نتایج جستجو برای: cuo nps

تعداد نتایج: 15045  

Journal: :Water 2023

Nanomaterials, due to their large aspect-to-size ratio and reactive surfaces that facilitate access through biological barriers, can induce oxidative stress in host cells. Therefore, there is a growing concern about the risks of nanomaterials. This study investigated effects copper (1.5 mg/L) as CuO or nanoparticles (Cu-NPs) common carp Cyprinus carpio along with beneficial Myristiga fragrans s...

Journal: :Acta chimica Slovenica 2010
Sameh M K Aboul-Fotouh Marwa M I Hassan

This paper deals with maximizing dimethyl ether (DME) production from methanol due to its industrial importance as a future diesel fuel. The high acidity and the micro-porous structure of the catalysts encouraged this reaction. Catalysts containg 6% CuO supported on H-ZSM-5 and H-MOR zeolites give high activities for DME production. The 6% CuO/HMOR is more selective for DME production, while th...

Journal: :Micro & Nano Letters 2021

Owing to its environment-friendly, biocompatible, non-toxic nature of nanoparticles attained from green plant extract, it has remarkable significance in the field nanotechnology towards effective biomedical application. This work reports synthesis copper oxide by means Cissus quadrangularis and Piper betle via green-synthesis route. The medicinal leaf extracts possessing phytochemicals such as ...

2013
Hyunje Woo Balaji Mohan Eunjung Heo Ji Chan Park Hyunjoon Song Kang Hyun Park

New functionalized CuO hollow nanospheres on acetylene black (CuO/AB) and on charcoal (CuO/C) have been found to be effective catalysts for C-S bond formation under microwave irradiation. CuO catalysts showed high catalytic activity with a wide variety of substituents which include electron-rich and electron-poor aryl iodides with thiophenols by the addition of two equivalents of K2CO3 as base ...

Journal: :Nanotechnology 2009
L Liao Z Zhang B Yan Z Zheng Q L Bao T Wu C M Li Z X Shen J X Zhang H Gong J C Li T Yu

We report the properties of a field effect transistor (FET) and a gas sensor based on CuO nanowires. CuO nanowire FETs exhibit p-type behavior. Large-scale p-type CuO nanowire thin-film transistors (10(4) devices in a 25 mm(2) area) are fabricated and we effectively demonstrate their enhanced performance. Furthermore, CuO nanowire exhibits high and fast response to CO gas at 200 degrees C, whic...

Journal: :Physical chemistry chemical physics : PCCP 2014
Hyun S Park Chong-Yong Lee Erwin Reisner

A p-type heterojunction photoelectrode consisting of platinized CuBi2O4 layered on a CuO film was prepared. The CuO|CuBi2O4|Pt electrode photo-generates H2 in pH neutral aqueous solution during visible light irradiation and exhibits a substantially enhanced photocurrent compared to CuO|Pt and CuBi2O4|Pt electrodes. Reduced electron-hole recombination by the band offsets in the heterostructure i...

Journal: :Agronomy 2021

Sandy soils with high alkalinity are characterized by low copper (Cu) contents that lead to many deficiency symptoms in plants. Cu plants can be corrected using several cheap sources. Nevertheless, the effects novel sources, such as nanoparticles (NPs), have on remain poorly studied. In present work, we investigated effect and efficiency of supplementation onion (Allium cepa L.) sulfate, chelat...

Journal: :Materials today communications 2023

Copper oxide nanoparticles (CuO-NPs) recently engrossed the attention of investigators due to their incredible features and numerous applications in pharmacological industry. This research work focuses on manufacture copper an aqueous media utilizing Spinacia oleracea leaf extract. Various analytical methods like UV/Vis Spectroscopy, FT-IR spectroscopy, X-Ray diffraction studies, SEM analysis w...

2013
Zafar Hussain Ibupoto Kimleang Khun Valerio Beni Xianjie Liu Magnus Willander

In this study, we have developed a sensitive and selective glucose sensor using novel CuO nanosheets which were grown on a gold coated glass substrate by a low temperature growth method. X-ray differaction (XRD) and scanning electron microscopy (SEM) techniques were used for the structural characterization of CuO nanostructures. CuO nanosheets are highly dense, uniform, and exhibited good cryst...

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