نتایج جستجو برای: cuo nanostructures

تعداد نتایج: 23015  

ژورنال: :نشریه شیمی و مهندسی شیمی ایران 2015
سید قربان حسینی اسماعیل ایومن

در این پژوهش، تجزیه گرمایی آمونیوم پرکلرات با افزودن نانوذره­هایcuo تجاری بررسی شده است. نانوذره­های cuo با روش های مشخصه یابی پراش اشعه ایکس (xrd) و میکروسکوپ الکترونی عبوری (tem) بررسی شد. تصویر آنالیز tem نشان می دهد که نانوذره­های cuo دارای مورفولوژی به تقریب کروی هستند. فعالیت کاتالیستی نانوذره­های cuo بر تجزیه گرمایی آمونیوم پرکلرات (ap) با آنالیزهای گرمایی dsc و tga بررسی شد، که نتیجه­ها...

Journal: :advances in environmental technology 0
mohsen mehdipour ghazi faculty of chemical, petroleum, and gas engineering, semnan university, semnan, 35131-19111, iran afsaneh shokri faculty of chemical, petroleum, and gas engineering, semnan university, semnan, 35131-19111, iran

in present investigation, zno nanostructure was synthesized by means of a precipitation and sonochemical methods. the x-ray diffraction (xrd) pattern is shown that the wurtzite structure of zno has the hexagonal symmetry and there is no impurity. the average zno particles crystallite size was calculated about 41 nm. the sem and tem images reveal nanostructure zno particles with a cauliflower-li...

2010
SHI SU RUZHONG ZUO YAN RAN WANLI ZHAO XIAOHUI WANG LONGTU LI

The CuO modified (Na0.52K0.48)NbO3 (NKN) piezoelectric ceramics were prepared by a solid-state reaction method. On the one hand, CuO doping can improve the densification behavior and simultaneously promote the grain growth, however, has little effect on the Curie temperature. On the other hand, the mechanical quality factor Qm obviously increases, the dielectric loss tanδ decreases, and the pie...

Journal: :Journal of the Egyptian Society of Parasitology 2015
Halim A Saad Mohamed I Soliman Ahmed M Azzam B Mostafa

Nanoparticles (NPs) have received more attention as antiparasitic agents. In the present study, silver and copper nanoparticles were synthesized and characterized using scanning electron microscopy (SEM), transmission electron microscope (TEM) and X-ray fluorescence (XRF). The antiparasitic activity of Ag and CuO nanoparticles were tested against two of the most environmentally spread parasites...

2015
Mathieu Lasfargues Qiao Geng Hui Cao Yulong Ding

In this study, the effect of nanoparticle concentration was tested for both CuO and TiO₂ in eutectic mixture of sodium and potassium nitrate. Results showed an enhancement in specific heat capacity (Cp) for both types of nanoparticles (+10.48% at 440 °C for 0.1 wt % CuO and +4.95% at 440 °C for 0.5 wt % TiO₂) but the behavior toward a rise in concentration was different with CuO displaying its ...

2013
Xavier Rocquefelte Karlheinz Schwarz Peter Blaha Sanjeev Kumar Jeroen van den Brink

Multiferroic materials, in which ferroelectric and magnetic ordering coexist, are of fundamental interest for the development of multi-state memory devices that allow for electrical writing and non-destructive magnetic readout operation. The great challenge is to create multiferroic materials that operate at room temperature and have a large ferroelectric polarization P. Cupric oxide, CuO, is p...

2013
Jen-Kai Wu Wei-Jen Chen Yuan Huei Chang Yang Fang Chen Da-Ren Hang Chi-Te Liang Jing-Yu Lu

The fabrication and properties of n-ZnO nanowires/p-CuO coaxial heterojunction (CH) with a photoresist (PR) blocking layer are reported. In our study, c-plane wurtzite ZnO nanowires were grown by aqueous chemical method, and monoclinic CuO (111) was then coated on the ZnO nanowires by electrochemical deposition to form CH. To improve the device performance, a PR layer was inserted between the Z...

2014
Mariola J. Edelmann Leslie A. Shack Caitlin D. Naske Keisha B. Walters Bindu Nanduri

Copper (II) oxide (CuO) nanoparticles (NP) are widely used in industry and medicine. In our study we evaluated the response of BEAS-2B human lung cells to CuO NP, using Stable isotope labeling by amino acids in cell culture (SILAC)-based proteomics and phosphoproteomics. Pathway modeling of the protein differential expression showed that CuO NP affect proteins relevant in cellular function and ...

2012
Gul Amin

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