S. Xia et al. / Applied Catalysis A: General 403 (2011) 173–182
181
the National Key Project of Fundamental Research (Contract Nos.
2007CB210207).
Appendix A. Supplementary data
Supplementary data associated with this article can be found, in
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This research work was supported by the National Natural Sci-
ence Foundation of China (Contract No. 21075139, 90610002),
Zhejiang Provincial Natural Science Foundation (grant no. Z406142)
and the Ministry of Science and Technology of China through