نتایج جستجو برای: ni co zno nano composite

تعداد نتایج: 553807  

2016

The objective of this study was to quantify the influence of zinc oxide nanoparticles (nanoZnO) on the water repellency and dimensional stability of beech wood. Beech wood blocks were treated with a nano-ZnO solution at four treatment levels (0, 10,000, 20,000, and 40,000 ppm) using a modified dip method. Also, a thermal treatment was performed at 60 and 120°C. After conditioning the samples, w...

2013
Qiang Ma Akihisa Ogino Takafumi Matsuda Masaaki Nagatsu

ZnO nano-particles with a diameter of 10-20 nm were fabricated under oxygen and helium mixture plasma circumstance by evaporating Zn target using pulsed laser ablation. Cathodoluminescence technique, combined with transmission electron microscopy, X-ray diffraction and energy-dispersive spectrometer, was applied to study luminescence property and crystalline structure of ZnO nano-particles. Var...

2008
Di LU Akihisa OGINO Takafumi MATSUDA Qiang MA Masaaki NAGATSU

In this work, the microwave surface wave plasma (MWSWP) equipment is used to grow the carbon nano-materials at low temperature on different catalysts prepared by the so-called plasma assisted sol-gel synthesis method. Without any additional heating method, the plasma itself can heat up the substrate to about 280oC. By applying the -600V bias voltage, the substrate temperature can reach more tha...

Journal: :cell journal 0

objective: nano components are today’s new wonder material. however, the safety or toxicity of these components in humans is not yet clear. in a previous study we indicated that nano zno (nzno) has a stronger anxiolytic effect compared to the conventional zno (czno). the present study was designed to evaluate the intraperitoneal administration of an opioidergic receptor agonist and antagonist o...

Journal: :Advanced sustainable systems 2022

Adv. Sustainable Syst. 2022, 6, 2100463 DOI: 10.1002/adsu.202100463 In the original published manuscript following three phrases are used frequently to described reported porous composite: “C, N Dual-Doped ZnO/Co”, “carbon and nitrogen dual-doped ZnO/Co” “ZnO/Co”. These descriptions inaccurate, in all of instances which they appear, accurate replacement is following: “ZnO/Co/N-C”. errors do not...

2011
Dadong Han Yutao Tian Tao Zhang Guogang Ren Zhuo Yang

This study focused on the effects of zinc oxide nanoparticles (nano-ZnO) on spatial learning and memory and synaptic plasticity in the hippocampus of young rats, and tried to interpret the underlying mechanism. Rats were randomly divided into four groups. Nano-ZnO and phosphate-buffered saline were administered in 4-week-old rats for 8 weeks. Subsequently, performance in Morris water maze (MWM)...

Journal: :international journal of nano dimension 0
n. assi 1department of chemistry, science and research branch, islamic azad university, tehran, iran a.a. mehrdad sharif department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran h. bakhtiari department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran q. s. manuchehri naeini department of chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran

zno and mn-zno nano powders were prepared by the sol-gel auto combustion method. the products were characterized by x-ray diffraction (xrd), energy dispersive analysis of x-ray (edx) and scanning electron microscopy (sem). structural and morphological properties of nano particles were investigated and the average crystalline size of zno and mn-doped zno was obtained 44 and 51 nm, respectively. ...

2008
E. Liu P. Xiao J. S. Chen B. C. Lim L. Li

Ni doped ZnO (Zn1 xNixO) thin films were grown on quartz substrates via magnetron sputtering deposition process with the Ni concentrations of 5, 10 and 20 at.% in the films. The effects of Ni doping level and post annealing on the structural and magnetic properties of Zn1 xNixO films were investigated by means of X-ray diffraction (XRD), alternating gradient magnetometer (AGM) and photoluminesc...

Journal: :The Journal of chemical physics 2015
Soumendu Datta Gopi Chandra Kaphle Sayan Baral Abhijit Mookerjee

Using density functional theory (DFT) based electronic structure calculations, the effects of morphology of semiconducting nanostructures on the magnetic interaction between two magnetic dopant atoms as well as a possibility of tuning band gaps have been studied in the case of the bi-doped (ZnO)24 nanostructures with the impurity dopant atoms of the 3d late transition metals-Mn, Fe, Co, Ni, and...

Journal: :Nanoscale 2012
Samarpita Senapati Suneel K Srivastava Shiv B Singh

The hexagonal zinc oxide coated nickel (Ni/ZnO) nanostructure photocatalyst has successfully been prepared by the reduction of nickel chloride hexahydrate using hydrazine hydrate through the solvothermal process at 140 °C followed by surface modification of the product by the reflux method at 110 °C for 1 h. The X-ray diffraction (XRD) pattern showed that the 'as prepared' sample consists of fa...

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