نتایج جستجو برای: thermogravimetric analysis tga

تعداد نتایج: 2828238  

2013
Mohd Anis

The high optical transparency glycine maelate crystals were grown by slow evaporation technique at room temperature. The grown crystal was subjected to optical and thermal studies. The optical studies ascertained high optical transparency and cut off wavelength was found to be 361 nm imperative for nonlinear applications. The optical constants, extinction coefficient, refractive index, optical ...

Journal: :Journal of chromatographic science 2010
Ye Wang Tao Zhu Kyung Ho Row

A new high-performance liquid chromatography (HPLC) stationary phase was firstly synthesized based on the ionic liquid 2-ethyl-4-methylimidazole chloride. And the performances of the resulting stationary phase were determined by Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA), and (13)C nuclear magnetic resonance (NMR) spectroscopy. The retention characteristics of the resu...

2016
Jijiang Xie Fuxing Sun Chunrui Wang Qikun Pan

The stabilities and hydrocarbon/fluorocarbon sorption properties of a zeolite-like metal-organic framework (MOF) Zn(hfipbb) with fluorinated channels has been studied. By the combination of thermogravimetric analysis (TGA) and powder X-ray diffraction (PXRD) measurements, we confirm that Zn(hfipbb) has exceptionally high hydrothermal and thermal stabilities. The adsorption behaviors of water an...

2012
Damian C. Onwudiwe Peter A. Ajibade

The thermal decomposition of Zn(II), Cd(II) and Hg(II) complexes of N-ethyl-N-phenyl and N-butyl-N-phenyl dithiocarbamates have been studied using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The products of the decomposition, at two different temperatures, were further characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy ...

Journal: :Dalton transactions 2011
Zaizhu Lou Baibiao Huang Peng Wang Zeyan Wang Xiaoyan Qin Xiaoyang Zhang Hefeng Cheng Zhaoke Zheng Ying Dai

The near-spherical AgCl micro-crystals were prepared by an ionic liquids-assisted hydrothermal method. The influence of ionic liquids (C(x)MimCl x = 4, 8, 12, 16) on (001) facet growth of AgCl was studied systemically. The composition of the as-prepared samples was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA) and FTIR spectra. The morphological structures were char...

2015
Mahendra Kumar Trivedi Gopal Nayak Khemraj Bairwa Snehasis Jana

p-Chlorobenzophenone (p-CBP) is the important chemical intermediate used for the synthesis of several pharmaceutical drugs like fenofibrate, cetirizine, alprazolam, and benzodiazepine. The aim of this study was set to evaluate the impact of biofield energy treatment on physicochemical and spectroscopic properties of p-CBP. The study was accomplished in two groups i.e. control and treated. The t...

2017
Priyanka Chand Venkat Reddy John G. Verkade Tong Wang David Grewell

The aim of this study was to demonstrate the use of thermogravimetric analysis (TGA) as a potential screening method for monitoring biodiesel production by transesterification of soybean oil with methanol. Soybean oil and commercially available biodiesel were mixed in varying proportions by weight as standards. In addition, mixtures of different biodiesel/soybean oil ratios were also created by...

2014
Cynthia Ghobril Benoît Heinrich Eric L. Dane Mark W. Grinstaff

The first synthesis of enantiopure glucose octyl ether polyamido-saccharides (GOE-PAS) with a defined molecular weight and narrow dispersity is reported using a controlled anionic ring-opening polymerization of a glucose-derived β-lactam sugar monomer possessing octyl ether chains. This new polymer structure is characterized by NMR, infrared (IR), optical rotation, gel permeation chromatography...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
Khalid Z Elwakeel Ahmed M Yousif

Thermally treated egg shell materials were prepared at different temperatures. The samples were investigated by means of FT-IR and thermogravimetric analysis (TGA). The adsorption behaviour of malathion on egg shell and its thermally treated samples was studied using batch method and gave uptake capacities up to 0.964 mmol/g. Adsorption kinetics as well as the adsorption isotherms were discusse...

2007
Hai M. Duong Erik Einarsson Jun Okawa Rong Xiang Shigeo Maruyama

An optical absorbance technique was used to study the burning temperature and burning mechanism of vertically aligned single-walled carbon nanotube (VA-SWNT) films. Use of this simple optical method is shown to be consistent with the standard thermogravimetric analysis (TGA) method, but can be applied to a very small amount of SWNTs. Experimental results indicate burning of the VA-SWNTs is not ...

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