نتایج جستجو برای: mesoporous

تعداد نتایج: 10528  

Journal: :Chemical communications 2015
Tianyu Yang Ruifeng Zhou Da-Wei Wang San Ping Jiang Yusuke Yamauchi Shi Zhang Qiao Michael J Monteiro Jian Liu

Hierarchical mesoporous yolk-shell structured carbon nanospheres (YSCNs) with an ordered mesoporous carbon core and a microporous carbon shell show excellent electrochemical performance with a maximal specific capacitance of 159 F g(-1).

Journal: :Dalton transactions 2014
Chandrashekhar Malba Umayal P Sudhakaran Silvia Borsacchi Marco Geppi Francesco Enrichi Marta Maria Natile Lidia Armelao Tiziano Finotto Riccardo Marin Pietro Riello Alvise Benedetti

The encapsulation of [Eu(dbm)3phen] into functionalized mesoporous silica nanoparticles (MSN) has been carried out to study the effect of chemical environments on the photoluminescence properties of the rare-earth complex. Surface functionalization was achieved by the reaction of the silanol groups on the surface of mesoporous silica with different organosilylating agents such as (3-aminopropyl...

2015
Zao Yi Jiangshan Luo Xiulan Tan Yong Yi Weitang Yao Xiaoli Kang Xin Ye Wenkun Zhu Tao Duan Yougen Yi Yongjian Tang

Mesoporous gold sponges were prepared using 4-dimethylaminopyridine (DMAP)-stabilized Au seeds. This is a general process, which involves a simple template-free method, room temperature reduction of HAuCl4·4H2O with hydroxylamine. The formation process of mesoporous gold sponges could be accounted for the electrostatic interaction (the small Au nanoparticles (~3 nm) and the positively charged D...

Journal: :Physical chemistry chemical physics : PCCP 2013
Takashi Kamegawa Shota Tanaka Hiroki Seto Dayang Zhou Hiromi Yamashita

Aluminum-containing mesoporous silica with hierarchical macroporous architecture (Al-MMS) was successfully prepared using a solvent evaporation method through the combination of precursor solution for synthesis of Al-containing mesoporous silica (Al-MS) and poly(methyl methacrylate) (PMMA) colloidal crystals as a hard template. The porous structure and the state of aluminum were investigated us...

2012
Linrui Hou Long Yang Jiaoyang Li Jie Tan Changzhou Yuan

Sunlight-driven mesoporous BiVO(4) nanorods with monoclinic structure have been successfully synthesized via a simple hydrothermal method. The as-prepared one-dimensional BiVO(4) nanorods exhibited high specific surface area due to their unique mesoporous structure. The mesoporous BiVO(4) nanorods possessed strong photoabsorption properties in the visible light region as well as the ultravisibl...

Journal: :Nature communications 2015
Chiyoung Park Yunju La Tae Hyun An Hu Young Jeong Sebyung Kang Sang Hoon Joo Hyungju Ahn Tae Joo Shin Kyoung Taek Kim

Solution self-assembly of block copolymers into inverse bicontinuous cubic mesophases is a promising new approach for creating porous polymer films and monoliths with highly organized bicontinuous mesoporous networks. Here we report the direct self-assembly of block copolymers with branched hydrophilic blocks into large monoliths consisting of the inverse bicontinuous cubic structures of the bl...

Journal: :Environmental science & technology 2009
Dong Suk Kim Seung-Yeop Kwak

The photocatalytic inactivation of Escherichia coli with the film adhesion method by using Degussa P25TiO2 and mesoporous TiO2 coated on glass was investigated. Monodisperse spherical mesoporous TiO2 with a morphology size of approximately 800 nm was synthesized via the sol-gel approach and coated onto glass substrates without cracking by using the doctor blade method with various amounts of po...

Journal: :Science 2011
Kyungsu Na Changbum Jo Jeongnam Kim Kanghee Cho Jinhwan Jung Yongbeom Seo Robert J Messinger Bradley F Chmelka Ryong Ryoo

Crystalline mesoporous molecular sieves have long been sought as solid acid catalysts for organic reactions involving large molecules. We synthesized a series of mesoporous molecular sieves that possess crystalline microporous walls with zeolitelike frameworks, extending the application of zeolites to the mesoporous range of 2 to 50 nanometers. Hexagonally ordered or disordered mesopores are ge...

2011
Shao-Wen Cao Ying-Jie Zhu

A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse a-Fe2O3 mesoporous microspheres. In this approach, Fe(NO3)3 · 9H2O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H2O and ethanol. Under the present experimental conditions, monodisperse a-Fe2O3 mesopor...

Journal: :Nanobiotechnology : the journal at the intersection of nanotechnology, molecular biology, and biomedical sciences 2007
Jie Lu Monty Liong Sean Sherman Tian Xia Michael Kovochich Andre E Nel Jeffrey I Zink Fuyuhiko Tamanoi

Biocompatible mesoporous silica nanoparticles, containing the fluorescence dye fluorescein isothiocyanate (FITC), provide a promising system to deliver hydrophobic anticancer drugs to cancer cells. In this study, we investigated the mechanism of uptake of fluorescent mesoporous silica nanoparticles (FMSN) by cancer cells. Incubation with FMSN at different temperatures showed that the uptake was...

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