou Y.,Liang AM.,...&张俊彦.(2017).Salt-Induced Phase Separation to Synthesize Ordered Mesoporous Carbon by pH-Controlled Self-Assembly.Journal of Physical Chemistry C,121(2),1243-1248. |
MLA | Duan YX,et al."Salt-Induced Phase Separation to Synthesize Ordered Mesoporous Carbon by pH-Controlled Self-Assembly".Journal of Physical Chemistry C 121.2(2017):1243-1248. |
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acs.jpcc.6b11056.pdf(6179KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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