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Page • Complex chemical reaction networks like those that occur in combustion and in atmospheric chemistry can contain thousands of interlocked chemical transformations. Frequently, important aspects of the overall chemistry depend on a few key reactions, for example, the chain-branching reactions that increase the number of reactive free radicals and drive hydrocarbon...

Page • Technical Details Figure 1 Oxidation turns hydrocarbons into water and carbon dioxide through an interconnected web of reactions. The hydrocarbon’s molecular structure and the conditions of oxidation, such as temperature, pressure, and composition, profoundly impact phenomena ranging from air quality to engine performance. In this aspect of our chemical physics...

Page • Technical Details Figure 1 Research and development efforts both inside and outside the Labs are aimed at providing a fundamental understanding of cryogenic hydrogen dispersion and flames. Experiments are used to validate models that are, in turn, used to inform safety, codes and standards for infrastructure that uses liquid hydrogen,...

Page • Figure 1 Figure 1 Shown here is the virtually accessible laser-heated stagnation flow reactor (LSFR) for characterizing redox chemistry of materials under extreme conditions. The LSFR is equipped with a solid-state laser to replicate the high energy flux and rapid heating rates that materials encounter in a concentrating solar reactor....

Page • Sensitive cavity-enhanced absorption spectrometry for gas-phase chemical kinetics Figure 1 (Left) SULI intern Zachary Decker operates the time-resolved broadband cavity-enhanced absorption spectrometer under the mentorship of PI Leonid Sheps. (Right) The time-resolved UV absorption spectrum of Criegee intermediate CH2OO Technical Details Absorption of photons from the IR to the UV...