Probing radicals and reactive species in zeolites

David B. Pedersen*, Kurt Winkelmann, Eric Weitz

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Alkyl radicals can play an important role as intermediates in lean NOx chemistry. This type of chemistry is of relevance to the treatment of emissions from diesel engines. Diatomic iodine provides a model system in which the dynamics and interactions of intra-zeolite species can be probed, and where photodissociation leads to two atomic radicals. A study on iodine has demonstrated the capabilities of laser induced fluorescence for monitoring photodissociation processes and the fate of the photoproducts in this system. It also sheds light on how the nanoporous environment of the zeolite can affect photodissociation processes. The polar environment of the zeolite can also stabilize states of the parent and photoproducts by interactions similar to those involving solvation. In turn, the stabilization of states can affect the emission wavelengths observed subsequent to optical excitation of such systems. This is an abstract of a paper presented at the 222nd ACS National Meting (Chicago, IL 8/26-30/2001).

Original languageEnglish (US)
Pages (from-to)366-367
Number of pages2
JournalACS Division of Environmental Chemistry, Preprints
Volume41
Issue number2
StatePublished - 2001
Event222nd ACS National Meeting - Chicago, IL, United States
Duration: Aug 26 2001Aug 30 2001

ASJC Scopus subject areas

  • Chemical Engineering(all)

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