Hydrogen-induced CO2 formation from ethylene deposits on Pt during consecutive O-2 and H-2 exposures

Authors
Norberg, P Lundstrom, I Ekedahl, LG
Citation
P. Norberg et al., Hydrogen-induced CO2 formation from ethylene deposits on Pt during consecutive O-2 and H-2 exposures, CATAL LETT, 65(1-3), 2000, pp. 25-31
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
65
Issue
1-3
Year of publication
2000
Pages
25 - 31
Database
ISI
SICI code
1011-372X(2000)65:1-3<25:HCFFED>2.0.ZU;2-C
Abstract
The oxidation of C2H4 deposits on polycrystalline Pt when exposed to consec utive O-2 and H-2 pulses at room temperature has been investigated in a lon g (L=36 mm), shallow (d=600-700 nm) micromachined glass-SiO2-Pt channel. Hy drogen-induced CO2 formation from species accumulated on the Pt surface was observed. Frequent switching of the O-2/H-2 exposure pulses was found to i ncrease the efficiency of the oxidation of the carbonaceous deposits marked ly. The observations may be of general interest for the regeneration of con taminated catalysts.