Decomposition kinetics, which applied to the two observed autoacceleratory regions, was best fitted to an Avrami-Erofeyev equation with an exponent of two. The activation energy determined for the first autoacc
The Arrhenius relation will not be observed above the temperature at which the decomposition or, as may occur for enzymes, inactivation of one or more of the reactants occurs (Tmax). Indeed, adherence to this relation at temperatures well above Tmax for most microorganisms has been used as ev...
2. Since a similar behavior is observed on a clean SiO2 surface and on a carbon-covered SiO2 surface, this behavior is not the result of partial decomposition of the adsorbed rubicene molecules.16 By assuming that the largest slope for high coverage is 1, one can calculate an initial ...
It is also found that the decomposition product CuCl may completely evaporate if the temperature is higher than its melting point, so the CuCl2 hydrolysis reaction should be operated below the melting point of CuCl (430 °C) to avoid the undesirable CuCl and Cl2 byproducts. A preliminary ...
small substituents and the main polymer chains40. Generally, due to its lower thermal stability compared to cellulose and lignin41, hemicellulose decomposition prevails at lower temperatures, such as in torrefaction. Therefore, a higher hemicellulose content results in more intense devolatilization and, ...
In order to prevent the lithium leaching and further reaction, a robust SEI is urgently needed. The second highlight uncovered here is the source of the flammable gas, such as H2. We showed that the initial H2 release is triggered by the SEI decomposition and the Li reaction with SEI-...
(Knauth1998), it is reasonable to assume that Ca2+and/or Mg2+were among the dissolved ions. If glycine was also present in the seawater, we can conclude that sea salt crusts, for example at hot volcanic coasts, prevented the thermal decomposition of the amino acid up to temperatures ...
The decomposition of a peroxide is endothermic and reversible. To make the production of radicals irreversible, initiators fragment (Figure 18). For example, AIBN decomposes to produce N2 and organic radicals, making the overall reaction exothermic and irreversible. Benzoyl peroxide decomposes into the...
Incidentally, the effect of the concentration of a chemical of the TD type on the rate of the exothermic decomposition reaction, in the early stages of the self-heating process, of the chemical is assumed to be of the zeroth order in the thermal explosion theory [1]. In other words, it...
In general, these means involve passing solid reactants through a heated, relatively restricted space, containing inert or reaction-compatible gases, at a rate determined by the desired reaction and the need to avoid decomposition of the desired product. For example, vertical tubular reactors having...