نتایج جستجو برای: x ray diffraction pattern xrd

تعداد نتایج: 1027545  

A. Dinesh Karthik K. Geetha,

A simple method has been employed to synthesize Copper and Copper oxide nanoparticles from Copper (II) succinate precursor by thermal decomposition method using oleylamine as a capping agent. The particles synthesized with oleylamine and triphenylphosphine were well dispersed nanoparticles obtained from X-ray Diffraction (XRD). The Synthesized copper nanoparticles were characterized by UV-Visib...

A. Dinesh Karthik K. Geetha,

A simple method has been employed to synthesize Copper and Copper oxide nanoparticles from Copper (II) succinate precursor by thermal decomposition method using oleylamine as a capping agent. The particles synthesized with oleylamine and triphenylphosphine were well dispersed nanoparticles obtained from X-ray Diffraction (XRD). The Synthesized copper nanoparticles were characterized by UV-Visib...

2013
Steve J. Chipera David L. Bish

Fitting of full X-ray diffraction patterns is an effective method for quantifying abundances during X-ray diffraction (XRD) analyses. The method is based on the principal that the observed diffraction pattern is the sum of the individual phases that compose the sample. By adding an internal standard (usually corundum) to both the observed patterns and to those for individual pure phases (standa...

Journal: :international journal of nano dimension 0
z. rahmani department of chemistry, takestan branch, islamic azad university,takestan , iran. sh. ghamami department of chemistry, faculty of science, imam khomeini international university, qazvin, iran.

in this research nanoparticles of nickel (ii) chloride were synthesized and characterized using fourier transform infrared (ft-ir) spectra. nanoparticles of nickel (ii) chloride were prepared by using of ball mill device. a ball mill is one kind of grinding machine, and it is a device in which media balls and solid materials (the materials to be ground) are placed in a container. in the researc...

Journal: :Journal of synchrotron radiation 2012
Pilar Ferrer Iván da Silva Juan Rubio-Zuazo Belén F Alfonso Camino Trobajo Sergei Khainakov Jose R Garcia Santiago Garcia-Granda Germán R Castro

A portable powder-liquid high-corrosion-resistant reaction cell has been designed to follow in situ reactions by X-ray powder diffraction (XRD) and X-ray absorption spectroscopy (XAS) techniques. The cell has been conceived to be mounted on the experimental stations for diffraction and absorption of the Spanish CRG SpLine-BM25 beamline at the European Synchrotron Radiation Facility. Powder reac...

2015
Reza Mahmoodian Rosiyah Yahya Ali Dabbagh Mohd Hamdi Mohsen A. Hassan Amitava Mukherjee

A novel method is proposed to study the behavior and phase formation of a Si+C compacted pellet under centrifugal acceleration in a hybrid reaction. Si+C as elemental mixture in the form of a pellet is embedded in a centrifugal tube. The pellet assembly and tube are exposed to the sudden thermal energy of a thermite reaction resulted in a hybrid reaction. The hybrid reaction of thermite and Si+...

2017
Woon Bae Park Jiyong Chung Jaeyoung Jung Keemin Sohn Satendra Pal Singh Myoungho Pyo Namsoo Shin Kee-Sun Sohn

A deep machine-learning technique based on a convolutional neural network (CNN) is introduced. It has been used for the classification of powder X-ray diffraction (XRD) patterns in terms of crystal system, extinction group and space group. About 150 000 powder XRD patterns were collected and used as input for the CNN with no handcrafted engineering involved, and thereby an appropriate CNN archi...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Yuko Nishimoto Yoichi Kaneki Akira Kishi

A simultaneous low-temperature X-ray powder-diffractometric (XRD)-DSC technique was applied to the solid state and melting process of frozen aqueous solutions of 2-propanol. 1H NMR spectra were also obtained at low temperatures. The chemical shifts of the CH3 proton and the CH proton can be classified into four temperature regions: higher than -20 degrees C, around -20 degrees C, -50 to -20 deg...

2016
Zoran Ristanović Jan P. Hofmann Marie‐Ingrid Richard Tao Jiang Gilbert A. Chahine Tobias U. Schülli Florian Meirer Bert M. Weckhuysen

Structure-activity relationships in heterogeneous catalysis are challenging to be measured on a single-particle level. For the first time, one X-ray beam is used to determine the crystallographic structure and reactivity of a single zeolite crystal. The method generates μm-resolved X-ray diffraction (μ-XRD) and X-ray excited optical fluorescence (μ-XEOF) maps of the crystallinity and Brønsted r...

Journal: :international journal of nanoscience and nanotechnology 2015
m. najafi h. haratizadeh

europium (eu) doped zno microsphere based nano-sheets were synthesized through hydrothermal method. effects of different concentrations of europium on structural and optical properties of zno nano-sheets were investigated in detail. prepared un-doped and eu-doped zno samples were characterized using x-ray diffraction (xrd), energy dispersive x-ray spectroscopy (edx), scanning electron microscop...

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