نتایج جستجو برای: copper nano

تعداد نتایج: 132074  

2016
Lung-Chieh Chen Cheng-Chiang Chen Kai-Chieh Liang Sheng Hsiung Chang Zhong-Liang Tseng Shih-Chieh Yeh Chin-Ti Chen Wen-Ti Wu Chun-Guey Wu

Nano-structured CuO-Cu2O complex thin film-based perovskite solar cells were fabricated on an indium tin oxide (ITO)-coated glass and studied. Copper (Cu) thin films with a purity of 99.995 % were deposited on an ITO-coated glass by magnetron reactive sputtering. To optimize the properties of the nano-structured CuO-Cu2O complex thin films, the deposited Cu thin films were thermally oxidized at...

2007
Robert J Asaro Yashashree Kulkarni

Synthesis of nano-twinned pure Cu by Lu et al. [L. Lu, R. Schwaiger, Z. W. Shan, M. Dao, K. Lu, S. Suresh, Nano-sized twins induce high rate sensitivity of flow stress in pure copper, Acta Mater. 53 (2005) 2169–2179] has produced materials with extremely attractive properties of combined high strength, strain rate sensitivity, and ductility adequate for applications. This note explores the unde...

Copper oxide (CuO) nanostructures are of particular interest because of their interesting properties and promising applications in batteries, super capacitors, solar cells, gas sensors, bio sensors, nano fluids and catalysis. In Recent past, more efforts have been received to design materials with different properties which is dependent on morphology.  In this work cupric oxide nano flakes were...

2011
L. C. Zhang H. Tanaka P. Gupta

This paper discusses some theoretical aspects in deforming nano-whiskers of monocrystalline copper by uniaxial tension. With the aid of the molecular dynamics analysis, the present study revealed that the behaviour of a nano-whisker is very sensitive to its size, crystal orientation and geometry. The most stable surface is with (111) atomic structure and the most reliable whisker for testing is...

2016
Hyun-Jun Hwang Kyung-Hwan Oh Hak-Sung Kim

We developed an ultra-high speed photonic sintering method involving flash white light (FWL) combined with near infrared (NIR) and deep UV light irradiation to produce highly conductive copper nano-ink film. Flash white light irradiation energy and the power of NIR/deep UV were optimized to obtain high conductivity Cu films. Several microscopic and spectroscopic characterization techniques such...

Journal: :iranian chemical communication 2014
rasoul pourtaghavi talemi sajjad bakhtiari nabi javadi morteza vatanparast

in the present study, we investigate the potentiometric behavior of cu2+ carbon paste electrodes based on two mercapto compounds 2-ethylmino-5-mercapto-1,3,4-thiadiazole (eamt) and 2-acetylamino-5-mercapto-1,3,4-thiadiazole (aamt) self-assembled on gold nano-paricle (gnp) as ionophore. then, the results obtained from the modified electrodes are compared. the self-assembled ionophores exhibit a ...

Journal: :Analytical and bioanalytical chemistry 2014
Cassandra L Smith Jennifer L Stauber Mark R Wilson Dianne F Jolley

Toxicity of metals to aquatic organisms is dependent on both external factors, such as exposure concentration and water quality parameters, and intracellular processes including specific metal-binding sites and detoxification. Current models used to predict copper toxicity in microalgae do not adequately consider these intracellular processes. This study compared the copper-binding proteins fro...

Journal: :تحقیقات دامپزشکی 0
شهین ثابت سروستانی دانش آموخته تغذیه دام دانشگاه شیراز، شیراز- ایران محمدرضا رضوانی بخش علوم دامی، دانشکده کشاورزی دانشگاه شیراز، شیراز- ایران محمد جواد ضمیری بخش علوم دامی، دانشکده کشاورزی دانشگاه شیراز، شیراز- ایران شهرام شکر فروش بخش بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشکده شیراز، شیراز- ایران هادی آتشی بخش علوم دامی، دانشکده کشاورزی دانشگاه شیراز، شیراز- ایران نجمه مصلح بخش علوم درمانگاهی، دانشکده دامپزشکی دانشکده شیراز، شیراز- ایران

background: following the ban on the use of growth stimulant antibiotics in many countries, interest has arisen in finding  a suitable alternative for antibiotics in poultry production. objectives: the aim of this study was to investigate the effect of supplementation of two levels of nano-copper (0 and 100 mg/kg) and two levels of mannan oligosaccharide (0 or 1 g/kg) as natural growth stimulan...

Journal: :caspian journal of chemistry 2013
jahan bakhsh raoof reza ojani fakhrosadat jamali sayed reza hosseini

metallic copper nanoparticles modified glassy carbon electrode is fabricated by reduction of cuso4 in the presence of cetyltrimethylammonium bromide (ctab) through potentiostatic method. as-prepared nanoparticles are characterized by scanning electron microscopy and electrochemical methods. copper oxide modified glassy carbon electrode (nano-cuo/mgce) is prepared using consecutive potential sca...

S. R. Allahkaram, Z. Shahri,

Metal matrix nano composite coatings possess enhanced properties such as corrosion and wear resistance. This paper aims to study the corrosion behavior of pure Co and Co-BN nano composite coatings deposited with different particles concentration (5-20 g L-1) on copper substrates using electroplating technique. Morphology and elemental compositions of the coatings were investigated by means of s...

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