Determination of free oxygen in the catalytic reduction of nitrogen oxideson palladium-containing catalysts

Authors
Bol'shakov, AM Sergeeva, OV Khrenova, NI Minin, VV
Citation
Am. Bol'Shakov et al., Determination of free oxygen in the catalytic reduction of nitrogen oxideson palladium-containing catalysts, J ANALYT CH, 56(7), 2001, pp. 679-681
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
56
Issue
7
Year of publication
2001
Pages
679 - 681
Database
ISI
SICI code
1061-9348(200107)56:7<679:DOFOIT>2.0.ZU;2-8
Abstract
A procedure is proposed for the in situ determination of free oxygen in the high-temperature solid-phase catalytic reduction of NO based on an EPR stu dy of the behavior of a reference addition of BaO. An approximating functio n for the dependence of the relative intensity of EPR spectra on the concen tration of resulting BaO2 was found. Concentrations of surface oxygen produ ced on the catalytic decomposition of NO and NO2 on palladium in the system 0.4% Pd + BaO were determined.