Diatom-templated synthesis of ordered meso/macroporous hierarchical materials

被引：64

作者：

Cai, Xiaohui

Zhu, Guangshan ^{[1
]}

Zhang, Weiwei

Zhao, Huanyu

Wang, Ce

Qiu, Shilun

Wei, Yen

机构：

[1] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

[2] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China

[3] Drexel Univ, Dept Chem, Philadelphia, PA 19104 USA

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 18期

关键词：

hierarchical materials; nanomaterials; porosity; sol-gel processes; template synthesis;

D O I：

10.1002/ejic.200600339

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Ordered meso/macroporous hierarchical silica materials have been prepared using block copolymer P123 (EO20PO70EO20) and an inverse carbon replica of diatom as templates. The silica wall of the diatom was replaced by ordered mesoporous silica, while the micron-sized diatom architecture was replicated by using an inverse carbon replication technique. The mesoporous silica was found to have macroporous structures of both columnar and discoid diatom templates. The presence of hierarchical meso/macroporous systems was confirmed by the results from scanning and transmission electron microscopy, powder X-ray diffraction, and nitrogen adsorption-de sorption studies. The materials with columnar and discoid morphologies have BET surface areas of about 400 m(2) g(-1).

引用

页码：3641 / 3645

页数：5

共 47 条

[1]

Anderson MW, 2000, ANGEW CHEM INT EDIT, V39, P2707, DOI 10.1002/1521-3773(20000804)39:15<2707::AID-ANIE2707>3.0.CO

[2]

2-M

[3] Glycol-modified silanes in the synthesis of mesoscopically organized silica monoliths with hierarchical porosity [J].

Brandhuber, D ;

Torma, V ;

Raab, C ;

Peterlik, H ;

Kulak, A ;

Hüsing, N .

CHEMISTRY OF MATERIALS, 2005, 17 (16) :4262-4271

[4]

Dong AA, 2002, ADV MATER, V14, P1506, DOI 10.1002/1521-4095(20021016)14:20<1506::AID-ADMA1506>3.0.CO

[5]

2-Z

[6]

Dong AG, 2002, ADV MATER, V14, P926, DOI 10.1002/1521-4095(20020618)14:12<926::AID-ADMA926>3.0.CO

[7]

2-1

[8] Morphology and texture of silica prepared by sol-gel synthesis on the surface of fibrous carbon materials [J].

Ermakova, MA ;

Ermakov, DY ;

Kuvshinov, GG .

KINETICS AND CATALYSIS, 2002, 43 (03) :427-432

[9] Mesoporosity in diatoms via surfactant induced silica rearrangement [J].

Fowler, CE ;

Hoog, Y ;

Vidal, L ;

Lebeau, B .

CHEMICAL PHYSICS LETTERS, 2004, 398 (4-6) :414-417

[10] Dual templating of macroporous silicates with zeolitic microporous frameworks [J].

Holland, BT ;

Abrams, L ;

Stein, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (17) :4308-4309

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