نتایج جستجو برای: specific surface bet of 501 m2g

تعداد نتایج: 21256088  

S-doped and bare mesoporous TiO2 were prepared using titanium tetraisopropoxide and thiocarbamide as raw materials. Prepared materials were characterized by means of fourier transform infrared spectroscopy FT-IR, thermogravimetry-differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), UV–Vis absorption spectroscopy, Brunauer–Emmett–Teller (BET) specific surface area and Barrett–Joy...

زمانیان, علی, زواره, سیامک, شمسی, مهدی, نظافتی, نادر,

Ternary (%mol) (64SiO2-31CaO-5P2O5) system of sol-gel derived bioactive glass fibers was prepared by electrospinning method. X-ray Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and nitrogen adsorption test (BET) analyses were performed to investigate the phase and chemical group of the composition, morphology of the surface and specific surface area of the f...

La1-xSrxAlO3 (x=0 to 0.4) perovskite materials were synthesized by the reverse strike co-precipitation method and their soot oxidation activity was evaluated. All the catalysts synthesized were characterized using XRD, BET specific surface area, FESEM and XPS techniques. As analyzed by XRD, La1-xSrxAlO3 <...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی علوم پایه زنجان - دانشکده فیزیک 1392

in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...

Journal: Nanomedicine Journal 2016
Baharak Divband Maasoumeh Khatamiana Mahdieh Daryana

Objective(s): Binary hybrids of chitosan-zeolite have many interesting applications in separation and bacteriostatic activity. Materials and Methods: Template free ZSM-5 zeolite was synthesized by hydrothermal method, physical hydrogels of nano chitosan in the colloidal domain were obtained in the absence of toxic organic solvent and then nano chitosan/ZSM-5 hybrid composites with nano chitosan...

2009
A. Radjenovic

This paper describes the adsorption of two organic (acetic and citric) acids on the blast furnace sludge, a representative by-product of the steelmaking industry. By PIXE, XRD, BET and SEM methods, it was shown that blast furnace sludge is a complex heterogeneous material with a specific surface area of s = 31.46 m g, composed mainly of amorphous phase (w = 76.2 %), calcite (w = 9.9 %), magneti...

Journal: :Journal of immunology 2007
Marianne Gerstmayr Nicola Ilk Irma Schabussova Beatrice Jahn-Schmid Eva M Egelseer Uwe B Sleytr Christof Ebner Barbara Bohle

An ideal vaccine for allergen-specific immunotherapy of type I allergies should display reduced mediator-releasing capacity, induce maturation of APC, and modify the disease-eliciting Th2-dominated allergen-specific response to a more physiological response. We have previously shown that rSbsC-Bet v 1, the recombinant fusion protein of a bacterial surface (S-layer) protein of Geobacillus stearo...

Journal: Nanochemistry Research 2018
Sang Woo Joo Younes Hanifehpour,

In this study, Eu-doped CdSe nanoparticles with variable Eu3+ content were synthesized by a simple sonochemical method. Eu3+ substitution into the structure of CdSe resulted in a material with new physical properties, composition and morphology. The synthesized nanoparticles were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscop...

2009
Chaikarn Liewhiran Nittaya Tamaekong Anurat Wisitsoraat Sukon Phanichphant

High specific surface area (SSA(BET): 141.6 m(2)/g) SnO(2) nanoparticles doped with 0.2-3 wt% Ru were successfully produced in a single step by flame spray pyrolysis (FSP). The phase and crystallite size were analyzed by XRD. The specific surface area (SSA(BET)) of the nanoparticles was measured by nitrogen adsorption (BET analysis). As the Ru concentration increased, the SSA(BET) was found to ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1389

the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...

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