نتایج جستجو برای: cu zno

تعداد نتایج: 80474  

Journal: :Korean Journal of Metals and Materials 2021

In this study, we report a methodology that simultaneously improved the corrosion resistance and visible transparency of ZnO/Cu/ZnO transparent heaters with addition reactively sputtered Al2O3 layers. To assess resistance, ZnO layers thicknesses in range 0-20 nm were deposited onto 20 nm-thick Cu layer, behavior underlying was investigated by evaluating sheet change an 85 °C/85% humidity test. ...

2016
Jingyu Liu Yang Zhang Caihong Liu Mingzeng Peng Aifang Yu Jinzong Kou Wei Liu Junyi Zhai Juan Liu

In this work, we present a facile, low-cost, and effective approach to fabricate the UV photodetector with a CuI/ZnO double-shell nanostructure which was grown on common copper microwire. The enhanced performances of Cu/CuI/ZnO core/double-shell microwire photodetector resulted from the formation of heterojunction. Benefiting from the piezo-phototronic effect, the presentation of piezocharges c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم پایه 1394

در این پایان نامه نانوپودر اکسید روی به روش سل-ژل اصلاح شده سنتز و اثر افزودن ناخالصی مس و آلومینیوم بر روی ویژگی های ساختاری، اپتیکی و فوتوکاتالیستی آن مورد بررسی قرار گرفت. طیف پراش پرتو ایکس ‎(xrd)‎ حاصل از نمونه ها نشان دهنده ی ساختار هگزاگونال وورتسایت می باشند. همانطور که از نمودار xrd نمونه ها مشخص است با افزایش غلظت 5 و 10 درصد al، قله های اضافی در 2???59/5?^? و 2???65?^? ایجاد شده که م...

Journal: :Angewandte Chemie 2014
Matthias B Fichtl Julia Schumann Igor Kasatkin Nikolas Jacobsen Malte Behrens Robert Schlögl Martin Muhler Olaf Hinrichsen

Different surface sites of solid catalysts are usually quantified by dedicated chemisorption techniques from the adsorption capacity of probe molecules, assuming they specifically react with unique sites. In case of methanol synthesis catalysts, the Cu surface area is one of the crucial parameters in catalyst design and was for over 25 years commonly determined using diluted N2O. To disentangle...

Journal: :international journal of nano dimension 0
m. qandalee department of biology, garmsar branch, islamic azad university, garmsar, iran. m. hatami polymer research laboratory, university of bonab, bonab, i. r. iran. a. esmaeilzadeh department of chemistry, ayatollah amoli branch, islamic azad university, amol, iran. a. shojaeian department of chemistry, ayatollah amoli branch, islamic azad university, amol, iran. p. biparva department of basic sciences, sari agricultural sciences and natural resources university, p.o. box 578, sari 4818168984, iran.

two-component reaction of 2-aminobenzophenones with acetylenic esters in the presence of γ-al2o3 and cu/zno as suitable heterogeneous catalysts has been studied. nano γ-al2o3 and cu/zno showed high activities when used as surface catalysts for the synthesis of quinoline derivatives. after completion of the reaction, the catalyst was recovered and reused several times under the same reaction con...

2009
Yan-Gu Lin Yu-Kuei Hsu San-Yuan Chen Yu-Kai Lin Li-Chyong Chen Kuei-Hsien Chen

The use of hydrogen for energy generation has attracted significant attention in recent years as a clean, sustainable, and transportable alternative fuel, and this interest has consequently sparked a rapid global development of hydrogen fuel cells for electric power generation. Catalytic reformation of hydrocarbons, with careful attention to avoid storage and safety issues, is currently the pre...

Journal: :Journal of animal science 2011
N W Shelton M D Tokach J L Nelssen R D Goodband S S Dritz J M DeRouchey G M Hill

Three experiments were conducted to evaluate the effects of increasing dietary Cu and Zn on weanling pig performance. Diets were fed in 2 phases: phase 1 from d 0 to 14 postweaning and phase 2 from d 14 to 28 in Exp. 1 and 2 and d 14 to 42 in Exp. 3. The trace mineral premix, included in all diets, provided 165 mg/kg of Zn from ZnSO(4) and 16.5 mg/kg of Cu from CuSO(4). In Exp. 1, treatments we...

2012
Sheng Chu Jingjian Ren Dong Yan Jian Huang Jianlin Liu

Triangular and hexagonal shaped noble metal (Au, Ag, Pt, Pd) nanodisks were synthesized on the top facets of ZnO nanorods via simple deposition-annealing method. Other metals (Ni, Cu, Cr, Pb, Al) only formed irregular shaped nanostructures on ZnO nanorods. The morphology, elemental composition, as well as growth mechanism of the metal nanodisks/ZnO nanorod composite materials were studied. The ...

2015
Won-Kyung Kim Seunghun Lee Duck Hee Lee In Hee Park Jong Seong Bae Tae Woo Lee Ji-Young Kim Ji Hun Park Yong Chan Cho Chae Ryong Cho Se-Young Jeong

Copper electrodes with a micromesh/nanomesh structure were fabricated on a polyimide substrate using UV lithography and wet etching to produce flexible transparent conducting electrodes (TCEs). Well-defined mesh electrodes were realized through the use of high-quality Cu thin films. The films were fabricated using radio-frequency (RF) sputtering with a single-crystal Cu target--a simple but inn...

Well-aligned Cu-doped ZnO nanorods were successfully synthesized on polyethylene terephthalate (PET) substrate using chemical bath deposition method. The structural and optical properties of Cu-doped ZnO nanorods were investigated using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and photoluminescence (PL) spectroscopy...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید