Product screening of fast reactions in IR-laser-heated liquid water filaments in a vacuum by mass spectrometry

The Journal of Physical Chemistry. a
A CharvatBernd Abel

Abstract

In the present article a novel approach for rapid product screening of fast reactions in IR-laser-heated liquid microbeams in a vacuum is highlighted. From absorbed energies, a shock wave analysis, high-speed laser stroboscopy, and thermodynamic data of high-temperature water the enthalpy, temperature, density, pressure, and the reaction time window for the hot water filament could be characterized. The experimental conditions (30 kbar, 1750 K, density approximately 1 g/cm3) present during the lifetime of the filament (20-30 ns) were extreme and provided a unique environment for high-temperature water chemistry. For the probe of the reaction products liquid beam desorption mass spectrometry was employed. A decisive feature of the technique is that ionic species, as well as neutral products and intermediates may be detected (neutrals as protonated aggregates) via time-of-flight mass spectrometry without any additional ionization laser. After the explosive disintegration of the superheated beam, high-temperature water reactions are efficiently quenched via expansion and evaporative cooling. For first exploratory experiments for chemistry in ultrahigh-temperature, -pressure and -density water, we have chosen resorcinol as a benchm...Continue Reading

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Citations

Feb 24, 2016·The Journal of Physical Chemistry. a·Kensuke KomatsuJun-ya Kohno
Feb 21, 2009·Faraday Discussions·Oliver LinkBernd Abel
Jul 3, 2016·Analytical and Bioanalytical Chemistry·José VillatoroHans-Gerd Löhmannsröben
Dec 14, 2012·The Journal of Physical Chemistry. a·Jun-ya KohnoNobuteru Sasaki
Jan 3, 2007·Journal of Mass Spectrometry : JMS
May 30, 2012·Physical Chemistry Chemical Physics : PCCP·Olivia J MaselliMark A Buntine
Aug 8, 2014·Physical Chemistry Chemical Physics : PCCP·E Vöhringer-MartinezB Abel
Jul 10, 2019·Rapid Communications in Mass Spectrometry : RCM·Fabian KlennerSascha Kempf
May 26, 2007·The Journal of Physical Chemistry. a·Akira Terasaki

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