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Periodically Ordered Mesoporous Co3O4/Heteropoly Acid Composite Frameworks for Catalytic Applications

Published online by Cambridge University Press:  10 February 2011

Gerasimos S. Armatas ,
Ioannis Tamiolakis  and
Dimitris E. Petrakis
Gerasimos S. Armatas*
Affiliation:
Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece.
Ioannis Tamiolakis
Affiliation:
Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece.
Dimitris E. Petrakis
Affiliation:
Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
*
*Corresponding author: [email protected]
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Abstract

Mesoporous cobalt oxide-tungstophosphoric acid composite frameworks have been synthesized by structure replication from cubic mesoporous KIT-6 silica. The products possess a regular structure with uniform wall thickness (~7 nm) and large internal BET surface area (~87-141 m2/g). The pore walls of these materials consist of nanocrystalline Co3O4 and 12-tungstophosphoric acid (HPW) components with different HPW content, i.e. 6, 15 and 36 wt. %. Total X-ray scattering analysis and UV/vis spectroscopy confirmed the Keggin structure of HPW into the mesoporous frameworks. Preliminary catalytic experiments found that Co3O4-HPW composites exhibited a remarkable activity in the direct decomposition of nitrous oxide into N2 and O2.

Keywords

compositenanostructurecatalytic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1309: Symposium EE – Solid-State Chemistry of Inorganic Materials VIII , 2011 , mrsf10-1309-ee09-16
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

[1] Müller, A. P. and Kögerler, P., Coord. Chem. Rew. 182, 3 (1999). b) C. L. Hill, C. M. Prosser-McCartha, Coord. Chem. Rev. 143, 407 (1995). c) I. V. Kozhevnikov, Chem. Rev. 98, 171 (1998).Google Scholar
[2] Kozhevnikov, I. V. in Catalysis for Fine Chemical Synthesis: Catalysis by Polyoxometalates, vol. 2, (WILEY-VCH, England, 2002).Google Scholar
[3] Uchida, S., Hashimoto, M. and Mizuno, N., Angew. Chem. Int. Ed. 41, 2814 (2002). b) K. Zhu, J. Hu, X. She, J. Liu, Z. Nie, Y. Wang, C. H. F. Peden and J. H. Kwak, J. Am. Chem. Soc. 131, 9715 (2009). c) K. Inumaru, T. Ishihara, Y. Kamiya, T. Okuhara and S. Yamanaka, Angew. Chem. Int. Ed. 46, 7625 (2007).Google Scholar
[4] Yu, S. Y., Wang, L.-P., Chen, B., Gu, Y.-Y., Li, J., Ding, H.-M. and Shan, Y.-K., Chem. A Eur. J. 11, 3894 (2005). b) L. R. Pizzio, P. G. Vazquez, C. V. Caceres, M. N. Blanco, Appl. Catal. A: Gen. 256, 125 (2003). c) Z. Zhu, W. Yang, J. Phys. Chem. C 113, 17025 (2009). d) S. Boujday, J. Blanchard, R. Villanneau, J.-M. Krafft, C. Geantet, C. Louis, M. Breysse, A. Proust, Chem. Phys. Chem. 8, 2636 (2007).Google Scholar
[5] Schroden, R. C., Blanford, C. F., Melde, B. J., Johnson, B. J. S. and Stein, A., Chem. Mater. 13, 1074 (2001). b) H. Choi, Y.-Y. Chang, Y.-U. Kwon and O. H. Han, Chem. Mater. 15, 3261 (2003). c) Y. Guo, Y. Wang, C. Hu, Y. Wang and E. Wang, Chem. Mater. 12, 3501 (2000). d) G. S. Armatas, A. P. Katsoulidis, D. E. Petrakis and P. J. Pomonis, J. Mater. Chem. 20, 8631 (2010).Google Scholar
[6] Armatas, G. S., Katsoulidis, A. P., Petrakis, D. E., Pomonis, P. J. and Kanatzidis, M. G., Chem. Mater. 22, 5739 (2010).Google Scholar
[7] Kleitz, F., Choi, S. H., and Ryoo, R., Chem. Commun. 17, 2136 (2003).Google Scholar
[8] Kaneda, M., Tsubakiyama, T., Carlsson, A., Sakamoto, Y., Ohsuna, T., Terasaki, O., Joo, S. and Ryoo, R., J. Phys. Chem. B 106, 1256 (2002).Google Scholar
[9] He, T., Chen, D., Jiao, X., Wang, Y., Duan, Y., Chem. Mater. 17, 4023 (2005).Google Scholar
[10] Cheng, C. S., Serizawa, M., Sakata, H., Hirayama, T., Mater. Chem. Phys. 53, 225 (1998).Google Scholar
[11] Xu, R., Zeng, H. C., Langmuir 20, 9780 (2004). b) T. He, D. Chen, X. Jiao, Y. Wang, Y. Duan, Chem. Mater. 17, 4023 (2005).Google Scholar
[12] Billinge, S. J. L., and Kanatzidis, M. G., Chem. Commun. 7, 749 (2004).Google Scholar
[13] Ravishankara, A. R., Daniel, J. S., and Portmann, R. W., Science 326, 123 (2009).Google Scholar
[14] Yan, L., Zhang, X., Ren, T., Zhang, H., Wang, X. and Suo, J., Chem. Commun. 8, 860 (2002).Google Scholar
[15] Pèrez-Ramirez, J., Kapteijn, F., Mul, G. and Moilijn, J. A., Chem. Commun. 8, 693 (2001).Google Scholar