Facile synthesis and characterization of novel mesoporous and mesorelief oxides with gyroidal structures. Tian, B., Liu, X., Solovyov, L., Liu, Z, Yang, H., Zhang, Z., Xie, S., Zhang, F., Tu, B, Yu, C., Terasaki, O, & Zhao, D. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 126(3):865-875, JAN 28, 2004. doi abstract bibtex In this paper, we bring forward an effective strategy, solvothermal postsynthesis, to prepare ordered mesoporous silica materials with highly branched channels. Structural characterizations indicate that the titled mesoporous materials basically have the cubic double gyroidal (space group la-3d) structure with small fraction of distortions. The mesopore sizes and surface areas can be up to 8.8 nm and 540 m(2)/g, respectively, when microwave digestion is employed to remove the organic templates. A phase transition model is proposed, and possible explanations for the successful phase transition are elucidated. The results show that the flexible inorganic framework, high content of organic matrix, and nonpenetration of poly(ethylene oxide) segments may facilitate the structural evolution. This new synthetic strategy can also be extended to the preparation of other double gyroidal silica-based mesoporous materials, such as metal and nonmetal ions doped silica and organo-functionalized silica materials. The prepared 3D mesoporous silica can be further utilized to fabricate various ordered crystalline gyroidal metal oxide ``negatives''. The mesorelief ``negatives'' (Co3O4 and In2O3 are detailed here) prepared by impregnation and thermolysis procedures exhibit undisplaced, displaced, and uncoupled enantiomeric gyroidal subframeworks. It has been found that the amount of metal oxide precursors (hydrated metal nitrates) greatly influence the (sub)framework structure and single crystallinity of the mesorelief metal oxide particles. The single crystalline gyroidal metal oxides are ordered both at mesoscale and atomic scale. However, these orders are not commensurate with each other.
@article{ ISI:000188318300037,
Author = {Tian, BZ and Liu, XY and Solovyov, LA and Liu, Z and Yang, HF and Zhang,
ZD and Xie, SH and Zhang, FQ and Tu, B and Yu, CZ and Terasaki, O and
Zhao, DY},
Title = {{Facile synthesis and characterization of novel mesoporous and mesorelief
oxides with gyroidal structures}},
Journal = {{JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}},
Year = {{2004}},
Volume = {{126}},
Number = {{3}},
Pages = {{865-875}},
Month = {{JAN 28}},
Abstract = {{In this paper, we bring forward an effective strategy, solvothermal
postsynthesis, to prepare ordered mesoporous silica materials with
highly branched channels. Structural characterizations indicate that the
titled mesoporous materials basically have the cubic double gyroidal
(space group la-3d) structure with small fraction of distortions. The
mesopore sizes and surface areas can be up to 8.8 nm and 540 m(2)/g,
respectively, when microwave digestion is employed to remove the organic
templates. A phase transition model is proposed, and possible
explanations for the successful phase transition are elucidated. The
results show that the flexible inorganic framework, high content of
organic matrix, and nonpenetration of poly(ethylene oxide) segments may
facilitate the structural evolution. This new synthetic strategy can
also be extended to the preparation of other double gyroidal
silica-based mesoporous materials, such as metal and nonmetal ions doped
silica and organo-functionalized silica materials. The prepared 3D
mesoporous silica can be further utilized to fabricate various ordered
crystalline gyroidal metal oxide ``negatives{''}. The mesorelief
``negatives{''} (Co3O4 and In2O3 are detailed here) prepared by
impregnation and thermolysis procedures exhibit undisplaced, displaced,
and uncoupled enantiomeric gyroidal subframeworks. It has been found
that the amount of metal oxide precursors (hydrated metal nitrates)
greatly influence the (sub)framework structure and single crystallinity
of the mesorelief metal oxide particles. The single crystalline gyroidal
metal oxides are ordered both at mesoscale and atomic scale. However,
these orders are not commensurate with each other.}},
DOI = {{10.1021/ja037877t}},
ISSN = {{0002-7863}},
EISSN = {{1520-5126}},
ResearcherID-Numbers = {{, 赵东元/E-5796-2010
Solovyov, Leonid A/B-7246-2008
Yu, Chengzhong/I-8663-2012
Liu, Zheng/E-6119-2018
Terasaki, Osamu/Y-1137-2018}},
ORCID-Numbers = {{, 赵东元/0000-0002-1642-2510
Solovyov, Leonid A/0000-0002-3905-3252
Yu, Chengzhong/0000-0003-3707-0785
Liu, Zheng/0000-0001-9095-7647
Terasaki, Osamu/0000-0001-5803-0817}},
Unique-ID = {{ISI:000188318300037}},
}
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Structural characterizations indicate that the titled mesoporous materials basically have the cubic double gyroidal (space group la-3d) structure with small fraction of distortions. The mesopore sizes and surface areas can be up to 8.8 nm and 540 m(2)/g, respectively, when microwave digestion is employed to remove the organic templates. A phase transition model is proposed, and possible explanations for the successful phase transition are elucidated. The results show that the flexible inorganic framework, high content of organic matrix, and nonpenetration of poly(ethylene oxide) segments may facilitate the structural evolution. This new synthetic strategy can also be extended to the preparation of other double gyroidal silica-based mesoporous materials, such as metal and nonmetal ions doped silica and organo-functionalized silica materials. The prepared 3D mesoporous silica can be further utilized to fabricate various ordered crystalline gyroidal metal oxide ``negatives''. The mesorelief ``negatives'' (Co3O4 and In2O3 are detailed here) prepared by impregnation and thermolysis procedures exhibit undisplaced, displaced, and uncoupled enantiomeric gyroidal subframeworks. It has been found that the amount of metal oxide precursors (hydrated metal nitrates) greatly influence the (sub)framework structure and single crystallinity of the mesorelief metal oxide particles. The single crystalline gyroidal metal oxides are ordered both at mesoscale and atomic scale. However, these orders are not commensurate with each other.","doi":"10.1021/ja037877t","issn":"0002-7863","eissn":"1520-5126","researcherid-numbers":", 赵东元/E-5796-2010 Solovyov, Leonid A/B-7246-2008 Yu, Chengzhong/I-8663-2012 Liu, Zheng/E-6119-2018 Terasaki, Osamu/Y-1137-2018","orcid-numbers":", 赵东元/0000-0002-1642-2510 Solovyov, Leonid A/0000-0002-3905-3252 Yu, Chengzhong/0000-0003-3707-0785 Liu, Zheng/0000-0001-9095-7647 Terasaki, Osamu/0000-0001-5803-0817","unique-id":"ISI:000188318300037","bibtex":"@article{ ISI:000188318300037,\nAuthor = {Tian, BZ and Liu, XY and Solovyov, LA and Liu, Z and Yang, HF and Zhang,\n ZD and Xie, SH and Zhang, FQ and Tu, B and Yu, CZ and Terasaki, O and\n Zhao, DY},\nTitle = {{Facile synthesis and characterization of novel mesoporous and mesorelief\n oxides with gyroidal structures}},\nJournal = {{JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}},\nYear = {{2004}},\nVolume = {{126}},\nNumber = {{3}},\nPages = {{865-875}},\nMonth = {{JAN 28}},\nAbstract = {{In this paper, we bring forward an effective strategy, solvothermal\n postsynthesis, to prepare ordered mesoporous silica materials with\n highly branched channels. Structural characterizations indicate that the\n titled mesoporous materials basically have the cubic double gyroidal\n (space group la-3d) structure with small fraction of distortions. The\n mesopore sizes and surface areas can be up to 8.8 nm and 540 m(2)/g,\n respectively, when microwave digestion is employed to remove the organic\n templates. A phase transition model is proposed, and possible\n explanations for the successful phase transition are elucidated. The\n results show that the flexible inorganic framework, high content of\n organic matrix, and nonpenetration of poly(ethylene oxide) segments may\n facilitate the structural evolution. This new synthetic strategy can\n also be extended to the preparation of other double gyroidal\n silica-based mesoporous materials, such as metal and nonmetal ions doped\n silica and organo-functionalized silica materials. The prepared 3D\n mesoporous silica can be further utilized to fabricate various ordered\n crystalline gyroidal metal oxide ``negatives{''}. The mesorelief\n ``negatives{''} (Co3O4 and In2O3 are detailed here) prepared by\n impregnation and thermolysis procedures exhibit undisplaced, displaced,\n and uncoupled enantiomeric gyroidal subframeworks. It has been found\n that the amount of metal oxide precursors (hydrated metal nitrates)\n greatly influence the (sub)framework structure and single crystallinity\n of the mesorelief metal oxide particles. The single crystalline gyroidal\n metal oxides are ordered both at mesoscale and atomic scale. 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