Structural Control of Mesoporous 1,4-Phenylene-silica Using the Mixture of CTAB/SDS
The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS). When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenyle...
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Published in | Chinese journal of chemistry Vol. 29; no. 5; pp. 883 - 887 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.05.2011
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS). When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenylene-silicas changed in a sequence of sphere, hexagonal short rod, worm-like, bent flake and flower-like structure; the pore architecture of them changed from a hexagonal arranged tubular structure to a lamellar one; and the organization of the smallest repeat units within the wall changed from a random structure to a crystalline structure. At the SDS/CTAB molar ratios of 0.3 and 0.5, 1,4-phenylene-silica nanofibers with lamellar mesopores outside and tubular pore channels inside were obtained. The lamellar mesopores should be formed by merging the rod-like micelles during the reaction process. |
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Bibliography: | 31-1547/O6 The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS). When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenylene-silicas changed in a sequence of sphere, hexagonal short rod, worm-like, bent flake and flower-like structure; the pore architecture of them changed from a hexagonal arranged tubular structure to a lamellar one; and the organization of the smallest repeat units within the wall changed from a random structure to a crystalline structure. At the SDS/CTAB molar ratios of 0.3 and 0.5, 1,4-phenylene-silica nanofibers with lamellar mesopores outside and tubular pore channels inside were obtained. The lamellar mesopores should be formed by merging the rod-like micelles during the reaction process. Zhuang Wei, Bi Lifeng, Zhang, Ming, Wang Sibing, Li Yi, Li Baozong, Yang Yonggang( Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China) mesoporous, 1,4-phenylene-silica, surfactants, sol-gel processes, self-assembly istex:DBC919ECA989DC0A75C236ADAEA29BCDA42D57F1 the National Natural Science Foundation of China - No. 20871087 ArticleID:CJOC201190183 the Program of Innovative Research Team of Soochow University, Program for New Century Excellent Talents in University - No. NCET-08-0698 ark:/67375/WNG-B55XP2VC-4 |
ISSN: | 1001-604X 1614-7065 |
DOI: | 10.1002/cjoc.201190183 |