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@ARTICLE{Nguyen:843787,
author = {Nguyen, Van Nhu and Deja, Robert and Peters, Roland and
Blum, Ludger and Stolten, Detlef},
title = {{S}tudy of {C}atalytic {C}ombustion of {L}ean
{H}ydrogen-{A}ir {M}ixtures in a {M}onolith {R}eactor},
journal = {International journal of hydrogen energy},
volume = {43},
number = {36},
issn = {0360-3199},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2018-01330},
pages = {17520-17530},
year = {2018},
abstract = {This paper presents an experimental study of catalytic
hydrogen combustion that used commercial catalysts
containing Pt in a honeycomb monolith reactor in a plug flow
configuration. The emphasis is on determining global
kinetics in the case of low hydrogen content. Measurements
of the temperature and composition of the reaction product
at the outlet in the steady state condition at the different
initial compositions of hydrogen and total volumetric feed
rates were performed. The conversion of hydrogen was
determined in parallel to the composition of the reaction
product at the outlet using GC as well as by means of the
thermodynamic approach using material and energy balances.
The influence of the flow rate and initial molar fraction of
hydrogen on hydrogen conversion is shown. A kinetic
expression of the Arrhenius type is proposed with the
reaction first order in hydrogen and zero order in oxygen
for the overall process of the oxidation of hydrogen in lean
hydrogen-air mixtures. The determined activation energy was
in good agreement with the desorption activation energy for
O2 from graphene-covered Pt(111) surfaces using
temperature-programmed desorption. This result shows
transport-limitations for heterogeneous hydrogen conversion
in catalytic hydrogen combustion.},
cin = {IEK-3},
ddc = {660},
cid = {I:(DE-Juel1)IEK-3-20101013},
pnm = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602)},
pid = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000444789300049},
doi = {10.1016/j.ijhydene.2018.07.126},
url = {https://juser.fz-juelich.de/record/843787},
}