نتایج جستجو برای: thermogravimetry analysis

تعداد نتایج: 2824606  

Journal: :Journal of Thermal Analysis and Calorimetry 2023

Abstract The thermal decomposition of calcium propionate, in inert and oxidative atmospheres, has been investigated by thermogravimetry combined with infrared evolved gas analysis; the main volatiles formed during have identified. intermediate final products characterized spectroscopy, x-ray diffraction, elemental analysis scanning electron microscopy. different mechanisms involved are discusse...

2015
Fabrice Leardini Lorenzo Massimi Eduardo Flores-Cuevas Jose Francisco Fernández Jose Ramon Ares Maria Grazia Betti Carlo Mariani

Ethane 1,2-diamineborane (EDAB) is an alkyl-containing amine-borane adduct with improved hydrogen desorption properties as compared to ammonia borane. In this work, it is reported the high temperature thermolytic decomposition of EDAB. Thermolysis of EDAB has been investigated by concomitant thermogravimetry-differential thermal analysis-mass spectrometry experiments. EDAB shows up to four H₂ d...

برکت, سیدمسعود, خواجه لکزای, محمد, شجاع رضوی, رضا,

Precipitation has always been one of the important methods in the preparation of ceramic nanopowders. In this study, the most important parameters, ageing time and concentration parameters, have been studied. Yttrium oxide (Yttria) nanopowder was synthesized by precipitation method. Yttria micropowder and ammonium hydrogen carbonate were used as precursor materials. The study involved aging tim...

Journal: :علوم و تکنولوژی پلیمر 0
محمدعلی سمسارزاده محمد توکلی ویدا پورسرخ آبی

polyethylene imide was synthesized from the reaction of high density polyethylene grafted maleic anhydride (pe-g-ma) and 1,4-diaminobutane in boiling xylene. the chemical compositions of the reaction products were examined by fourier transform infrared spectroscopy. different conditions and parameters like the effect of temperature, time, monomer concentration and oxygen on the extent of reacti...

Journal: :Journal of Japan Oil Chemists' Society 1987

Journal: :Dalton transactions 2016
Helge Reinsch Renjith S Pillai Renée Siegel Jürgen Senker Alexandra Lieb Guillaume Maurin Norbert Stock

The new aluminium based metal-organic framework [Al(OH)(O2C-C4H8-CO2)]·H2O denoted as Al-MIL-53-ADP-lp (lp stands for large pore) was synthesised under solvothermal conditions. This solid is an analogue of the archetypical aluminium terephthalate Al-MIL-53 based on the aliphatic single-chain linker molecule adipic acid (H2ADP, hexanedioic acid). In contrast to its aromatic counterparts, Al-MIL-...

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