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@ARTICLE{Ngamou:861381,
author = {Ngamou, P. H. Tchoua and Ivanova, M. E. and Guillon, O. and
Meulenberg, Wilhelm Albert},
title = {{H}igh-performance carbon molecular sieve membranes for
hydrogen purification and pervaporation dehydration of
organic solventsiek},
journal = {Journal of materials chemistry / A Materials for energy and
sustainability A},
volume = {7},
number = {12},
issn = {2050-7496},
address = {London},
publisher = {RSC72819},
reportid = {FZJ-2019-01859},
pages = {7082-7091},
year = {2019},
abstract = {Ultrathin (∼200 nm) and defect-free carbon molecular
sieve (CMS) membranes were successfully fabricated on the
inner surface of hierarchically structured porous supports
(γ-Al2O3 layer coated α-Al2O3 tubes) via pyrolysis of a
polyimide precursor at 700 °C. The chemical structure of
the carbonized samples was examined in detail by means of
Raman spectroscopy and X-ray photoelectron spectroscopy.
From these studies, it was found that the carbonized samples
consist of graphitic carbon layers containing sp3-type
defects. The synthesized CMS membranes showed an
unprecedentedly high H2 permeance of up to 1.1 × 10−6 mol
m−2 s−1 Pa−1 and ideal separation factors of 24, 130
and 228 for H2/CO2, H2/N2 and H2/CH4, respectively at 200
°C. Furthermore, outstanding separation factors of 791 and
1946 with a water flux of about 0.5 kg m−2 h−1 were
obtained at 70 °C for the pervaporation of 10 $wt\%$
water-containing binary mixtures of methanol and ethanol,
respectively. These results unambiguously show that the
carbon membranes developed in this work possess the
potential for high-temperature hydrogen purification and
dewatering of organic solvents.},
cin = {IEK-1 / JARA-ENERGY},
ddc = {530},
cid = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113)},
pid = {G:(DE-HGF)POF3-113},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000463814800048},
doi = {10.1039/C8TA09504C},
url = {https://juser.fz-juelich.de/record/861381},
}