Área de Química Física
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Kinetic and Products Study of the Atmospheric Degradation of trans-2-Hexenal with Cl Atoms
(American Chemical Society, 2022-09)The gas-phase reaction between trans-2-hexenal (T2H) and chlorine atoms (Cl) was studied using three complementary experimental setups at atmospheric pressure and room temperature. In this work, we studied the rate constant ... -
Evaluation of the daytime tropospheric loss of 2-methylbutanal
(European Geosciences Union [Society Publisher]Copernicus Publications [Commercial Publisher], 2022-03)Saturated aldehydes, e.g. 2-methylbutanal (2MB, CH3CH2CH(CH3)C(O)H), are emitted into the atmosphere by several biogenic sources. The first step in the daytime atmospheric degradation of 2MB involves gas-phase reactions ... -
Reactivity of 2-ethyl-1-hexanol in the atmosphere
(Royal Society of Chemistry, 2010-02)Rate coefficients at room temperature for the reaction of 2-ethyl-1-hexanol with OH and NO3 radicals and with Cl atoms have been determined in a 150 L PTFE chamber using GC-FID/SPME and FTIR as detection systems. The rate ... -
Reaction of OH radicals with CH3NH2 in the gas phase: experimental (11.7–177.5 K) and computed rate coefficients (10–1000 K)
(Royal Society of Chemistry, 2022-10)Nitrogen-bearing molecules, like methylamine (CH3NH2), can be the building blocks of amino acids in the interstellar medium (ISM). At the ultralow temperatures of the ISM, it is important to know its gas-phase reactivity ... -
Thiophene-Based Covalent Organic Frameworks: Synthesis, Photophysics and Light-Driven Applications
(MDPI, 2021-12-17)Porous crystalline materials, such as covalent organic frameworks (COFs), have emerged as some of the most important materials over the last two decades due to their excellent physicochemical properties such as their large ... -
Cinética en fase gas de CH 3 CHO con radicales OH entre 11,7 y 177,5 K
(Royal Society of Chemistry, 2020-08-14)Gas-phase reactions in the interstellar medium (ISM) are a source of molecules in this environment. The knowledge of the rate coefficient for neutral–neutral reactions as a function of temperature, k(T), is essential to ... -
An experimental study of the gas-phase reaction between Cl atoms and trans-2-pentenal: Kinetics, products and SOA formation
(Elsevier, 2021-03-10)The gas-phase reaction of trans-2-pentenal (T2P) with Cl atoms was studied at atmospheric pressure and room temperature. A rate coefficient of (2.56 ± 0.83) × 10-10 cm3 molecule-1 s-1 was obtained using the relative rate ... -
Understanding the Driving Mechanisms of Enhanced Luminescence Emission of Oligo(styryl)benzenes and Tri(styryl)-s-triazine
(Wiley, 2020-03-12)This work is focused on unraveling the mechanisms responsible for the aggregation-induced enhanced emission and solid-state luminescence enhancement effects observed in star-shaped molecules based on 1,3,5-tris(styryl)- benzene ... -
New Analytical Method for Determination of Phthalates in Wastewater by on Line LC-GC-MS Using the TOTAD Interface and Fraction Collector
(MDPI, 2021-05-24)There is an increasing demand for automatic, reliable and sensitive analytical methods for determining trace levels of phthalic acid esters (PAEs) in environmental samples. While on line coupled liquid chromatography-gas ... -
TOTAD interface: A review of its application for LVI and LC-GC
(De Gruyter, 2021-07-13)Large volume injection (LVI) in gas chromato graphy (GC) and online liquid chromatography-gas chro matography (LC-GC) are useful techniques for analyzing the compounds present at very low concentrations in complex samples ... -
Are the Portable Air Cleaners (PAC) really effective to terminate airborne SARS-CoV-2?
(Elsevier, 2021-09-01)The transmission of SARS-CoV-2 virus through aerosols has become an outstanding issue,where plenty of spread aspects are being analyzed. Portable Air Cleaners (PAC) with high-efficiency particulate air (HEPA) filters ... -
Temporal variability measurements of PM2.5 and its associated metals and microorganims on a suburban atmosphere in the central Iberian Peninsula
(Elsevier, 2020-12)A novel and multidisciplinary observational analysis of atmospheric components in the Central Iberian Peninsula is presented here. PM2.5 concentrations and both populations of cultivable and non-cultivable microorganisms and ... -
Gas-phase reactivity of OH radicals with ammonia (NH3) and methylamine (CH3NH2) at around 22 K
(Frontiers, 2021-12)IInterstellar molecules containing N atoms, such as ammonia (NH3) and methylamine (CH3NH2), could be potential precursors of amino acids like the simplest one, glycine (NH2CH2COOH). The gas-phase reactivity of these N-bearing ... -
On the mechanism of iodine oxide particle formation
(Royal Society of Chemistry, 2013-07-23)The formation of atmospherically relevant iodine oxides IxOy (x = 1,…,3, y = 1,…,7) has been studied experimentally using time-of-flight mass spectrometry combined with a soft ionisation source, complemented with ab initio ... -
A Probabilistic Approach to Student Workload: Empirical Distributions and ECTS
(Springer, 2018-03-07)The ECTS, European Credit Transfer System is now widely used throughout higher education institutions as it facilitates student mobility within Europe and the comparison of study programs and courses. Most European ... -
Formation of secondary organic aerosols from the ozonolysis of dihydrofurans.
(European Geosciences Union, 2017-02-14)In this work we report the study of the ozonolysis of 2,5-dihydrofuran and 2,3-dihydrofuran and the reaction conditions leading to the formation of secondary organic aerosols. The reactions have been carried out in a ... -
Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
(Elsevier, 2017-12)In this work we report the study of the ozonolysis of styrene and the reaction conditions leading to the formation of secondary aerosols. The reactions have been carried out in a Teflon chamber filled with synthetic air ... -
Atmospheric sink of styrene, α-methylstyrene, trans-β-methylstyrene and indene: Rate constants and mechanisms of the Cl atoms initiated degradation
(Elsevier, 2019-03-01)The kinetics and products of the oxidation of four aromatic compounds, i.e. styrene, α-methylstyrene, trans-β-methylstyrene and indene, with Cl atoms were determined at atmospheric pressure and room temperature. Kinetic ... -
Secondary organic aerosol formation from the ozonolysis and oh-photooxidation of 2,5-dimethylfuran
(Elsevier, 2021-01-15)In this study, the O3 and OH radical oxidation of 2,5-dimethylfuran (2,5-DMF) were investigated in two different chambers at (296±1) K and atmospheric pressure to examine secondary organic aerosol (SOA) formation. Results ...
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