ChemCatChem
10.1002/cctc.201701255
COMMUNICATION
Al
2
O
3
, it possessed the poorest stability among the three Acknowledgements
catalysts. This poor catalytic stability attributed to the coke
deposition as well as the existence of unstable active
components on the surface of Meso-Al
the supporting information).
Compared with Fe
Meso-FeAl shows the highest initial activity (752.2 gBD/kgcat/h)
for BD synthesis, which is about 1.75 times to the activity of
This work was supported by the National Natural Science
Foundation of China (NSFC) (Grant No. 21606172), the
PetroChina Innovation Foundation (2016D-5007-0502), the
2
O
3
(Figure S4 and S6 in
[
7b, 9c, 9d]
2
O
3
/γ-Al
2
O
3
and Fe /Meso-Al
2
O
3
2 3
O ,
Project from Tianjin University of Science
&
Technology
2014CXLG15), the Project from Tianjin Education Commission
2017KDYB17, 2017KDYB18) and the National Training
(
(
2 3 2 3 2
Fe O /γ-Al O . It also shows high BD selectivity, high CO
Program of Innovation and Entrepreneurship for Undergraduates
201610057135).
conversion and excellent stability for BD rate (in the first 40
minutes of the reaction). The excellent catalytic properties of
Meso-FeAl might be due to the highly dispersed iron species
which are doped inside the alumina matrix. And it was also
reported that homogeneous distribution of active sites as well as
the strong metal-support interactions were the reason of high
catalytic activity and excellent stability for this kind of
(
Keywords: Iron-doped ordered mesoporous alumina • 1, 3-
Butadiene • Oxidative dehydrogenation • CO • 1-Butene
2
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Figure 3. Catalytic properties for Meso-FeAl, Fe
Fe /Meso-Al : (a) BD rate, (b) BD selectivity, (c) 1-butene conversion
and (d) CO conversion. Reaction conditions: T = 873 K, P = 0.1 MPa, weight
hourly space velocity (WHSV) = 4.5g/g-cat∙h, 1-butene/CO = 1:9 (vol.%).
More details were shown in the supporting information.)
2
O
3
/γ-Al
2
O
3
and
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In conclusion, we synthesized Meso-FeAl catalyst with
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area, large pore volume and high dispersion of iron species in
alumina matrix. Furthermore, Meso-FeAl displays effectiveness
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and stability during catalytic ODH of 1-butene to BD using CO
as oxidant. Compared with conventional Fe /γ-Al , the BD
rate of Meso-FeAl improved by 75% (from 429.7 gBD/kgcat/h to
52.2 gBD/kgcat/h). We investigated that not only the structural
2
2
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2 3
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properties but also the existence of iron species in catalyst
matrix play important role in BD synthesis. Fruther, We explored
that Meso-FeAl is a novel Fe-based catalyst material which has
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