14N/15N kinetic isotope effect in the association reaction ()++→+

Umemoto, Hironobu; Tanaka, Kunikazu; Oguro, Shigeki; Ozeki, Ryoji; Ueda, Masashi

doi:10.1016/s0009-2614(01)00838-7

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…An additional tool in understanding the complex system of atmospheric processes leading to NO x production is the study of isotope distributions in the atmosphere. For ozone (and several other atmospheric gases) an anomalous distribution has been found that has been attributed to the isotope shift of the zero-point energies [34][35][36]. Similar observations are expected for NO 2 isotopologues, but good benchmark transitions for remote sensing have been missing so far.…”

Section: The 14 851 CM à1 Band: a Benchmark Transition For Remote Sensupporting

confidence: 55%

The A2B2–X2A1 electronic transition of 15NO2: A rovibronic survey covering 14300–18000cm−1

Volkers

Koudijzer

Vredenborg

et al. 2006

Journal of Molecular Spectroscopy

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Section: The 14 851 CM à1 Band: a Benchmark Transition For Remote Sensupporting

confidence: 55%

The A2B2–X2A1 electronic transition of 15NO2: A rovibronic survey covering 14300–18000cm−1

Volkers

Koudijzer

Vredenborg

et al. 2006

Journal of Molecular Spectroscopy

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Sensitive fluorescence spectroscopy of jet cooled 15NO2

Volkers

Vredenborg

Linnartz

et al. 2004

Chemical Physics Letters

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Production and detection of reducing and oxidizing radicals in the catalytic decomposition of H2∕O2 mixtures on heated tungsten surfaces

Umemoto

Moridera

2008

Journal of Applied Physics

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H atoms, O atoms, and OH radicals were identified in the catalytic decomposition of H2∕O2 mixtures on heated polycrystalline tungsten surfaces. In order to suppress the oxidization of the tungsten catalyzer surfaces, the H2∕O2 pressure ratio was kept more than 83, while the catalyzer temperature was kept below 2000K. The absolute density of H atoms was determined by a vacuum-ultraviolet laser absorption technique, while one-photon and two-photon laser-induced fluorescence techniques were employed to extend the dynamic range. Since the O-atom density was much smaller, only a vacuum-ultraviolet laser-induced fluorescence technique could be used for the detection. The absolute density could be estimated by comparing the induced fluorescence intensity with that for H atoms. OH radicals could be identified by a laser-induced fluorescence technique in the ultraviolet region. The absolute density was determined by comparing the induced fluorescence intensity with that of Rayleigh scattering caused by Ar. The H-atom density decreased with the increase in the O2 partial pressure stepwisely. The O-atom density increased with the O2 partial pressure monotonously, but the increase was rather slow at low O2 pressures. The OH-radical density showed saturation against the O2 partial pressure. These results can be explained by the change in the coverage conditions of the catalyzer surfaces.

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14N/15N kinetic isotope effect in the association reaction ()++→+

Cited by 5 publications

References 32 publications

The A2B2–X2A1 electronic transition of 15NO2: A rovibronic survey covering 14300–18000cm−1

The A2B2–X2A1 electronic transition of 15NO2: A rovibronic survey covering 14300–18000cm−1

Sensitive fluorescence spectroscopy of jet cooled 15NO2

Production and detection of reducing and oxidizing radicals in the catalytic decomposition of H2∕O2 mixtures on heated tungsten surfaces

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