(a) Timing scheme of conventional pump-probe kinetic experiments. (b) Principle of ST-PLIFI (shock tube/pulsed laser-induced fluorescence imaging) method developed in this work. A one-dimensional fluorescence imaging by single laser shot provides a concentration-time profile.
Schematic diagram of ST-PLIFI apparatus.
Optical setup for LIF imaging.
Example of the pulsed LIF image and the time profile of OH-radical concentration: , , , and .
(a) A PLIF image observed in mixture and an [OH] time profile derived. Experimental conditions: , , and . (b) A PLIF image and an [OH] time profile observed in mixture. Experimental conditions: , , , and . The solid and dashed lines denote the results of the numerical simulation.
Arrhenius plot for in the high-temperature region. Filled circles and solid line: this work. Open triangles: Ref. 24. Open circles: Ref. 25.
Reactions and rate parameters used in the numerical simulations of the system.
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