نتایج جستجو برای: decorated graphene
تعداد نتایج: 56289 فیلتر نتایج به سال:
در این کار، ما کاتالیست pt-sn/graphene را برای اکسیداسیون اتانول در محیط اسیدی، گزارش کرده ایم. گرافن، با استفاده از محلول مایع یونی و لایه برداری الکتروشیمیایی الکترودهای گرافیت سنتز شد. سپس کاتالیست های pt-sn بر پایه گرافن به وسیله اتیلن گلیکول، که به عنوان عامل تثبیت کننده استفاده می شود، احیا شدند تا نانو ذرات ptsn با پخش شدگی بالا بر روی صفحات گرافن تهیه شوند و در اکسیداسیون اتانول در پیل ...
Graphene is widely used in nanotechnologies to amplify the photocatalytic activity of TiO₂, but the development of TiO₂/graphene composites imposes the assessment of their risk to human and environmental health. Therefore, reduced graphene oxide was decorated with two types of TiO₂ particles co-doped with 1% iron and nitrogen, one of them being obtained by a simultaneous precipitation of Ti3+ a...
BACKGROUND β-Galactosidase is a vital enzyme with diverse application in molecular biology and industries. It was covalently attached onto functionalized graphene nano-sheets for various analytical applications based on lactose reduction. METHODOLOGY/PRINCIPAL FINDINGS Response surface methodology based on Box-Behnken design of experiment was used for determination of optimal immobilization c...
This article describes the design of piezoresistive thin-film sensors based on single-layer graphene decorated with metallic nanoislands. The defining characteristic of these composite thin films is that they can be engineered to exhibit a temperature coefficient of resistance (TCR) that is close to zero. A mechanical sensor with this property is stable against temperature fluctuations of the t...
In this study, the problem of volume expansion and agglomeration SnO2-based electrode materials has been solved with a unique multifaced approach. Nanosized SnO2 is coated around CNT void structure decorated between graphene sheets. The aggregation nanostructure voided structure. Besides, conductivity buffering contributions have provided by production composite CNT. Herein layers were nanotube...
A thorough search of the distribution pattern of Na, K, and Ca atoms on graphene surface, carried out using a synergistic combination of density functional theory and particle swarm optimization algorithm, yielded some unusual results. The equilibrium distribution is concentration and metal dependent; the metal atoms distribute uniformly when their coverage ratio M : C (M = Na, K, Ca) is 1 : 6,...
We report a catalyst-free synthesis of cantilevered carbon nanosheet extensions, or petals, from graphite fibers by microwave plasma CVD. Results reveal that the petals grow from the fiber surface layers while preserving graphitic continuity from fiber to the petals. Subtraction of Raman signatures from pristine and decorated fibers reveals a convolution of two underlying peaks at 2687 and 2727...
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