نتایج جستجو برای: inorganic matrix

تعداد نتایج: 435509  

Nanocomposite membrane comprising of both organic and inorganic material qualities have become a prime focus for the next generation membranes. Nanocomposite may consist of hard permeable or impermeable inorganic particles, such as zeolites, carbon molecular sieves and, silica and carbon nanotubes, metal oxide blended with continuous polymeric matrix presents an attract...

Journal: :Optical Materials Express 2022

All-inorganic cesium lead bromide perovskite nanocrystals (PNCs) are highly promising candidates for various optoelectronic and photonic devices. However, poor stability upon exposure to moisture toxicity issues significantly limit their applications. A modern strategy on resolving these is the encapsulation of luminescent within transparent inorganic oxide glasses. While procedure effect devel...

2013
Luisa M. Schäck Sandra Noack Ramona Winkler Gesa Wißmann Peter Behrens Mathias Wellmann Michael Jagodzinski Christian Krettek Andrea Hoffmann

For in vitro differentiation of bone marrow-derived mesenchymal stem cells/mesenchymal stromal cells into osteoblasts by 2-dimensional cell culture a variety of protocols have been used and evaluated in the past. Especially the external phosphate source used to induce mineralization varies considerably both in respect to chemical composition and concentration. In light of the recent findings th...

2016
Wei Hu Min Hu Wei-Wei Hu Hongya Niu Jing Zheng Yusheng Wu Wentai Chen Chen Chen Lingyu Li Min Shao Shaodong Xie Yuanhang Zhang

Severe air pollution, which is caused by large amount of pollutants and adverse synoptic processes, appears often 10 in Asia. However, limited studies on aerosols have been conducted under high emission intensity and under unique geographical and meteorological conditions. In this study, an Aerodyne high resolution time-of-flight aerosol mass spectrometry (HR-ToF-AMS) and other state-of-the-art...

2010
Tae-Hyun Bae Junqiang Liu Joshua A. Thompson William J. Koros Christopher W. Jones Sankar Nair

A methodology to engineer roughened inorganic nanostructures on zeolites by deposition and growth of metal hydroxides is reported. Pure-silica (PS) MFI and (aluminosilicate) LTA zeolite crystals are treated by solvothermal methods to deposit inorganic hydroxide (e.g., Mg(OH)2) coatings with nanoscale roughened features on the crystal surfaces in a controlled manner. Detailed characterization of...

2016
Christopher John Davey David Leak Darrell Alec Patterson

Fermentations provide an alternative to fossil fuels for accessing a number of biofuel and chemical products from a variety of renewable and waste substrates. The recovery of these dilute fermentation products from the broth, however, can be incredibly energy intensive as a distillation process is generally involved and creates a barrier to commercialization. Membrane processes can provide a lo...

Journal: :Chemical communications 2011
Seung-Hoon Choi In-Sung Hwang Jong-Heun Lee Seong-Geun Oh Il-Doo Kim

Microstructural evolution of spinel Zn(2)SnO(4) nanofibers was manipulated via an in situ phase separation process of inorganic precursors and a matrix polymer during electrospinning and calcination. Chemiresistive gas sensors using porous Zn(2)SnO(4) fibers exhibited superior C(2)H(5)OH sensing response.

Journal: :Chemical communications 2008
Hirotaka Koga Takuya Kitaoka Hiroyuki Wariishi

Cu nanoparticles (CuNPs) were successfully synthesized in situ on ZnO whiskers as a selective scaffold, which were supported in a microstructured paper matrix composed of inorganic fibers; as-prepared paper composites were easy to handle in practical use and demonstrated excellent catalytic performance in the methanol reforming process for effective hydrogen production.

Journal: :Chemical reviews 2003
Frank N Keutsch Jeffery D Cruzan Richard J Saykally

3. Ab Initio Calculations 2543 C. Dynamics 2550 1. Group Theory 2551 2. H-Bond Network Rearrangement (HBNR) 2552 3. Intramolecular Vibrations 2557 4. Intermolecular Vibrations 2558 III. Experimental Data 2558 A. Condensed-Phase Environments 2560 1. Matrix-Isolation Spectroscopy 2560 2. Inorganic Host Complexes 2561 3. Water Trimer in Liquid Helium Droplets 2561 B. Gas-Phase Spectroscopy of the ...

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