Copper Oxide/Hydroxide Nanomaterial Synthesized from Simple Copper Salt

2020 ◽  
Vol 19 (04) ◽  
pp. 1950028 ◽  
Author(s):  
Chebrolu Rajani ◽  
V. Anuradha ◽  
Y. Sunandamma
Keyword(s):  
Electron Microscope ◽  
Copper Oxide ◽  
Average Crystallite Size ◽  
Xrd Analysis ◽  
Cuo Nanoparticles ◽  
Copper Salt ◽  
Frequency Variation ◽  
X Ray Diffraction ◽  
Low Frequencies ◽  
Transmission Electron

The copper oxide, CuO, and copper hydroxide, Cu(OH)2 nanomaterials have been prepared by a simple copper salt aqueous solution reaction. The powder X-ray diffraction (XRD) analysis showed the successful formation of Cu(OH)2 and CuO nanoparticles. The average crystallite size of these Cu(OH)2 and CuO nanoparticles was estimated and found to be around 17[Formula: see text]nm (Cu(OH)2) and 10[Formula: see text]nm (CuO). The surface morphology and size of the CuO particles were confirmed by Scanning Electron Microscope (SEM) and High-resolution transmission electron microscope (HRTEM). The Raman analysis, dielectric and conductivity of CuO nanoparticles have been performed. The frequency variation of the capacitance (real dielectric constant) and dielectric loss was studied. The capacitance of the CuO nanoparticles is high at low frequencies and decreases rapidly when the frequency is increased. The frequency dependent ac conductivity follows Johnscher’s power law.

scholarly journals Microscopic study of zinc nanoparticles synthesised using thermosetting polymer

2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Giriraj Tailor ◽  
Jyoti Chaudhay ◽  
Deepshikha Verma ◽  
Bhupendra Kr. Sarma
Keyword(s):  
Electron Microscope ◽  
Xrd Analysis ◽  
The Novel ◽  
X Ray Diffraction ◽  
Zinc Nanoparticles ◽  
Transmission Electron ◽  
Sem Study ◽  
Zinc Salts ◽  
Thermosetting Polymer ◽  
Low Crystalline

AbstractThe present study reports the novel synthesis of Zinc nanoparticles (Zn NPs) by thermal decomposition method and its characterisation by Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), and X-ray Diffraction Measurements (XRD). Synthesis of Zn NPs was achieved by using thermosetting polymer and zinc salts as precursor. Zn NPs were obtained on calcination at 850 °C for 30 min. SEM study reveals that synthesized nanoparticles are spherical in shape. XRD analysis shows that the Zn NPs formed are low crystalline in nature.

Electrical Properties of Copper Oxide Nanoparticles

2015 ◽  
Vol 30 ◽  
pp. 1-8 ◽  
Author(s):  
Suresh Sagadevan ◽  
Priya Murugasen
Keyword(s):  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Dielectric Constants ◽  
X Ray Diffraction ◽  
Low Frequencies ◽  
Plasma Energy ◽  
Different Temperatures ◽  
Particle Size And Morphology ◽  
Size And Morphology

Copper Oxide (CuO) nanoparticles were synthesized by the wet chemical method. The crystal structure and grain size of the particles were determined, using X-ray diffraction (XRD). The particle size and morphology were studied using the scanning electron microscope (SEM). The dielectric properties of CuO nanoparticles were carried out at different temperatures. The variation of the dielectric constant and dielectric loss were studied. The dielectric constants of the CuO nanoparticles are high at low frequencies, and decrease rapidly when the frequency is increased. Further, electronic properties like valence electron plasma energy, Penn gap, Fermi energy and electronic polarizability of the CuO nanoparticles, were estimated.

scholarly journals An effective approach to synthesize carbon nanotube-reinforced Al matrix composite precursor

2018 ◽  
Vol 25 (5) ◽  
pp. 983-991 ◽  
Author(s):  
Sandeep Alanka ◽  
Chanamala Ratnam ◽  
Balla Srinivasa Prasad
Keyword(s):  
Electron Microscope ◽  
Xrd Analysis ◽  
Milling Process ◽  
Homogeneous Distribution ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Scientific Attention ◽  
Processing Steps ◽  
Al Matrix Composite ◽  
Al Matrix

AbstractAluminum-based nanocomposites reinforced with carbon nanotubes have increased scientific attention in today’s life. The dispersion quality was the critical aspect, which decides the homogeneous distribution of CNTs within the Al matrix as starting precursors. In this study, a new attempt has been made to obtain a uniformly dispersed Al-0.75% CNT precursor via combining ultra-sonication, cubic tumbler rod milling, and spray drying. This process was integrated with organic deflocculant (formulator) in specific proportion to transform as a semi-wet-based route. The effect of milling media on the morphology and interface structure of the as-produced composite precursor after all the processing steps was investigated through scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD) analysis, Raman spectroscopy, and Fourier transform infrared spectroscopy. The results reveal that the approach is effective in CNT dispersion in Al precursor, which shields the nanotube structure from damage for longer periods of milling time due to the organic formulator mixture, and also, the CNT retention in the Al precursor with minimum clustering is identified compared to the ball milling process. Carbon traces were confirmed in the as-produced composite precursor by this approach.

XRD Analysis of Cu-Al Interconnect Intermetallic Compound in an Annealed Micro-Chip

2012 ◽  
Vol 620 ◽  
pp. 166-172 ◽  
Author(s):  
Kok Yau Chua ◽  
May Ting Hng ◽  
Cher Chia Lee ◽  
T. Joseph Sahaya Anand
Keyword(s):  
Electron Microscope ◽  
Intermetallic Compound ◽  
Transmission Electron Microscope ◽  
Xrd Analysis ◽  
Peak Detection ◽  
Energy Dispersive ◽  
Powder Form ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

Cu-Al intermetallic compound (IMC) in Cu wire-Al bond pad interconnect interface is drawing attention of researches. However, due to thin IMC thickness, the characterizations of the IMC are limited to expensive and time consuming techniques. An evaluation is performed to use common X-Ray Diffraction (XRD) technique to identify the IMC in the Cu wired micro-chip samples in powder form. Existence of mixture of CuAl and CuAl2 was first confirmed by transmission electron microscope (TEM) and energy dispersive X-ray (EDX). In XRD analysis, peak correspond to CuAl phase is identified from measurement with slower scan configuration. The difficulty for IMC peak detection in diffractogram is due to low composition ratio of IMC relative to other materials available in the sample. KOH treatment for enhancing IMC peaks intensity does not work as expected as it etches the IMC as well.

Thermal Conductivity Analysis and Characterization of Copper Oxide Nanofluids through Different Techniques

2016 ◽  
Vol 40 ◽  
pp. 105-112 ◽  
Author(s):  
S. Nallusamy
Keyword(s):  
Thermal Conductivity ◽  
Copper Oxide ◽  
Average Crystallite Size ◽  
X Ray Diffraction ◽  
Visible Absorption ◽  
Xrd Pattern ◽  
Transmission Electron ◽  
Wet Chemical ◽  
Uv Visible

The aim of this research is to analyse the thermal conductivity of copper oxide (CuO) nanofluids. In the present study CuO nanofluids were prepared using a new method of wet chemical method and the testing was carried out by various techniques. X-Ray Diffraction (XRD) pattern was used to determine the crystal structure and the average crystallite size of the CuO nanofluids. Scanning Electron Microscope (SEM) and Transmission Electron Microscopy (TEM) were used to study the morphology and the particle size. Similarly Dynamic Light Scattering (DLS) was used to estimate the size of the CuO nanofluids. Finally UV-Visible absorption spectrum was used to measure the optical property of the CuO nanofluids. The thermal conductivity of CuO nanofluids was analyzed using KD2 Pro thermal property analyzer and concludes that the thermal conductivity is increased with the increase of particle loading.

scholarly journals Comparing study of CuO synthesized by biological and electrochemical methods for biological activity

2019 ◽  
Vol 30 (1) ◽  
pp. 94 ◽  
Author(s):  
Shaimaa Hamed Jaber
Keyword(s):  
Electron Microscopy ◽  
Copper Oxide ◽  
Electrochemical Method ◽  
Cuo Nanoparticles ◽  
Biological Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Average Size ◽  
Cuo Nanoparticle

In the present work, copper oxide (CuO) nanoparticles have been synthesized by two methods (electro chemical and biological method).The synthesized nanoparticles characterized by x-ray diffraction (XRD), Scanning Electron Microscopy(SEM) and transmission Electron Microscopy(TEM). results show that to copper oxide (CuO) nanoparticle have average size of (11-15)nm of electrochemical method and (6-12 ) nm of biological method by different technique CuO nanoparticles were applied to study the inhibition of bacterial using (staphylococcus and pseudomonas). The antibacterial activity of CuO nanoparticles show a higher inhibition of pseudomonas bacteria when a compared with staphylococcus bacteria.

Luminescent Properties of Gd2MoO6:Eu3+ Nanophosphor for WLEDs

2021 ◽  
Author(s):  
Yan Chen ◽  
Yuemei Lan ◽  
Dong Wang ◽  
Guoxing Zhang ◽  
Wenlong Peng ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Fluorescence Spectra ◽  
Solvothermal Method ◽  
Luminescent Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

A series of Gd2-xMoO6:xEu3+(x=0.18-0.38) nanophosphors were synthesized by the solvothermal method. The properties of this nanophosphor were characterized by x-ray diffraction (XRD), transmission electron microscope (TEM), fluorescence spectra and diffuse...

Structural, Morphological, Magnetic and Self-Heating Studies of One-Step Polyol Synthesized Manganese Ferrite (MnFe2O4) Nanoparticles

2019 ◽  
Vol 19 (01) ◽  
pp. 1950003
Author(s):  
P. R. Ghutepatil ◽  
S. H. Pawar
Keyword(s):  
Room Temperature ◽  
Synthesis Method ◽  
Average Crystallite Size ◽  
Superparamagnetic Nanoparticles ◽  
Polyol Synthesis ◽  
X Ray Diffraction ◽  
Self Heating ◽  
Transmission Electron ◽  
One Step ◽  
Mnfe2o4 Nanoparticles

In this paper, uniform and superparamagnetic nanoparticles have been prepared using one-step polyol synthesis method. Structural, morphological and magnetic properties of obtained MnFe2O4 nanoparticles have been investigated by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM) and thermogravimetric analysis (TGA) techniques. Structural investigation showed that the average crystallite size of obtained nanoparticles was about 10[Formula: see text]nm. Magnetic study revealed that the nanoparticles were superparamagnetic at room temperature with magnetization 67[Formula: see text]emu/g at room temperature. The self-heating characteristics of synthesized MnFe2O4 nanoparticles were studied by applying external AC magnetic field of 167.6 to 335.2[Formula: see text]Oe at a fixed frequency of 265[Formula: see text]kHz. The SAR values of MnFe2O4 nanoparticles were calculated for 2, 5, 10[Formula: see text]mg[Formula: see text]mL[Formula: see text] concentrations and it is observed that the threshold hyperthermia temperature is achieved for all concentrations.

Formation of Graphite Encapsulated Nickel Nanoparticles by Ball Milling and Annealing of Expanded Graphite with Nickel

2011 ◽  
Vol 80-81 ◽  
pp. 217-220 ◽  
Author(s):  
Xue Qing Yue ◽  
Hai Jun Fu ◽  
Da Jun Li
Keyword(s):  
Electron Microscope ◽  
Ball Milling ◽  
Transmission Electron Microscope ◽  
Nickel Nanoparticles ◽  
Size Range ◽  
Expanded Graphite ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nickel Powders ◽  
Transmission Electron

Graphite encapsulated nickel nanoparticles were prepared by ball milling andsubsequently annealing a mixture of expanded graphite with nickel powders. The products were characterized by transmission electron microscope and X-ray diffraction. The formation mechanism of the products was discussed. Results show that the products have a size range of 20-150 nm. The graphite and nickel in the products all exhibit a high crystallinity.

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