Effects of transition metal in Sn-based pyrochlores on the methane catalytic combustion
Effects of transition metal in Sn-based pyrochlores on the methane catalytic combustion
Lanthanum stannate pyrochlores, La2Sn2O7 and La2SnMO7 (M=Mn, Fe, Co, Ni, Cu), were successfully prepared by citric acid method and confirmed by XRD. TG and TPR characterizations showed that the introduction of transitional metals resulted in significant impacts on the structures and redox performances of pyrochlores. All the selected transitional metals could significantly improve their methane catalytic combustion performance. Among the doped pyrochlores, La2SnCoO7 pyrochlore possessed optimum activities at low temperatures, and Fe-doped pyrochlore showed highest reactivity for high temperature combustion and was proved to be promising materials for high temperature catalytic combustion. The reactivity differences of La2SnMO7 were reasonably attributed to the strong interactions between Sn and transitional metal.
methane, catalytic combustion, Sn-based pyrochlore, transition metal
134-138
Jiang, Z.
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Su, J.
b468112d-4f35-49fa-b57f-f6bd168ecde1
Han, Y.
7ff3e82b-2df8-40df-adb9-1e0afb985a86
Alshahrani, F.
c58143bc-a7b9-413d-ba81-52ad38206814
Hao, Z.
875efaf5-6631-4748-8984-94b0c0bd2216
Xiao, T.
d018fe72-2cff-4ffd-9007-647aab67477c
2005
Jiang, Z.
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Su, J.
b468112d-4f35-49fa-b57f-f6bd168ecde1
Han, Y.
7ff3e82b-2df8-40df-adb9-1e0afb985a86
Alshahrani, F.
c58143bc-a7b9-413d-ba81-52ad38206814
Hao, Z.
875efaf5-6631-4748-8984-94b0c0bd2216
Xiao, T.
d018fe72-2cff-4ffd-9007-647aab67477c
Jiang, Z., Su, J., Han, Y., Alshahrani, F., Hao, Z. and Xiao, T.
(2005)
Effects of transition metal in Sn-based pyrochlores on the methane catalytic combustion.
[in special issue: Green Chemistry and Future Energy]
Progress in Natural Science, 15, supplement 1, .
(doi:10.1080/10020070512330020).
Abstract
Lanthanum stannate pyrochlores, La2Sn2O7 and La2SnMO7 (M=Mn, Fe, Co, Ni, Cu), were successfully prepared by citric acid method and confirmed by XRD. TG and TPR characterizations showed that the introduction of transitional metals resulted in significant impacts on the structures and redox performances of pyrochlores. All the selected transitional metals could significantly improve their methane catalytic combustion performance. Among the doped pyrochlores, La2SnCoO7 pyrochlore possessed optimum activities at low temperatures, and Fe-doped pyrochlore showed highest reactivity for high temperature combustion and was proved to be promising materials for high temperature catalytic combustion. The reactivity differences of La2SnMO7 were reasonably attributed to the strong interactions between Sn and transitional metal.
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Published date: 2005
Keywords:
methane, catalytic combustion, Sn-based pyrochlore, transition metal
Organisations:
Faculty of Business, Law and Art
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Local EPrints ID: 352778
URI: http://eprints.soton.ac.uk/id/eprint/352778
ISSN: 1002-0071
PURE UUID: f331e05c-c86b-4d76-bd8f-17b250e81de8
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Date deposited: 10 Jun 2013 14:27
Last modified: 15 Mar 2024 03:47
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Author:
J. Su
Author:
Y. Han
Author:
F. Alshahrani
Author:
Z. Hao
Author:
T. Xiao
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