Topic
Thermal decomposition
About: Thermal decomposition is a research topic. Over the lifetime, 34363 publications have been published within this topic receiving 573658 citations. The topic is also known as: thermolysis.
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TL;DR: Upconverting lanthanide-doped nanocrystals were synthesized via the thermal decomposition of trifluoroacetate precursors in a mixture of oleic acid and octadecene to provide highly luminescent nanoparticles through a simple one-pot technique with only one preparatory step.
Abstract: Upconverting lanthanide-doped nanocrystals were synthesized via the thermal decomposition of trifluoroacetate precursors in a mixture of oleic acid and octadecene. This method provides highly luminescent nanoparticles through a simple one-pot technique with only one preparatory step. The Er3+, Yb3+ and Tm3+, Yb3+ doped cubic NaYF4 nanocrystals are colloidally stable in nonpolar organic solvents and exhibit green/red and blue upconversion luminescence, respectively, under 977 nm laser excitation with low power densities.
955 citations
TL;DR: Both structural and thermal characteristics suggest that kraft pine lignin (L1) would be a better phenol (P) substitute in the synthesis of lign in-phenol-formaldehyde (LPF) resins, as it presents higher amounts of activated free ring positions, higher MW and higher thermal decomposition temperature.
933 citations
TL;DR: In the liquefaction process, the micellar-like broken down fragments produced by hydrolysis are degraded to smaller compounds by dehydration, dehydrogenation, deoxygenation and decarboxylation as mentioned in this paper.
904 citations
TL;DR: It is found consistently that under ambient conditions the copper deficient Cu(1.97)S (djurleite) is more stable than Cu(2) S (chalcocite) and this may be the reason behind the traditionally known instability of the bulk Cu( 2)S/CdS interface.
Abstract: Cu2−xS (x = 1, 0.2, 0.03) nanocrystals were synthesized with three different chemical methods: sonoelectrochemical, hydrothermal, and solventless thermolysis methods in order to compare their common optical and structural properties. The compositions of the Cu2−xS nanocrystals were varied from CuS (covellite) to Cu1.97S (djurleite) through adjusting the reduction potential in the sonoelectrochemical method, adjusting the pH value in the hydrothermal method and by choosing different precursor pretreatments in the solventless thermolysis approach, respectively. The crystallinity and morphology of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM), which shows that most of them might be of pure stoichiometries but some of them are mixtures. The obtained XRDs were studied in comparison to the XRD patterns of previously reported Cu2−xS. We found consistently that under ambient conditions the copper deficient Cu1.97S (djurleite) is more stable than Cu2S (chalco...
870 citations
TL;DR: In this paper, it was shown that the amount of char and the incombustible gases that may be formed in thermal decomposition are very important quantitative measures of flame resistance.
855 citations