Publication about this research Z Wang DM PopolanVaida B Chen K Moshammer SY Mohamed H Wang S Sioud MA Raji K KohseHöinghaus N Hansen P Dagaut SR Leone and SM Sarathy ID: 796935
Download The PPT/PDF document "Illustration of the jet-stirred reactor ..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Illustration of the jet-stirred reactor used to generate the highly oxygenated molecules (upper right) used in this ex-periment. (Courtesy of Ahmed Najjar)
Publication about this research: Z. Wang, D.M. Popolan-Vaida, B. Chen, K. Moshammer, S.Y. Mohamed, H. Wang, S. Sioud, M.A. Raji, K. Kohse-Höinghaus,
N. Hansen, P. Dagaut, S.R. Leone, and S.M. Sarathy, PNAS 114, 13102 (2017). Work was performed at Lawrence Berkeley National Laboratory, ALS Beamline 9.0. Operation of the ALS is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences program.
Unraveling the Complexities of Auto-Oxidation
Scientific Achievement
Researchers directly observed the formation of highly oxygenated molecules—the elusive intermediate products of auto-oxidation reactions relevant to combustion and atmospheric chemistry.
Significance and Impact
A better understanding of auto-oxidation reaction mechanisms could lead to better engines, less air pollution, and improved climate models.
Research Details
Identities of the highly reactive intermediates were determined using synchrotron-based, tunable vacuum-ultraviolet (VUV) mass spectrometry.
Results suggest a generalized reaction mechanism in which at least three stages of sequential oxygen attachments can occur; current combustion models assume just one or two.