Increasing the specific electrical capacitance of supercapacitors has been received great attention from both researchers and industry. Herein, how to achieve this by coating surface reduced graphene oxide (rGO) with copper(II) (CuO) zinc (ZnO) is reported. The CuO/rGO ZnO/rGO hybrid layers were prepared via chemical reactions between (GO) salts copper zinc, respectively. crystallographic struc...

In recent years, fabrication of metal oxide nanoparticles is intensively gaining the interest of various chemists as well as biochemist due to their applications in different fields. Among all the transition metal oxides, CuO and ZnO are the important metal oxide nanoparticles exhibiting tremendous properties and a wide range of applications. Both CuO and ZnO nanoparticles were prepared by comb...

The objective of this paper is to investigate the theoretical performance Parabolic Trough Collector (PTC) using various nanofluids. performances are calculated for Al2O3, graphite, magnetite, SWCNH, CuO, SiO2, MWCNT, TiO2, Fe2O3, and ZnO in water heat transfer equations, thermodynamic properties nanofluid pumping power utilised development novel thermal model. efficiency PTC calculated, econom...

Epitaxial m-plane ZnO thin films have been deposited on m-plane sapphire substrates at a low temperature of 200°C by atomic layer deposition. A 90° in-plane rotation is observed between the m-plane ZnO thin films and the sapphire substrates. Moreover, the residual strain along the ZnO [-12-10] direction is released. To fabricate metal-insulator-semiconductor devices, a 50-nm Al2O3 thin film is ...

Understanding the effect of copper oxide (CuO)–decorated zinc nanotube on carbon monoxide (CO) adsorption is crucial for designing a high-performance CO gas sensor. In this work, sensing properties oxide–decorated (CuO-ZnO) are studied theoretically by employing first-principles density functional theory first time. The stability, mechanism, states, and change in electrical conductivity studied...

In the present work, ZnO - SiO2 and Bi2O3– CuO nanocomposites have been prepared by sol gel with alternate precursors existing in literature. They are characterised by XRD, SEM,UV, FTIR and photoluminescence  spectra .The XRD results indicate a crystallite size of  approximately 80 nm for both nanocomposites. SEM image shows a heterogeneous particle size for bot...