Výsledky vyhledávání

Kinetics of the Gas Phase Reaction of the Criegee Intermediate CH₂OO with SO₂ as a Function of Temperature

Autor: Onel, L, Lade, R, Mortiboy, J, Blitz, M, Seakins, P, Heard, DE, Stone, D

The kinetics of the gas phase reaction of the Criegee intermediate CH2OO with SO2 have been studied as a function of temperature in the range 223–344 K at 85 Torr using flash photolysis of CH2I2/O2/SO2/N2 mixtures at 248 nm coupled to time-resolved

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::541a43226480b893c53c0eb99cfcedb8

Zobrazit plný text záznamu

Production of HONO from heterogeneous uptake of NO₂ on illuminated TiO₂ aerosols measured by Photo-Fragmentation Laser Induced Fluorescence

Autor: Dyson, JE, Boustead, GA, Fleming, LT, Blitz, M, Stone, D, Arnold, SR, Whalley, LK, Heard, DE

The rate of production of HONO from illuminated TiO2 aerosols in the presence of NO2 was measured using an aerosol flow tube coupled to a photo-fragmentation laser induced fluorescence detection apparatus. The reactive uptake coefficient of NO2 to fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::dba9995b50cb1749e558e742660afc7f
https://eprints.whiterose.ac.uk/170807/1/acp-2020-1216.pdf

Zobrazit plný text záznamu

Kinetics of the Gas Phase Reactions of the Criegee Intermediate CH2OO with O3 and IO

Autor: Onel, L, Blitz, MA, Seakins, PW, Heard, DE, Stone, D

The kinetics of the gas phase reactions of the Criegee intermediate CH2OO with O3 and IO have been studied at 296 K and 300 Torr through simultaneous measurements of CH2OO, the CH2OO precursor (CH2I2), O3, and IO using flash photolysis of CH2I2/O2/O3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::39679a485b0cba8866f982bebb42136b
https://eprints.whiterose.ac.uk/163411/1/Onel_author_accepted_manuscript.pdf

Zobrazit plný text záznamu

Influence of aerosol copper on HO2 uptake: a novel parameterized equation

Autor: Song, H, Chen, X, Lu, K, Zou, Q, Tan, Z, Fuchs, H, Wiedensohler, A, Moon, DR, Heard, DE, Baeza-Romero, M-T, Zheng, M, Wahner, A, Kiendler-Scharr, A, Zhang, Y

Publikováno v: Atmospheric chemistry and physics 20(24), 15835-15850 (2020). doi:10.5194/acp-20-15835-2020
RUIdeRA. Repositorio Institucional de la UCLM
instname

Heterogeneous uptake of hydroperoxyl radicals (HO2) onto aerosols has been proposed to be a significant sink of HOx, hence impacting the atmospheric oxidation capacity. Accurate calculation of the HO2 uptake coefficient γHO2 is key to quantifying th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::98ea0ce33c32fba14573a4f1456bb972
https://hdl.handle.net/2128/27376

Zobrazit plný text záznamu

An intercomparison of CH3O2 measurements by Fluorescence Assay by Gas Expansion and Cavity Ring–Down Spectroscopy within HIRAC (Highly Instrumented Reactor for Atmospheric Chemistry)

Autor: Onel, L, Brennan, A, Gianella, M, Hooper, J, Ng, N, Hancock, G, Whalley, L, Seakins, PW, Ritchie, GAD, Heard, DE

Publikováno v: Atmospheric Measurement Techniques Discussions
Atmospheric Measurement Techniques

Simultaneous measurements of CH3O2 radical concentrations have been performed using two different methods in the Leeds HIRAC (Highly Instrumented Reactor for Atmospheric Chemistry) chamber at 295 K and in 80 mbar of a mixture of 3:1 He∕O2 and 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f534b8aa162f04704352d2e15ec0dbb2
https://eprints.whiterose.ac.uk/155818/1/amt-2019-405.pdf

Zobrazit plný text záznamu

Measurements of Low Temperature Rate Coefficients for the Reaction of CH with CH₂O and Application to Dark Cloud and AGB Stellar Wind Models

Autor: West, NA, Millar, TJ, Van De Sande, M, Rutter, E, Blitz, MA, Decin, L, Heard, DE

Rate coefficients have been measured for the reaction of CH radicals with formaldehyde, CH₂O, over the temperature range of 31–133 K using a pulsed Laval nozzle apparatus combined with pulsed laser photolysis and laser-induced fluorescence spectr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::f88df67c0cab2d51840d34208737643b
https://eprints.whiterose.ac.uk/151562/1/CH_CH2O_ApJ_Paper(1).pdf

Zobrazit plný text záznamu

Low temperature studies of the rate coefficients and branching ratios of reactive loss vs quenching for the reactions of ¹CH₂ with C₂H₆, C₂H₄, C₂H₂

Autor: Douglas, KM, Blitz, MA, Feng, W, Heard, DE, Plane, JMC, Rashid, H, Seakins, PW

© 2018 Elsevier Inc. The kinetics of the reactions of the first excited state of methylene, 1CH2, with C2H2, C2H4, and C2H6, has been measured over the temperature range 43–298 K by pulsed laser photolysis, monitoring 1CH2 removal by laser induced

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::be968b95e1168657a03fd9523f10081e

Zobrazit plný text záznamu

Production of HO₂ and OH radicals from near-UV irradiated airborne TiO₂ nanoparticles

Autor: Moon, DR, Ingham, T, Whalley, LK, Seakins, P, Baeza-Romero, MTT, Heard, DE

The production of gas-phase hydroperoxyl radicals, HO2, is observed directly from sub-micron airborne TiO2 nanoparticles (80% anatase and 20% rutile formulation) irradiated by 300 – 400 nm radiation. The rate of HO2 production as a function of O2 p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::08fe2c3e958102fbc4336e63e9cec6a2

Zobrazit plný text záznamu

A new method for atmospheric detection of the CH3O2 radical

Autor: Onel, L, Brennan, A, Seakins, PW, Whalley, L, Heard, DE

A new method for measurement of the methyl peroxy (CH3O2) radical has been developed using the conversion of CH3O2 into CH3O by excess NO with subsequent detection of CH3O by fluorescence assay by gas expansion (FAGE) with laser excitation at ca. 298

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4462f6c68144b1bf3dd5f54750e46459
https://www.atmos-meas-tech.net/10/3985/2017/

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání