Pyrolysis study of iso-propylamine with SVUV-photoionization molecular-beam mass spectrometry

Insights into the role of the H-abstraction reaction kinetics of amines in understanding their degeneration fates under atmospheric and combustion conditions

“…In the past few decades, extensive efforts have been dedicated to investigating the combustion chemistry of amines, especially MA, 114,134,136–147 while studies on EA, 148–152 DMA, 148,151,153,154 PA, 155–161 and larger amines 162 are still insufficient. The OH and H radicals are the most common and abundant reactive oxidants in the combustion process, as depicted in Fig.…”

A quantum chemical and kinetics study on the unimolecular reactions of fuel radicals formed during the oxidation of n‐propylamine

“…Table S1 (in the supporting information) summarizes the studies to date on the combustion of amine species containing two or more carbons in the carbon chain. [12][13][14][15][16][17][18][19][20] The combustion model of ethylamine proposed by Lucassen et al indicates that the reaction mechanism of amines begins with H-abstraction reactions. 12 This is followed by a β-scission reaction of the fuel radical as the main reaction pathway.…”

“…disclosed the selectivity and combustion reaction characteristics of n-propylamine, showing the substituent effect of the amino group results in a smaller bond dissociation energy for the C C bond α to the amino group. [15][16][17][18][19] In this study, we have investigated the amino group's substituent effect on the unimolecular reactions of fuel radicals. To accommodate amines with longer chain lengths, the fuel radicals formed from n-propylamine were selected for study, and the pressure dependence of rate constants of main reaction pathways were analyzed using the RRKM/ME analysis method.…”