Microwave Synthesis and Characterization of Europium Complexes with Cinnamic Acid and 2, 2' –Bipyridine

2013 ◽  
Vol 670 ◽  
pp. 106-109 ◽  
Author(s):  
X.J. Wang ◽  
X.C. Zhou

A novel material synthesis technique, microwave process was investigated for the production of phosphor powders. In this study, we have developed a new method to product phosphor powders, and applied this process into one materials fabrication. EuDL3 where L is cinnamic acid (C6H5CH = CHCOOH, HL), D = 2, 2' – Bipyridine (bipy) phosphor powders were successfully synthesized by microwave process. The process takes only 24 min to obtain phosphor powders. The resultant phosphor powders were investigated by TG – DTA, IR, luminescence spectroscopy, and scanning electron microscope (SEM).

2010 ◽  
Vol 663-665 ◽  
pp. 922-925
Author(s):  
Man Hua Wan ◽  
Xiao Hong Liu

A novel material synthesis technique, microwave process was investigated for the production of phosphor powders. In this study, we have developed a new method to product phosphor powders, and applied this process into two materials fabrication. EuDL3 where L is cinnamic acid (C6H5CH = CHCOOH, HL), D = 2, 9-dimethyl-1, 10-phenantroline (dmp), or 2, 2'-bipyridine (bipy) phosphor powders were successfully synthesized by microwave process. The process takes only 24 min to obtain two phosphor powders. The process takes only 24 min to obtain two phosphor powders. The resultant phosphor powders were investigated by TG-DTA, IR, luminescence spectroscopy, and scanning electron microscope (SEM). The results revealed that the two materials is significant different, compared to micrographs of scanning electron microscope (SEM).


2012 ◽  
Vol 465 ◽  
pp. 76-79 ◽  
Author(s):  
Shuang Zhan ◽  
Xia Li

The novel Y2O3 nanoflowers were synthesized through a facile hydrothermal method without using any catalyst or template. The phase composition and the microstructure of as-prepared products were characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) as well as Fourier transform infrared spectrum. The formation mechanism for the Y2O3 flowers has been proposed.


2008 ◽  
Vol 55-57 ◽  
pp. 637-640 ◽  
Author(s):  
Pattanasuk Chamninok ◽  
P. Kasian ◽  
Pichet Limsuwan ◽  
Udom Tipparach ◽  
S. Samran ◽  
...  

Nanostructured materials were synthesized by thermal evaporation process using silicon dioxide and carbon from coconut shell charcoal or graphite mixed with GeO2 by the ratio of 5:1:1 at temperature 1200 oC in one atmosphere of nitrogen for 3 hours. The nanostructured materials were characterized by the stereo microscope (image analyzer) and scanning electron microscope. The diameters of nanowires vary from 10 nm to 50 nm and length of several 10 micrometers. Length of nanorods was around 15 micrometers and diameters vary from 10 nm to 100 nm.


2014 ◽  
Vol 575 ◽  
pp. 175-179 ◽  
Author(s):  
Supakorn Pukird ◽  
Dheerachai Polsongkram ◽  
Suttinart Noothongkeaw ◽  
Khanidtha Jantasom ◽  
Ki Seok An

CuO/SnO2 nanocomposites materials were prepared by solution coprecipitation process using CuO nanowires-rods and SnO2 nanowires mixture as a starting materials. The mixture materials were put in beaker glass with distilled water and magnetic stering at 90 oC for 3 h. The mixture materials were filtered and heated at 980 oC for 20 h. The prepared products were investigated by FE scanning electron microscope (FESEM), X-rays photoemission spectroscopy (XPS) and X-ray driffraction technique (XRD). The results showed nanocomposites structures which consisting of CuO and SnO2 phase.


2011 ◽  
Vol 233-235 ◽  
pp. 623-626 ◽  
Author(s):  
Ling Xin ◽  
Bo Liu ◽  
Jiu Hong Ai ◽  
Jian Cheng Deng

Novel netlike nano-TiO2 was successfully prepared using polylatic acid (PLA) as a new template, and in particular, it was recyclable as photocatalyst. The products obtained at various temperatures were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and powder X-ray diffraction (XRD). Besides, the products have an excellent photocatalysis to methyl orange (MO) and methylene blue (MB).


2011 ◽  
Vol 266 ◽  
pp. 204-208 ◽  
Author(s):  
De Liang Chen ◽  
He Jing Wen ◽  
Rui Zhang ◽  
Xin Jian Li

Tungsten (W) micro-/nanoparticles were synthesized by thermally treating tungstate-based inorganic-organic hybrid nanobelts with a lamellar structure or the mixture of WO3 nanoplates and C6H12O6 in an Ar flow at 1000-1200 oC for 2-6 h. Phase compositions and morphologies of the W particles obtained were characterized by powder X-ray diffraction and scanning electron microscope.


2021 ◽  
Vol 48 (3) ◽  
Author(s):  
Ahmad Al-Hamdan ◽  
◽  
Ahmad Al-Falah ◽  
Fawaz Al-Deri ◽  
◽  
...  

Usually, thiophene and its derivatives are polymerized by chemical and electrochemical methods. In this paper, thiophene-2-carbaldehyde was polymerized by hydrochloric acid as a catalyst in alcohol as a solvent. The resulting polymer was characterized by (FT/IR, 1H-NMR, EDX, and XPS) to determine the polymer structure. The resulting polymer was scanned by scanning electron microscope (SEM) for its morphological properties. We found the polymer consisting of spherical particles with a rough surface (average diameters of 127 nanometers) that clump together and form clusters.


2012 ◽  
Vol 268-270 ◽  
pp. 262-265
Author(s):  
Jun Song Yang

By using a novel terpyridine-based dye (4-(4-2-[dimethyl4,4'-(phenylazanediyl) dibenzoate]phenyl)-2,2:6,2-terpyri-dine(L)) as a surface stabilizing agent, novel dye-capped ZnS were obtained. The photophysical properties of these dye-capped ZnS have been investigated experimentally. These hybrid particles (ZnS/L) aggregate a large spherical structure observed by scanning electron microscope (SEM) exhibiting novel luminescent properties, which differ from those of the pure L.


Author(s):  
R. F. Schneidmiller ◽  
W. F. Thrower ◽  
C. Ang

Solid state materials in the form of thin films have found increasing structural and electronic applications. Among the multitude of thin film deposition techniques, the radio frequency induced plasma sputtering has gained considerable utilization in recent years through advances in equipment design and process improvement, as well as the discovery of the versatility of the process to control film properties. In our laboratory we have used the scanning electron microscope extensively in the direct and indirect characterization of sputtered films for correlation with their physical and electrical properties.Scanning electron microscopy is a powerful tool for the examination of surfaces of solids and for the failure analysis of structural components and microelectronic devices.


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