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Improved dehydrogenation of LiBH4 supported on nanoscale SiO2 via liquid phase method

  • X.Y. Chen (a1), Y.H. Guo (a1), L. Gao (a1) and X.B. Yu (a1)

Abstract

A wet loading method was developed to produce nano-sized LiBH4 combined with nano-SiO2 templates. The multicomponent LiBH4/SiO2 material synthesized by the wet method has been found to dehydrogenate at much lower temperatures than the pure LiBH4, as well as LiBH4/SiO2 mixtures prepared by ball milling. For example, the onset of dehydrogenation was decreased to about 200 °C for a wet-treated LiBH4/SiO2 mixture with a mass ratio of 1:1, and the majority of the hydrogen could be released below 350 °C. The improved dehydrogenation of the wet-treated LiBH4/SiO2 mixtures can be attributed to the destabilization of SiO2, resulting in the formation of lithium metasilicate (Li2SiO3) upon heating, and the confinement of LiBH4 to form nanoscale particles.

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a)Address all correspondence to this author. e-mail: yuxuebin@fudan.edu.cn

References

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1.Züttel, A., Rentsch, S., Fischer, P., Wenger, P., Sudan, P., Mauron, Ph., Emmenenegger, C.: Hydrogen storage properties of LiBH4. J. Alloys Compd. 356–357, 515 (2003)
2.Züttel, A., Wenger, P., Rentsch, S., Sudan, P., Mauron, P., Emmenegger, C.: LiBH4 a new hydrogen storage material. J. Power Sources 118, 1 (2003)
3.Pinkerton, F.E., Meisner, G.P., Meyer, M.S., Balogh, M.P., Kundrat, M.D.: Hydrogen desorption exceeding ten weight percent from the new quaternary hydride Li3BN2H8. J. Phys. Chem. B 109, 6 (2005)
4.Orimoa, S., Nakamoria, Y., Kitaharaa, G., Miwab, K., Ohbab, N., Towatab, S., Züttel, A.: Dehydriding and rehydriding reactions of LiBH4. J. Alloys Compd. 404–406, 427 (2005)
5.Friedrichs, O., Buchter, F., Borgschulte, A., Remhof, A., Zwicky, C.N., Mauron, Ph., Bielmann, M., Züttel, A.: Direct synthesis of Li[BH4] and Li[BD4] from the elements. Acta Mater. 56, 949 (2008)
6.Xu, J., Yu, X.B., Zou, Z.Q., Li, Z.L., Wu, Z., Akins, D.L., Yang, H.: Enhanced dehydrogenation of LiBH4 catalyzed by carbon-supported Pt nanoparticles. Chem. Commun. (Camb.) 44, 5740 (2008)
7.Kang, X.D., Wang, P., Ma, L.P., Cheng, H.M.: Reversible hydrogen storage in LiBH4 destabilized by milling with Al. Appl. Phys. A 89, 963 (2007)
8.Yu, X.B., Grant, D.M., Walker, G.S.: Low-temperature dehydrogenation of LiBH4 through destabilization with TiO2. J. Phys. Chem. C 112, 11059 (2008)
9.Mosegaard, L., Møller, B., Jùrgensen, J.E., Filinchuk, Y., Cerenius, Y., Hanson, J.C., Dimasi, E., Besenbacher, F., Jensen, T.R.: Reactivity of LiBH4: In situ synchrotron radiation powder x-ray diffraction study. J. Phys. Chem. C 112, 1299 (2008)
10.Yu, X.B., Dou, T., Wu, Z., Xia, B.J., Shen, J.: Electrochemical hydrogen storage in Ti–V-based alloys surface-modified with carbon nanoparticles. Nanotechnology 17, 268 (2006)
11.Bösenberg, U., Doppiu, S., Mosegaard, L., Barkhordarian, G., Eigen, N., Borgschulte, A., Jensen, T.R., Cerenius, Y., Gutfleisch, O., Klassen, T., Dornheim, M., Bormann, R.: Hydrogen sorption properties of MgH2–LiBH4 composites. Acta Mater. 55, 3951 (2007)
12.Vajo, J.J., Skeith, S.L.: Reversible storage of hydrogen in destabilized LiBH4. J. Phys. Chem. B 109, 3719 (2005)
13.Gross, F., Vajo, J.J., Van Atta, L.S., Olson, G.L.: Enhanced hydrogen storage kinetics of LiBH4 in nanoporous carbon scaffolds. J. Phys. Chem. C 112, 5651 (2008)
14.Kissinger, H.E.: Reaction kinetics in differential thermal analysis. Anal. Chem. 29, 1702 (1957)
15.Wagemaker, M., Borghols, W.J.H., Mulder, F.M.: Large impact of particle size on insertion reactions: A case for anatase LixTiO2. J. Am. Chem. Soc. 129, 4323 (2007)
16.Badmos, A.Y., Bhadeshia, H.K.D.H.: The evolution of solutions: A thermodynamic analysis of mechanical alloying. Metall. Mater. Trans. A 11, 2189 (1997)

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Improved dehydrogenation of LiBH4 supported on nanoscale SiO2 via liquid phase method

  • X.Y. Chen (a1), Y.H. Guo (a1), L. Gao (a1) and X.B. Yu (a1)

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