Results 251 to 260 of about 134,100 (299)

Periodic Mesoporous Dendrisilicas

Science, 2004
We report the synthesis of a new class of materials called periodic mesoporous dendrisilicas. They are prepared from dendrimers with trialkoxysilyl groups at the outmost shell. Dendrimers of various cores and numbers of shells are used. The dendrisilica synthesis is based on acid- or base-catalyzed hydrolysis of the trialkoxysilyl groups and subsequent
Kai, Landskron, Geoffrey A, Ozin
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Mesoporous materials and electrochemistry

Chemical Society Reviews, 2013
Ordered mesoporous materials prepared by the template route have attracted increasing interest from the electrochemists community due to their plenty of unique properties and functionalities that can be effectively exploited in electrochemical devices.
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Reversible replication between ordered mesoporous silica and mesoporous carbon

Chemical Communications, 2002
Highly ordered mesoporous silica can be regenerated from a mesoporous carbon CMK-3 that is a negative replica of mesoporous silica SBA-15, indicating reversible replication between carbon and inorganic materials.
Min, Kang, Seung Hwan, Yi, Hyung Ik, Lee, Jae Eui, Yie, Ji Man, Kim   +4 more
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Encapsulation of enzyme in large mesoporous material with small mesoporous windows

Chemical Communications, 2012
Trypsin has been encapsulated in the mesopores of a hierarchical mesoporous silica material synthesized via Cu(I) catalyzed azide-alkyne click reaction between azide functionalized large spherical SBA-15 particles and alkyne functionalized mesoporous silica nanoparticles (MSNs).
Bharmana, Malvi, Sayam Sen, Gupta
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Transformation from single-mesoporous to dual-mesoporous organosilica nanoparticles

Nanoscale, 2017
Transformation from single-mesoporous to dual-mesoporous structured organosilica nanoparticles can be achieved by simply varying the volume fraction of ethanol in the synthesis system, using lauryl sulfonate betaine and sodium dodecyl sulfonate as dual-templates. Core-shell structured dual-mesoporous organosilica nanoparticles possess smaller mesopores
Xue Wang, Libo Zhou, Yunling Liu, Shengyan Yin, Zhen-An Qiao, Qisheng Huo   +5 more
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Block-Copolymer-Templated Ordered Mesoporous Silica:  Array of Uniform Mesopores or Mesopore−Micropore Network?

The Journal of Physical Chemistry B, 2000
Microporosity and connectivity of ordered mesopores of SBA-15 silica were studied using nitrogen adsorption and novel methods based on selective pore blocking via organosilane modification, and on the imaging of inverse platinum replica of ordered mesoporous structure.
Ryoo, R Ryoo, Ryong, Ko, CH, Kruk, M, Antochshuk, V, Jaroniec, M   +4 more
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Hydrothermally Stable Periodic Mesoporous Ethane-Silica and Bimodal Mesoporous Nanostructures

Journal of Nanoscience and Nanotechnology, 2011
We report the hydrothermally stable organized periodic mesoporous organosilicas (PMOs) and bimodal mesoporous structures by using mixed templates of oligomeric alkyl-ethylene oxide and ionic surfactants under basic conditions. Oligomeric alkyl-ethylene oxide surfactant [(Polyoxyethylene (2) cetyl ether, structure is C16H33(OCH2CH2)nOH, n-2, hereafter ...
Wahab, Mohammad A, Chaobin, H
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Preparation of Mesoporous SiCBN Ceramic Templated by Mesoporous Carbon

Journal of the Korean Ceramic Society, 2007
Well-ordered mesoporous SiCBN ceramics have been successfully synthesized by infiltrating a polymeric precursor, which was prepared from borazine and 2,4,6-trimethyl-2,4,6-trivinylcyclotrisilazane via a hydroboration reaction, into a mesoporous carbon (CMK-3) as a hard template.
Quoc Dat Nghiem, Hyang-Im Ryoo, Dong-Pyo Kim   +2 more
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Periodic mesoporous hybrid monolith with hierarchical macro–mesopores

Microporous and Mesoporous Materials, 2007
Abstract We describe the synthesis of hybrid monolith with hierarchically macro–mesoporous structure by a sol–gel process from the mixture of 1,4-bis(triethoxysilyl)benzene (BTEB) and tetraethoxysilane (TEOS) using poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (P123) as structure directing agent under acid medium.
Hua Zhong, Guiru Zhu, Jie Yang, Peiyuan Wang, Qihua Yang   +4 more
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Mesoporous Calcite by Polymer Templating

Crystal Growth & Design, 2008
Layered calcite crystals with internal 10−50 nm pores are precipitated from aqueous solution containing a polymer−peptide conjugate that aggregates into pore-forming templates. The zwitterionic peptide sequence behaves as the “binding block” of a double-hydrophilic block copolymer, facilitating templating, nucleation inhibition, and stabilization of ...
G. Page, M., Nassif, N., G. Börner, H., Antonietti, M., Cölfen, H.   +4 more
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