scholarly journals Molybdenum Trioxide Microrods synthesized with Corn Straw as Biological Templates and its Electrochemical Performance in Aqueous Battery

2021 ◽  
Vol 24 (2) ◽  
pp. 73-77
Author(s):  
Jianzhi Sun ◽  
Yan Dong ◽  
Xinfang Wang ◽  
Chunyan Kong ◽  
Jinming Hong ◽  
...  
Keyword(s):  
Molybdenum Trioxide ◽  
Average Diameter ◽  
Cycling Performance ◽  
X Ray Diffraction ◽  
Corn Straw ◽  
X Ray ◽  
Scanning Rate ◽  
Aqueous Battery ◽  
Crystal Characterization

In this paper, MoO3 microrods was prepared using corn straw as biological template via roasting process．The components and crystal characterization of the material were investigated via X-ray diffraction(XRD)，scanning electron microscopy( SEM), and the electrochemistry property and mechanism was studied．The results show that the MoO3 material synthesized by template method is Orthorhombic structures．And the MoO3 particles were submicron and micron rods with uniform distribution and a smooth surface. MoO3 microrods had an average diameter that ranged from 1 to 2 μm. The result indicated that the MoO3 as the new negative of aluminum battery delivers a higher discharge capacity of 190 mAh/g at a scanning rate of 1mv/s, which showing good capacity and cycling performance.

Crystal Characterization of Spherical Silicon Solar Cell by X-ray Diffraction

2006 ◽  
Vol 45 (5A) ◽  
pp. 3933-3937 ◽  
Author(s):  
Satoshi Omae ◽  
Takashi Minemoto ◽  
Mikio Murozono ◽  
Hideyuki Takakura ◽  
Yoshihiro Hamakawa
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystal Characterization

Preparation and Characterization of Needle-Like ZnO on TiO2 Nanoparticles by Solution-Immersion Method and RF Magnetron Sputtering

2013 ◽  
Vol 832 ◽  
pp. 596-601 ◽  
Author(s):  
N.A.M. Asib ◽  
Aadila Aziz ◽  
A.N. Afaah ◽  
Mohamad Rusop ◽  
Zuraida Khusaimi
Keyword(s):  
Magnetron Sputtering ◽  
Average Diameter ◽  
Rf Magnetron Sputtering ◽  
Zno Nanostructures ◽  
X Ray Diffraction ◽  
Immersion Method ◽  
X Ray ◽  
Xrd Patterns ◽  
Average Size

Needle-like zinc oxide (ZnO) nanostructures was deposited on titanium dioxide (TiO2) nanoparticles by solution-immersion method and Radio Frequency (RF) magnetron sputtering with diffferent RF powers, respectively on a glass substrate to synthesis nanocomposites of ZnO/TiO2. Field Emission Scanning Electrons Microscope (FESEM) images demonstrate that needle-like ZnO (112-1110 nm) are deposited on the surface of the TiO2nanoparticles with the diameter of approximately 36.3-62.9 nm. At 200 W, more needle-like ZnO with smallest average diameter (112 nm) appeared on the TiO2nanoparticles, which also has the smallest average size of 36.3 nm The compositions of elements in the nanocomposites were showed by Energy Dispersive X-ray Spectrometry (EDX). All elements of Ti, O, and Zn are observed as major components which confirm the presence of TiO2and ZnO in the composite. X-ray Diffraction (XRD) patterns of the nanocomposites show ZnO formed on TiO2nanoparticles are hexagonal with a wurtzite structure and it revealed ZnO/TiO2thin films were succesfully deposited as nanocomposites of ZnTiO3at 100 W,Zn2TiO4at 150 W and Zn2Ti3O8at 200 W and above.

Fabrication and Optical Characterization of Silicon Carbide Nanofibers

2007 ◽  
Vol 1006 ◽  
Author(s):  
Saima Khan ◽  
Aurangzeb Khan ◽  
Martin E. Kordesch
Keyword(s):  
Silicon Carbide ◽  
Polyethylene Oxide ◽  
Average Diameter ◽  
Main Peak ◽  
X Ray Diffraction ◽  
Electrospinning Technique ◽  
X Ray ◽  
Broad Emission ◽  
Infrared Spectral

AbstractSilicon Carbide (SiC) nanofibers were synthesized from SiC powder dispersed in polyethylene oxide (PEO) solution in Chloroform using the electrospinning technique. The as-spun fibers were then annealed at 1000ËC to 7 hours. The average diameter of the annealed fibers is 500 nm while the length of the annealed fibers is about 50 µm. The fibers were characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) and Cathodoluminescence (CL). PL spectra from the annealed SiC fibers show a broad emission in the red-infrared spectral regime. The main peak is centered at 774 nm while the shoulder on the left is at 740 nm

Preparation and Characterization of Sepiolite Nanofibers by Microwave Chemical Methods

2012 ◽  
Vol 427 ◽  
pp. 82-87 ◽  
Author(s):  
Fei Wang ◽  
Jin Sheng Liang ◽  
Qing Guo Tang ◽  
Cong Chen ◽  
Ya Lei Chen
Keyword(s):  
Reaction Time ◽  
Treatment Process ◽  
Average Diameter ◽  
X Ray Diffraction ◽  
Chemical Methods ◽  
X Ray ◽  
Chemical Technique ◽  
Sepiolite Fiber ◽  
Sepiolite Nanofibers

The sepiolite samples were defibered by using microwave chemical technique, and then different sepiolite samples were obtained with different treatment process. The effect of reaction time on the defibering for sepiolite fiber bundles was studied systematically. Through characterization by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscope (FTIR), it was found that the defibered sepiolite samples had an average diameter of about 100 nm and length greater than 20μm. The defibering effect of sepiolite samples as prepared reached optimum at the reaction time of 13 min, and the structural stability of sepiolite was kept after defibering treatment.

Preparation and Characterization of MoS2 Microsphere by Hydrothermal Method

2013 ◽  
Vol 631-632 ◽  
pp. 306-309 ◽  
Author(s):  
Ya Ru Cui ◽  
Jiang Shan He ◽  
Xiao Ming Li ◽  
Jun Xue Zhao ◽  
Ao Li Chen ◽  
...  
Keyword(s):  
Self Assembly ◽  
Hydrothermal Reaction ◽  
Average Diameter ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Ammonium Heptamolybdate ◽  
X Ray ◽  
Influence Mechanism ◽  
Dispersing Agent

In this work, MoS2 microsphere was synthesized by hydrothermal reaction, in which thiourea (CS(NH2)2) was used as S-source and reducing agent, ammonium heptamolybdate ((NH4)6Mo7O24.4H2O) was used as Mo-source. The influence of temperature, as well as different dispersing agents, on the reaction product’s morphology, structure and phase composition was discussed. X-ray diffraction results show that all the as-synthesized products are the hexagonal 2H-MoS2 without impurity. SEM images of the as-prepared MoS2 samples without adding any dispersing agent present spherical morphology with sheet-like structures shaped on the surface. A possible formation mechanism of the MoS2 microsphere is that of self-assembly growth process; In addition, for the samples adding surfactant CTAB, SDBS or PVP in the reactants, the MoS2 is confined to layered structure. Compared with SDBS and PVP, CTAB has the best dispersion effect which ensure the as-synthesized microsphere with about 300nm average diameter, and the influence mechanism of which can be deduced as electrostatic interaction and stereo-hindrance effect.

Preparation and Characterization of Physical Properties of Durian Skin Fibers Biocomposite

2012 ◽  
Vol 576 ◽  
pp. 212-215 ◽  
Author(s):  
R.M. Manshor ◽  
Hazleen Anuar ◽  
Wan Busu Wan Nazri ◽  
M.I. Ahmad Fitrie
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Crystallinity Index ◽  
Average Diameter ◽  
Environmental Scanning ◽  
X Ray Diffraction ◽  
X Ray ◽  
Lignocellulosic Fiber ◽  
The Common

Durian skin fibres (DSF) are cellulose-based fibres extracted from the durian peel. This paper present the physical behaviour, chemical structure and crystallinity of the fibres, as observed by environmental scanning electron microscope (ESEM), Fourier transform infrared (FTIR) and X-ray diffraction (XRD). The characteristic of the natural fibers produces from durian skins are similar with other types of natural fiber. The average diameter and density are 0.299 mm and 1.243 g/cm3, respectively while the crystallinity index is slightly higher than the common fibers. The properties and charecteristic of durian skin fibers are within the propertise of lignocellulosic fiber which is suitable for development of biocomposite materials.

Influence of Calcite in the Filtration Properties of Clay Dispersions

2016 ◽  
Vol 881 ◽  
pp. 212-217
Author(s):  
Karine Castro Nóbrega ◽  
Luciana Viana Amorim
Keyword(s):  
Bentonite Clay ◽  
Average Diameter ◽  
Clay Sample ◽  
X Ray Diffraction ◽  
X Ray ◽  
Low Viscosity ◽  
Fixed Concentration ◽  
Two Samples ◽  
Filtration Properties

This project had as objective to evaluate the influence of the content and particle size of the calcite in the filtration properties of clay dispersions. For that, it was realized the characterization of a bentonite clay sample using X-Ray Fluorescence and X-Ray Diffraction. In addition, two samples of calcite (CaCO3) were granulometrically analyzed by Laser Diffraction. The dispersions were prepared with fixed concentration of clay (10g) and different concentrations of carboxymethylcellulose of low viscosity (0 to 2g), and calcite (0 to 20g). After 24 hours of repose, it were determined the filtration properties (filtrate volume (FV), mudcake thickness (h), and mudcake permeability (k)). It was observed that the lowest filtrate volume was acquired using CaCO3 sample with the lowest average diameter, and, also, a bigger concentration of calcite was not able to promote a considerable reduction of the filtrate.

Fabrication and Characterization of Poly(Vinyl Alcohol)/Chitosan Blend Electrospun Nanofibrous Membrane

2016 ◽  
Vol 701 ◽  
pp. 265-269 ◽  
Author(s):  
Md Shariful Islam ◽  
Fayeka Mansura ◽  
Amalina Muhammad Afifi ◽  
Bee Chin Ang
Keyword(s):  
Vinyl Alcohol ◽  
Average Diameter ◽  
Electrospinning Process ◽  
Poly Vinyl Alcohol ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray ◽  
Fabrication And Characterization ◽  
The Ideal

In this study, poly (vinyl alcohol) / chitosan blend nanofibers were synthesized by electrospinning process in different polyvinyl alcohol and chitosan weight ratios. The nanofibers were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) and X-ray diffraction (XRD). SEM images showed that, 50:50 poly vinyl alcohol/chitosan blend was the ideal ratio for producing beadless nanofiber. The average diameter of the beadless nanofiber was found to be 123 nm. FTIR and XRD results demonstrated the presence of intermolecular hydrogen bonding between the molecules of poly vinyl alcohol and chitosan.

Solvothermal Synthesis and Characterization of Hierarchical Calcium Carbonate Spheres

2014 ◽  
Vol 912-914 ◽  
pp. 318-320 ◽  
Author(s):  
Yin Xia Chen ◽  
Xian Bing Ji ◽  
Yu Lian Quan
Keyword(s):  
Calcium Carbonate ◽  
Solvothermal Synthesis ◽  
Mixed Solvents ◽  
Average Diameter ◽  
Synthesis And Characterization ◽  
Solvothermal Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Experimental Parameters

Hierarchical calcium carbonate spheres composed of nanoparticles has been successfully synthesized via a solvothermal process. The structures are fabricated by the reaction of Ca (CH3COO)2with (CO(NH2)2) at 110 °C in diethylene glycolwater mixed solvents in the presence of polyvinylpyrrolidone. The as-prepared products were characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The characterization results revealed that the average diameter of the hierarchical calcium carbonate spheres is about 5 μm, and the size of the nanoparticals range from 50 to 100 nm. In addition, a small amount of bundle-like aragonite calcium carbonate is also obtained in the experimental parameters.

Synthesis and characterization of polyether structure carbon nitride

2004 ◽  
Vol 19 (6) ◽  
pp. 1736-1741 ◽  
Author(s):  
Tiancheng Mu ◽  
Jun Huang ◽  
Zhimin Liu ◽  
Buxing Han ◽  
Zhonghao Li ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
Carbon Nitride ◽  
Average Diameter ◽  
Building Blocks ◽  
Spherical Particles ◽  
X Ray Diffraction ◽  
Substantial Evidence ◽  
X Ray ◽  
Prepared Material

Carbon nitride powder with an atomic N/C ratio of 1 has been prepared by reaction of cyanuric chloride with sodium metal. X-ray diffraction, Fourier transform infrared spectra, and x-ray photoelectron spectroscopic data provide substantial evidence for a graphite-like sp2-bonded structure composed of building blocks of s-triazine rings bridged by carbon-carbon atoms in the bulk carbon nitride. The electron-microscopy results reveal that the material is spherical particles with an average diameter of 50 nm. The optical properties and thermal stability are also characterized. Based on the experimental results, it is deduced that the structure of as-prepared material carbon nitride has polyether structure.

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