نتایج جستجو برای: نانوذرات sno2
تعداد نتایج: 10227 فیلتر نتایج به سال:
Acetylene (C2H2) gas sensors were developed by synthesizing a reduced graphene oxide (rGO)-loaded SnO2 hybrid nanocomposite via a facile two-step hydrothermal method. Morphological characterizations showed the formation of well-dispersed SnO2 nanoparticles loaded on the rGO sheets with excellent transparency and obvious fold boundary. Structural analysis revealed good agreement with the standar...
Nonlithium metals such as sodium have attracted wide attention as a potential charge carrying ion for rechargeable batteries. Using in situ transmission electron microscopy in combination with density functional theory calculations, we probed the structural and chemical evolution of SnO2 nanowire anodes in Na-ion batteries and compared them quantitatively with results from Li-ion batteries (Hua...
metal oxides play a very important role in many areas of chemistry, physics and materials science.the metal elements are able to form a large diversity of oxide compounds. in this investigation, wesynthesis sno2 and c,n,s-tridoped sno2 nanoparticles by precipitation method. the synthesizedsno2 and c,n,s-tridoped sno2 nanoparticles were characterized by instrumental analysis methods,such as x-ra...
A SnO2/graphene nanocomposite was prepared via a facile solvothermal process using stannous octoate as a Sn source. The as-prepared SnO2/graphene nanocomposite exhibited excellent electrochemical behavior with a high reversible capacity, a long cycle life and a good rate capability when used as an anode material for lithium-ion batteries.
در این تحقیق، از عصاره آویشن برای سنتز سبز نانوذرات اکسید قلع بر روی بستر بنتونیت (SnO2 NPs@bent) استفاده شد. عصاره آبی آویشن به عنوان یک عامل کاهنده موثر و پایدار کننده سبز در این روش سنتزی ایفای نقش کرد. SnO2 NPs@bent توسط روشهای مختلف همچون طیفسنجیفوریهزیرقرمز (FTIR)،پراش پ...
Sensing of Methanol and Ethanol with Nano-Structured SnO2 (110) in Gas Phase: Monte Carlo Simulation
The SnO2 films deposited from inorganic precursors via sol–gel dip coating method have been found to be highly sensitive to methanol and ethanol vapor. Three dimensional nano-structure materials have attracted the attention of many researches because the possibility to apply them for near future devices in sensors, catalysis and energy related. The sensitivity and selectivity of SnO2 (110) nano...
سیستم لایه نازک sno2-al2o3از ترکیب کلرید قلع (0.009 مول) و درصدهای مختلف ناخالصی آلومینیوم(%100-0)، و لایه های sno2-al2o3:s نیز برای دو نسبت اتمی %40 و 10%= sn/al و مقادیر مختلف ناخالصی گوگرد(s/sn=0.05-0.5) تهیه شدند. نتایج بدست آمده برای لایه های نازک sno2-al2o3 نشان می دهد که در تراکم پایین آلومینیوم، در طیف های xrd تنها فاز sno2 مشاهده می شود، ولی در مقادیر بالاتر، فاز al2o3 نیز قابل مشاهده ...
sensing of methanol and ethanol with nano-structured sno2 (110) in gas phase: monte carlo simulation
the sno2 films deposited from inorganic precursors via sol–gel dip coating method have been found to be highly sensitive to methanol and ethanol vapor. three dimensional nano-structure materials have attracted the attention of many researches because the possibility to apply them for near future devices in sensors, catalysis and energy related. the sensitivity and selectivity of sno2 (110) nano...
In this study, tin/tinoxide/multiwalled carbon nanotube (Sn/SnO2/MWCNT) nanocomposites were produced as anode materials for Li-ion batteries by a two-step process. Metallic tin was evaporated onto free-standing MWCNT buckypapers having controlled porosity and subsequently rf plasma oxidized in Ar:O2 (1:1) gas mixture. Besides, Sn/SnO2 nanocomposites were produced in the same conditions onto sta...
According to recent research, the use of nanoparticles as a gas-sensitive material increases the selectivity and sensitivity and shortens the response time of a sensor. However, the synthesis of SnO2 nanoparticles presents many difficulties. The following article presents a simple and inexpensive method for the synthesis of SnO2 nanoparticles. The influence of the surfactant and polymer choice ...
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