CaltechAUTHORS
  A Caltech Library Service

Gas-phase free radicals in the catalytic decomposition of hexane over tungsten. A modulated-beam mass spectrometric study

Amorebieta, V. T. and Colussi, A. J. (1982) Gas-phase free radicals in the catalytic decomposition of hexane over tungsten. A modulated-beam mass spectrometric study. Journal of Physical Chemistry, 86 (14). pp. 2760-2765. ISSN 0022-3654 . http://resolver.caltech.edu/CaltechAUTHORS:20150623-154815381

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20150623-154815381

Abstract

Desorption of alkyl and alkenyl (methyl, ethyl, allyl, and propyl) radicals from hot surfaces in the low-pressure (1 x 10^(12) - 8 x 10^(12) molecules cm^(-3) catalytic decomposition of hexane over W (1100-1800 K) and Pt (850-1400 K) has been studied by modulated-beam mass spectrometry. Time-of-flight analysis (phase spectrometry) of reaction products provided direct evidence about their identity. The effects of temperature, pressure, and surface treatment upon radical yields have also been investigated. Trapping of reactive species with iodine in a tandem reactor confirmed the presence of alkyl radicals. A mechanism is proposed in which free radicals, once formed, either desorb from the surface or decompose further into smaller fragments and olefins.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/j100211a040DOIArticle
http://pubs.acs.org/doi/abs/10.1021/j100211a040PublisherArticle
ORCID:
AuthorORCID
Colussi, A. J.0000-0002-3400-4101
Additional Information:© 1982 American Chemical Society. (Received: November 6, 1981; In Final Form: February 18, 1982) Generous support from "Comisión de Investigaciones Cientificas de la Provincia de Buenos Aires" is acknowledged.
Funders:
Funding AgencyGrant Number
Comisión de Investigaciones Cientificas de la Provincia de Buenos AiresUNSPECIFIED
Record Number:CaltechAUTHORS:20150623-154815381
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150623-154815381
Official Citation:Gas-phase free radicals in the catalytic decomposition of hexane over tungsten. A modulated-beam mass spectrometric study V. T. Amorebieta and A. J. Colussi The Journal of Physical Chemistry 1982 86 (14), 2760-2765 DOI: 10.1021/j100211a040
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58549
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:24 Jun 2015 18:07
Last Modified:24 Jun 2015 18:07

Repository Staff Only: item control page