نتایج جستجو برای: nanoporous structure

تعداد نتایج: 1572004  

Hydrothermal and non-hydrothermal spherical TiO2 nanoporous with crystalline framework were prepared by sol-gel method. The Crystalline structures, morphologies and surface texturing of materials were determined by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption-desorption isotherms. The Hydrothermal spherical TiO2 nanoporous was found to have a narrow and strong p...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2007

2017
Yang Jeong Park Jung Woo Kim Ghafar Ali Hyun Jin Kim Yacine Addad Sung Oh Cho

We have presented a method to prepare a uniform anodic nanoporous oxide film on the surface of a cylindrical zircaloy (Zr) tube. The distribution of the electric field around the Zr tube determines the distribution of the thickness of the anodic nanoporous oxide film. The electric field generated when a cylindrical Zr tube is electrochemically anodized was simulated by using commercial code COM...

2017
Kecheng Guan Di Zhao Mengchen Zhang Jie Shen Guanyu Zhou Gongping Liu Wanqin Jin

Two-dimensional (2D) materials have been received increasing attention in various fields such as physics, material science, chemistry and engineering. In particular, the graphene-based membrane is an emerging subject mainly due to the atomic thickness, simple processing and the compatibility with other materials. In the case of water treatment, stable graphene-based laminar structures as well a...

Journal: :Nanoscale 2011
Ming Xu Dan Feng Rui Dai Haoyu Wu Dongyuan Zhao Gengfeng Zheng

Films with well-controlled porous structures provide many exciting application opportunities in chemistry and biology. Here we report the synthesis of a highly uniform, hierarchically nanoporous silica film structure, and its application in drug loading and release for antibacterial surface coating. Templated by both sub-micron poly-styrene (PS) particles and a triblock copolymer (F127), this h...

Journal: :Journal of the American Chemical Society 2011
Jianfeng Ye Wen Liu Jinguang Cai Shuai Chen Xiaowei Zhao Henghui Zhou Limin Qi

Unique spindle-shaped nanoporous anatase TiO(2) mesocrystals with a single-crystal-like structure and tunable sizes were successfully fabricated on a large scale through mesoscale assembly in the tetrabutyl titanate-acetic acid system without any additives under solvothermal conditions. A complex mesoscale assembly process involving slow release of soluble species from metastable solid precurso...

2005
Qiong Cai Alex Buts Nigel Seaton Mark Biggs

1. Introduction Nanoporous carbon materials are widely used in industry, medicine and elsewhere for separation processes, whilst they are also utilized in new applications such as catalyst supports, capacitors, gas storage and biomedical engineering applications [1-4]. Understanding the transport of species within the pore space is a key aspect in the design of nanoporous materials. A wide vari...

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