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Catalytic Processes in the Atmospheres of Earth and Venus

DeMore, W. B. and Yung, Yuk L. (1982) Catalytic Processes in the Atmospheres of Earth and Venus. Science, 217 (4566). pp. 1209-1213. ISSN 0036-8075. http://resolver.caltech.edu/CaltechAUTHORS:20140905-140637275

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Abstract

Photochemical processes in planetary atmospheres are strongly influenced by catalytic effects of minor constituents. Catalytic cycles in the atmospheres of Earth and Venus are closely related. For example, chlorine oxides (CIO_x) act as catalysts in the two atmospheres. On Earth, they serve to convert odd oxygen (atomic oxygen and ozone) to molecular oxygen. On Venus they have a similar effect, but in addition they accelerate the reactions of atomic and molecular oxygen with carbon monoxide. The latter process occurs by a unique combination of CIO_x catalysis and sulfur dioxide photosensitization. The mechanism provides an explanation for the very low extent of carbon dioxide decomposition by sunlight in the Venus atmosphere.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.217.4566.1209 DOIArticle
http://www.sciencemag.org/content/217/4566/1209PublisherArticle
http://www.jstor.org/stable/1689414 .JSTORArticle
Additional Information:© 1982 American Association for the Advancement of Science The research described in this article was performed at Jet Propulsion Laboratory, California Institute of Technology, under NASA contracts NAS7-100 and NSG-7376. We are grateful for helpful comments and suggestions by several colleagues, especially M. A. Allen and W. T. Huntress.
Funders:
Funding AgencyGrant Number
NASANAS7-100
NASANSG-7376
Record Number:CaltechAUTHORS:20140905-140637275
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140905-140637275
Official Citation:Catalytic Processes in the Atmospheres of Earth and Venus Author(s): W. B. DeMore and Yuk L. Yung Source: Science, New Series, Vol. 217, No. 4566 (Sep. 24, 1982), pp. 1209-1213 Published by: American Association for the Advancement of Science Stable URL: http://www.jstor.org/stable/1689414.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49298
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:05 Sep 2014 23:05
Last Modified:05 Sep 2014 23:05

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