Published in Nanomaterials
In the work the research on properties of an yttria nanopowder obtained by solution combustion synthesis (SCS) in terms of its application in ceramic technology is presented. In order to characterize the SCS reaction the decomposition of yttrium nitrate, glycine and their solution was investigated using differential thermal analysis coupled with FT...
Published in Biomass Conversion and Biorefinery
The growing concerns over the environmental challenges emanating from the use of fossil fuels continue to generate interest in finding competitive and sustainable alternatives. This study presents physicochemical characteristics, thermal decomposition profile and kinetics of a new Botryococcus sp. of microalga isolated from Endau-Rompin, Malaysia. ...
Published in Russian Journal of General Chemistry
Abstract—Electronic interactions associated with charge transfer complexes formation of iodine, chloranilic acid (H2CA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) with vitamin B1 have been studied spectrophotometrically. The accumulated data indicated formation of CT-complexes of the general formula [(VB1)(acceptor)n], (n = 1 or 2). The 1 ...
Published in Journal of Thermal Analysis and Calorimetry
The effect of different processing stages of dark and milk chocolate samples on their thermal properties was investigated. The ingredients of chocolates were investigated too. Thermal behavior was evaluated by means of thermogravimetry (TG) and first-derivative thermogravimetry (DTG). The measurements were made at a temperature range of 50–700 °C w...
ABSTRACT: The pelleting of forest and agricultural materials, mainly because many residues from both industries can be used in this process, has been an alternative in obtaining added value products to energy generation. Thus, the aim of this study was to evaluate the energy quality of the pellets produced from forest and agricultural residues as r...
Respecto de la presente edición, señalarque, variados y de gran actualidad son lostemas que se abordan en cada artículopresentado, ya sea en la modalidad deensayos o de resultados de investigación.De esta forma, tópicos tales como la“Reforma Laboral Argentina”, “Inclusión,Calidad y Equidad en la Educación deColombia”, “Políticas deInternacionalizac...
Published in Fibers and Polymers
A comprehensive study on different physico-chemical properties of banana fiber is presented in this communication. This has led to a better understanding of its structure and function. Studies were carried out for both inner and outer region of inflorescence stem. FESEM studies clearly indicated that the inner-wall of the micro tubules consisted of...
Published in Journal of Thermal Analysis and Calorimetry
The present study has investigated the complex mechanisms in the aluminum–titanium system with different percentages of titanium through a combination of thermal and X-ray analyses. Thermogravimetry, derivative thermogravimetric, X-ray diffraction, scanning electron microscope and transition electron microscope were used for characterization of the...
Published in Journal of Thermal Analysis and Calorimetry
Among the widespread pests belongs Hylotrupes bajulus, which attacks mostly wooden beams in the roof of the houses. Heat sterilisation of wood is used to kill all forms of pests (eggs, larvae, adults) in solid wood materials. We compared thermal stability of heat sterilised silver fir wood to larval frass in regard to fire safety. The samples were ...
Published in Journal of Thermal Analysis and Calorimetry
This study aims at evaluating the main hydration reactions of a type II Portland cement, when partially substituted by the fines of spent cracking catalyst (Epcat), during the first 28 days of hydration. Pastes prepared with a 0.5 water/(cementitious material) ratio up to 30 mass% substitution of cement by Epcat were analyzed after 4 and 24 h and a...
