Formation of H2CO and C02 on an icy grain analogue using fast H-atoms

S. Madzunkov; J. MacAskill; A. Chutjian; P. Ehrenfreund; M. Darrach; G. Vidali; B. Shortt

doi:10.1088/1742-6596/194/9/092005

Formation of H₂CO and C0₂ on an icy grain analogue using fast H-atoms

S. Madzunkov, J. MacAskill, A. Chutjian, P. Ehrenfreund, M. Darrach, G. Vidali, B. Shortt

Department of Physics

Research output: Contribution to journal › Conference Article › peer-review

Abstract

Formadehyde (H₂CO) and carbon dioxide (CO₂) are produced in collisions of a superthermal, 3 eV beam of H(²S) atoms with CO molecules adsorbed on a gold surface at 4.8K. The reaction-generated products are detected and anayzed using the techniques of temperature programmed desorpton (TPD), quadrupole mass spectrometry (QMS), and a novel application of the Metropolis random-walk procedure to identify the unique fractionaton patterns of H₂CO and CO₂ from the patterns of other species such as N₂, CO, and H₂0 embedded in the CO blanket and devolved in the TPD/MS process. Reaction sequences will be given to account for the formaton of H₂CO and C0₂.

Original language	English (US)
Article number	092005
Journal	Journal of Physics: Conference Series
Volume	194
Issue number	9
DOIs	https://doi.org/10.1088/1742-6596/194/9/092005
State	Published - Dec 24 2009
Event	26th International Conference on Photonic, Electronic and Atomic Collisions - Kalamazoo, United States Duration: Jul 22 2009 → Jul 28 2009

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/194/9/092005

Cite this

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title = "Formation of H2CO and C02 on an icy grain analogue using fast H-atoms",

abstract = "Formadehyde (H2CO) and carbon dioxide (CO2) are produced in collisions of a superthermal, 3 eV beam of H(2S) atoms with CO molecules adsorbed on a gold surface at 4.8K. The reaction-generated products are detected and anayzed using the techniques of temperature programmed desorpton (TPD), quadrupole mass spectrometry (QMS), and a novel application of the Metropolis random-walk procedure to identify the unique fractionaton patterns of H2CO and CO2 from the patterns of other species such as N2, CO, and H20 embedded in the CO blanket and devolved in the TPD/MS process. Reaction sequences will be given to account for the formaton of H2CO and C02.",

author = "S. Madzunkov and J. MacAskill and A. Chutjian and P. Ehrenfreund and M. Darrach and G. Vidali and B. Shortt",

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T1 - Formation of H2CO and C02 on an icy grain analogue using fast H-atoms

AU - Madzunkov, S.

AU - MacAskill, J.

AU - Chutjian, A.

AU - Ehrenfreund, P.

AU - Darrach, M.

AU - Vidali, G.

AU - Shortt, B.

PY - 2009/12/24

Y1 - 2009/12/24

N2 - Formadehyde (H2CO) and carbon dioxide (CO2) are produced in collisions of a superthermal, 3 eV beam of H(2S) atoms with CO molecules adsorbed on a gold surface at 4.8K. The reaction-generated products are detected and anayzed using the techniques of temperature programmed desorpton (TPD), quadrupole mass spectrometry (QMS), and a novel application of the Metropolis random-walk procedure to identify the unique fractionaton patterns of H2CO and CO2 from the patterns of other species such as N2, CO, and H20 embedded in the CO blanket and devolved in the TPD/MS process. Reaction sequences will be given to account for the formaton of H2CO and C02.

AB - Formadehyde (H2CO) and carbon dioxide (CO2) are produced in collisions of a superthermal, 3 eV beam of H(2S) atoms with CO molecules adsorbed on a gold surface at 4.8K. The reaction-generated products are detected and anayzed using the techniques of temperature programmed desorpton (TPD), quadrupole mass spectrometry (QMS), and a novel application of the Metropolis random-walk procedure to identify the unique fractionaton patterns of H2CO and CO2 from the patterns of other species such as N2, CO, and H20 embedded in the CO blanket and devolved in the TPD/MS process. Reaction sequences will be given to account for the formaton of H2CO and C02.

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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T2 - 26th International Conference on Photonic, Electronic and Atomic Collisions

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ER -

Formation of H₂CO and C0₂ on an icy grain analogue using fast H-atoms

Abstract

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