Monodisperse fusiform microporous silica formed by evaporation-induced self assembly of polyamino acid copolymer template

The role of the synthesis parameters (the molar ratio of template, isopropyl alcohol, acetylacetone, and water with respect to titanium(IV) tetraisopropoxide) has been thoroughly investigated to understand their effects on the mesostructures and the formation of crystalline phases of mesoporous titania xerogels in less water condition (no added water) at 60 oC. The resultant mesoporous titania are more likely to have worm-hole like structure as the dominant stable structure. The template appears to play no significant role in structure directing at mesophase level. However, increasing the amount of the template delays the formation of anatase crystalline phase Keywords: mesoporous titania, templating synthesis, anatase, evaporation-induced self-assembly

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Aerosol Flow Reactor with Controlled Temperature Gradient forIn SituGas-Phase X-Ray Experiments—Measurements of Evaporation-Induced Self-Assembly (EISA) in Aerosols

Aerosol Science and Technology ◽

10.1080/02786826.2011.564680 ◽

2011 ◽

Vol 45 (7) ◽

pp. 805-810 ◽

Cited By ~ 6

Author(s):

K. Jungnikl ◽

M. Rappolt ◽

I. Shyjumon ◽

B. Sartori ◽

P. Laggner ◽

...

Keyword(s):

Temperature Gradient ◽

Self Assembly ◽

Flow Reactor ◽

X Ray ◽

Aerosol Flow ◽

Evaporation Induced Self Assembly

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Solvent-tuning of ordered mesoporous silicas prepared through evaporation-induced self-assembly templated by poly(ethylene oxide-b-ε-caprolactone)

RSC Advances ◽

10.1039/c4ra11569d ◽

2014 ◽

Vol 4 (105) ◽

pp. 61012-61021 ◽

Cited By ~ 5

Author(s):

Wei-Cheng Chu ◽

Chen-Xin Lin ◽

Shiao-Wei Kuo

Keyword(s):

Ethylene Oxide ◽

Self Assembly ◽

Mesoporous Silicas ◽

Size Distributions ◽

Ordered Mesoporous ◽

Pore Size Distributions ◽

Evaporation Induced Self Assembly ◽

Poly Ethylene Oxide ◽

Poly Ethylene ◽

Selection Of

Highly ordered mesoporous silicas having narrow pore size distributions and various morphologies merely through selection of an appropriate solvent.

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Extra Surfactant-Assisted Self-Assembly of Highly Ordered Monolayers of BaTiO3 Nanocubes at the Air—Water Interface

Nanomaterials ◽

10.3390/nano8090739 ◽

2018 ◽

Vol 8 (9) ◽

pp. 739 ◽

Cited By ~ 8

Author(s):

Hiroki Itasaka ◽

Ken-Ichi Mimura ◽

Kazumi Kato

Keyword(s):

Self Assembly ◽

Large Scale ◽

Three Dimensional ◽

Water Interface ◽

Compression Pressure ◽

Air Water Interface ◽

Out Of Plane ◽

Key Factor ◽

Evaporation Induced Self Assembly ◽

20 Nm

Assembly of nanocrystals into ordered two- or three-dimensional arrays is an essential technology to achieve their application in novel functional devices. Among a variety of assembly techniques, evaporation-induced self-assembly (EISA) is one of the prospective approaches because of its simplicity. Although EISA has shown its potential to form highly ordered nanocrystal arrays, the formation of uniform nanocrystal arrays over large areas remains a challenging subject. Here, we introduce a new EISA method and demonstrate the formation of large-scale highly ordered monolayers of barium titanate (BaTiO3, BT) nanocubes at the air-water interface. In our method, the addition of an extra surfactant to a water surface assists the EISA of BT nanocubes with a size of 15–20 nm into a highly ordered arrangement. We reveal that the compression pressure exerted by the extra surfactant on BT nanocubes during the solvent evaporation is a key factor in the self-assembly in our method. The BT nanocube monolayers transferred to substrates have sizes up to the millimeter scale and a high out-of-plane crystal orientation, containing almost no microcracks and voids.

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