Dr
Musahid Ahmed
(Chemical Sciences Division, Lawrence Berkeley National Laboratory)
29/09/2014, 14:00
Talk
Tunable vacuum ultraviolet radiation generated at a synchrotron provides a universal, yet selective scalpel to decipher molecular information in complex chemical systems when coupled to mass spectrometry. Used in conjunction with theory, this provides profound insight into proton transfer mechanisms, solvation and electronic structure in organic molecules and clusters. New results from...
Prof.
G. Barney Ellison
(University of Colorado)
29/09/2014, 14:25
Talk
The study of the pyrolysis of complex fuels is carried out in a heated, CW micro-reactor. Reactions are studied in a resistively-heated SiC microtubular (0.66 mm i.d. x 2.5 cm) flash pyrolysis flow reactor from 1000 – 1800 K. The standard reactor operating conditions of 280 sccm He flow have been studied by computational fluid dynamics. [International J. Phys. Chem. 2014, (submitted)]. The gas...
Prof.
Frédérique Battin-Leclerc
(CNRS)
29/09/2014, 14:50
Talk
The low-temperature oxidation of the five hexane isomers (n-hexane, 2-methyl-pentane, 3 methyl-pentane, 2,2-dimethyl-butane and 2,3-dimethyl-butane) was studied in a jet-stirred reactor (JSR) at atmospheric pressure under stoichiometric conditions between 550 and 1000 K. The evolution of reactant and product mole fraction profiles were recorded as a function of the temperature using two...
Mrs
Anne Rodriguez
(CNRS-LRGP Nancy France)
29/09/2014, 15:15
Talk
Due to the current issue concerning the growing primary energy demand, not to mention a general interest in sustainable development, bio-fuels became very fashionable in recent years. They are subject to a lot of research on combustion with the characterization of the reactivity and pollutant emissions. The molecule of dimethyl ether (DME) has led to a strong interest in the field of...
Dr
Jean-Christophe Loison
(CNRS - Université de Bordeaux)
29/09/2014, 15:35
Talk
The N(4S) + CH3 reaction is an important reaction for Titan’s atmosphere as well as in evolved dense molecular clouds and in protoplanetary disks, leading to HCN through various reactions involving H2CN and CH2 radicals. We have studied the kinetics of the N + CH3 reaction between 147 K and 440 K using a fast flow reactor (300 K – 440 K) and the CRESU technique (147 K). The reactants and...
Prof.
Toshinori Suzuki
(Kyoto University)
29/09/2014, 16:30
Talk
We present time-resolved X-ray absorption spectroscopy (TRXAS) of aqueous solutions using a hard X-ray free electron laser (SACLA: SPring-8 Angstrom Compact Free Electron Laser). An aqueous solution of [Fe(III)(C2O4)3]3- is photoexcited by a femtosecond 266 nm pulse, and transient X-ray absorption spectra were measured as a function of pump-probe delay time. The Fe K-edge exhibited an...
Dr
Shih-Huang Lee
(National Synchrotron Radiation Research Center)
29/09/2014, 16:55
Talk
Carbon is the fourth most abundant element in our solar system and in the universe. Hydrocarbon chemistry plays an important role in planetary atmospheres, interstellar environments, and fuel combustions. Thus, the study of dynamics of hydrocarbon reactions can facilitate the understanding of stellar evolution, air pollution, etc. A crossed molecular-beam apparatus combined with synchrotron...
Dr
Adam Trevitt
(University of Wollongong)
29/09/2014, 17:20
Talk
Using a combination of experimental and computational techniques, we are examining ortho-substituted phenyl + O2 reactions to provide a useful framework for understanding aryl radical oxidation in combustion environments. Our results show that ortho-substituted phenyl radicals have access to unique chemical pathways, compared to the meta and para counterparts, due to the proximity of nearby...
Dr
Yuyang Li
(University of Science and Technology of China)
29/09/2014, 17:45
Talk
Aromatic hydrocarbons are a major component family in petroleum-based transportation fuels and their surrogate fuels, and are also key precursors of soot. The benzene ring structures of aromatic hydrocarbons result in complex intermediate pools in their combustion, especially the great amount of large free radicals and isomers, making aromatics combustion one of the most complicated targets...
