Automated reaction kinetics of gas-phase organic species over multiwell potential energy surfaces

J Zádor, C Martí, R Van de Vijver… - The Journal of …, 2023 - ACS Publications
Automation of rate-coefficient calculations for gas-phase organic species became possible
in recent years and has transformed how we explore these complicated systems …

Insights into constraining rate coefficients in fuel oxidation mechanisms using genetic algorithm optimization

M Demireva, L Sheps, N Hansen - Energy & Fuels, 2023 - ACS Publications
Accurate fuel oxidation mechanisms can enable predictive capabilities that aid in advancing
combustion technologies. High-level computational kinetics can yield reasonable rate …

Complete reactants-to-products observation of a gas-phase chemical reaction with broad, fast mid-infrared frequency combs

N Hoghooghi, P Chang, SEM Burch, R Shaik… - arXiv preprint arXiv …, 2023 - arxiv.org
Molecular diagnostics are a primary tool of modern chemistry, enabling researchers to map
chemical reaction pathways and rates to better design and control chemical systems. Many …

GHz repetition rate mid-infrared frequency comb spectroscopy of fast chemical reactions

N Hoghooghi, P Chang, S Egbert, M Burch, R Shaik… - Optica, 2024 - opg.optica.org
Molecular diagnostics are a primary tool of modern chemistry, enabling researchers to map
chemical reaction pathways and rates to better design and control chemical systems. Many …

Time-resolved quantification of key species and mechanistic insights in low-temperature tetrahydrofuran oxidation

M Demireva, K Au, N Hansen, L Sheps - Physical Chemistry Chemical …, 2024 - pubs.rsc.org
We investigate the kinetics and report the time-resolved concentrations of key chemical
species in the oxidation of tetrahydrofuran (THF) at 7500 torr and 450–675 K. Experiments …

New Instrument for Time-Resolved OH and HO2 Quantification in High-Pressure Laboratory Kinetics Studies

L Sheps, K Au - The Journal of Physical Chemistry A, 2024 - ACS Publications
We have constructed a new time-resolved high-pressure fluorescence assay by gas
expansion (HP-FAGE) apparatus, optimized for the detection of OH and HO2 radicals in …

Probing O2-dependence of cyclopentyl reactions via isomer-resolved speciation

AW Hill, DA Moore, NS Dewey, SW Hartness… - Proceedings of the …, 2024 - Elsevier
Modeling chemical kinetics relevant to low-temperature combustion requires complete
description of reactions involving critical species such as hydroperoxyalkyl radicals, Q˙ OOH …

Enabling High-Temperature Measurements with Frequency Comb Laser and Spectral Database Development

SC Egbert - 2024 - search.proquest.com
From characterizing hypersonic combustion to monitoring urban air quality, absorption
spectroscopy is a powerful optical diagnostic that can non-intrusively measure velocity …