نتایج جستجو برای: cuo zno al2o3

تعداد نتایج: 34497  

Journal: :Nanotechnology 2009
Simas Rackauskas Albert G Nasibulin Hua Jiang Ying Tian Victor I Kleshch Jani Sainio Elena D Obraztsova Sofia N Bokova Alexander N Obraztsov Esko I Kauppinen

Nanowires (NWs) of metal oxides (Fe(2)O(3), CuO, V(2)O(5) and ZnO) were grown by an efficient non-catalytic economically favorable method based on resistive heating of pure metal wires or foils at ambient conditions. The growth rate of iron oxide NWs exceeds 100 nm s(-1). Produced NWs were typically 1-5 microm long with diameters from 10 to 50 nm. The produced metal oxide NWs were characterized...

2013
Chih-Hung Hsu Lung-Chien Chen Yi-Feng Lin

This study reports the optoelectronic characteristics of ZnO/GaP buffer/CuO-Cu₂O complex (COC) inverse heterostructure for solar cell applications. The GaP and COC layers were used as buffer and absorber in the cell structure, respectively. An energy gap widening effect and CuO whiskers were observed as the copper (Cu) layer was exerted under heat treatment for oxidation at 500 °C for 10 min, a...

Journal: :ACS omega 2023

In this study, dual S-scheme ZnIn2S4–Al2O3–ZnO (ZIS–Al–Zn) heterojunctions were produced by a facile, low cost, and rapid combustion technique. These accelerated the photocatalytic hydrogen production due to multi-channel-promoted separation of photocarriers. By optimizing content components, synthesized ZIS–Al–Zn composite with 20 wt% ZnIn2S4 30 Al2O3 in demonstrated highest rate 54.2 mmol g–1...

 هدف از این مطالعه تولید فیلم‌های نانوکامپوزیتی بر پایۀ پلی‌اتیلن سبک حاوی نانوذرات فلزی شامل نقره (Ag)، اکسید روی (ZnO)، و اکسید مس (CuO) و بررسی خواص مکانیکی و ضدمیکروبی آنها به‌عنوان فیلم‌های فعال در بسته‌بندی مواد غذایی برای کاهش شدت فرایندهای لازم در صنایع غذایی و میزان نگهدارنده‌های شیمیایی در غذا بود. در این پژوهش نانوذرات فلزی با یک‌درصد وزنی به فیلم‌های پلی‌اتیلنی که به روش اکستروژن مذ...

2004
Yukio Yoshino Yoshimitsu Ushimi Hajime Yamada Masaki Takeuchi

・ Abstract – Characteristics of Zinc oxide (ZnO) piezoelectric thin films have been investigated for thin film bulk acoustic wave (BAW) resonators with relationship to bottom electrodes. A Metal/ZnO/Metal/SiO2 membrane structure, which has secondary harmonics, was adopted for the BAW resonators. The ZnO thin films, showed clear c-axis orientation, were made by rf sputtering on bottom electrodes...

Journal: :Sustainability 2023

The driving motor is one of the most crucial components an electric vehicle (EV). commonly used type in EVs induction motor. These motors generate heat during operation due to flow electrical current through motor’s coils, as well friction and other factors. For long-run high efficiency motor, cooling becomes more important. This article utilized ANSYS Motor-CAD map temperature signature invest...

2012
Johannes Rousk Kathrin Ackermann Simon F. Curling Davey L. Jones

The increasing industrial application of metal oxide Engineered Nano-Particles (ENPs) is likely to increase their environmental release to soils. While the potential of metal oxide ENPs as environmental toxicants has been shown, lack of suitable control treatments have compromised the power of many previous assessments. We evaluated the ecotoxicity of ENP (nano) forms of Zn and Cu oxides in two...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده شیمی 1391

فعالیت فتوکاتالیستی zno توسط تکنیک های متنوعی مانند دوپ کردن با غیرفلزات، افزودن فلزات واسطه و کامپوزیت کردن با نیمه هادی ها بهبود می یابد. کامپوزیت کردن اکسیدهای نیمه هادی متفاوت، می تواند شکاف نواری را کاهش و دامنه ی جذب در ناحیه ی نور مرئی را گسترش دهد و منجر به جداسازی بیشتر جفت الکترون-حفره و رسیدن به فعالیت فتوکاتالیستی بالا شود. در این پژوهش، در ابتدا نانوساختارهای zno با غلظت های متفاو...

Journal: :EcoMat 2021

The reactive adsorption desulfurization is an important and efficient technology for the ultra-deep of gasoline. performance adsorbent vital efficiency process. formation inert spinels commonly recognized deactivation adsorbents. In this work, TiO2 was incorporated in Ni/ZnO-Al2O3 to inhibit spinel phase. formed a stable protection layer on surface Al2O3, which prevented interaction between Al2...

Journal: :Applied sciences 2022

Chemical warfare agents (CWAs) are highly toxic and fast-acting easy to cause large-scale poisoning humans livestock after being released. The activated carbon used for CWAs adsorption has disadvantages of limited capacity, aging deactivation. Metal oxides have environmental stability, they characterized by long lasting broad spectrum when thermal catalytic decomposition. Therefore, in this stu...

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