نتایج جستجو برای: shape mesoporous ncsm

تعداد نتایج: 200293  

Journal: :Journal of colloid and interface science 2002
Yifeng Wang Charles Bryan Huifang Xu Phil Pohl Yi Yang C Jeffrey Brinker

This paper presents a part of our work on understanding the effect of nanoscale pore space confinement on ion sorption by mesoporous materials. Acid-base titration experiments were performed on both mesoporous alumina and alumina particles under various ionic strengths. The point of zero charge (PZC) for mesoporous alumina was measured to be approximately 9.1, similar to that for nonmesoporous ...

Journal: :Angewandte Chemie 2011
Kevin E Shopsowitz Wadood Y Hamad Mark J MacLachlan

Template synthesis based on the self-assembly of lyotropic liquid crystals offers access to mesoporous solids with high specific surface areas and periodic structures. Incorporating mesopores (i.e., pores ranging from 2 to 50 nm in diameter) into carbonaceous materials may be advantageous for certain applications, including the adsorption of large molecules, electrochemical double-layer capacit...

Journal: :Chemical communications 2009
Jeong Kuk Shon Soo Sung Kong Ji Man Kim Chang Hyun Ko Mingshi Jin Yoon Yun Lee Seong Hee Hwang Jeong Ah Yoon Jong-Nam Kim

Highly ordered mesoporous silver, which exhibits well-defined mesopores, high surface area and pore volume, has been successfully obtained using a cubic mesoporous silica, KIT-6, with controlled surface hydrophobicity as the hard template.

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...

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