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题名: Inorganic salt aided synthesis of monolithic silica with meso/macro hierarchical structure
作者: Zhong, Hua1, 2;  Liu, Jian1;  Wang, Peiyuan1, 2;  Yang, Jie1;  Yang, Qihua1
通讯作者: 杨启华
关键词: Silica monolith ;  Hierarchical macro-mesopore ;  Inorganic salt ;  Carbon monolith
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2009-07-01
DOI: 10.1016/j.micromeso.2009.03.024
卷: 123, 期:1-3, 页:63-70
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 506
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The inorganic salts, such as NaCl, NaNO(3) or Na(2)SO(4), were demonstrated to have great influence on the mesostructure formation of the silica monolith with well-defined macro-mesoporous hierarchical structure synthesized in weak acidic medium (acetic acid aqueous solution) using poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PI 23) as the surfactant. The results of XRD and TEM showed that the ability of the inorganic salts for promoting formation of ordered mesostructure followed the sequence of NaCl > NaNO(3) > Na(2)SO(4). In addition to the mesopore, the existence of well-defined macropore was characterized by SEM and mercury porosimetry. Moreover, it was interesting to mention that the cross-linking degree of the silica monolith was greatly enhanced with the addition of inorganic salts. The formation of carbon monolith with well-defined macropore and mesopore was illustrated by replica of the hierarchical silica monolith. (c) 2009 Elsevier Inc. All rights reserved,
关键词[WOS]: PERFORMANCE LIQUID-CHROMATOGRAPHY ;  HYDROCARBON SURFACTANT MIXTURES ;  SOL-GEL SYSTEM ;  MESOPOROUS SILICA ;  MOLECULAR-SIEVES ;  PHASE-SEPARATION ;  MICROPOROUS MATERIALS ;  ORDERED MESOPORES ;  POLYACRYLIC-ACID ;  CARBON MONOLITHS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000267099000009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101929
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zhong, Hua,Liu, Jian,Wang, Peiyuan,et al. Inorganic salt aided synthesis of monolithic silica with meso/macro hierarchical structure[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2009,123(1-3):63-70.
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