L. Zhao et al. / Catalysis Communications 11 (2010) 391–395
395
3
2
2
2
2
2
0
8
6
4
2
0
C +
2
2
2
2
2
2
8
6
4
2
0
CH4
CO2
5
5
4
4
5
0
5
0
2
2
2
2
.3
.2
.1
.0
0
200
400
600
800
Time - on - stream, min
Fig. 6. CO consumption rate and product selectivities obtained over the un-treated Mo
2 2
C (open symbols) and the 2 h alkali-treated Mo C (solid symbols) measured at
À1
8
.2 MPa, 573 K, CO:H
2
= 1 and GHSV = 3960 h
.
alkali metal to reduce selectivity to CH
tained in the present work was not unexpected. The alkali-treated
catalysts had been thoroughly washed prior to use and EDX con-
4
so the high selectivity ob-
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between the un-treated and alkali-treated Mo C were not as great
as observed for the THCZ dehydrogenation reaction.
[
[
4
. Conclusion
[
[
The surface area of an unsupported Mo
2
C catalyst was increased
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(
1999) 351–356.
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2
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3
(
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ment did not change the Mo
position. The alkali-treated Mo
the dehydrogenation of THCZ and for CO hydrogenation, compared
2
C morphology nor the catalyst com-
2
C showed enhanced activity for
2
to the un-treated Mo C.
[
[
[
[
Acknowledgement
Funding for the present study from Natural Sciences and Engi-
neering Research Council of Canada is gratefully acknowledged.
L.Z. thanks the Ministry of Education of China for scholarship
support.
[
[
[
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