Xin Zhao, Shu-min Han, Yuan Li, Xiao-cui Chen, and Dan-dan Ke, Effect of CeH2.29 on the microstructures and hydrogen properties of LiBH4-Mg2NiH4 composites, Int. J. Miner. Metall. Mater., 22(2015), No. 4, pp. 423-428. https://doi.org/10.1007/s12613-015-1089-8
Cite this article as:
Xin Zhao, Shu-min Han, Yuan Li, Xiao-cui Chen, and Dan-dan Ke, Effect of CeH2.29 on the microstructures and hydrogen properties of LiBH4-Mg2NiH4 composites, Int. J. Miner. Metall. Mater., 22(2015), No. 4, pp. 423-428. https://doi.org/10.1007/s12613-015-1089-8
Xin Zhao, Shu-min Han, Yuan Li, Xiao-cui Chen, and Dan-dan Ke, Effect of CeH2.29 on the microstructures and hydrogen properties of LiBH4-Mg2NiH4 composites, Int. J. Miner. Metall. Mater., 22(2015), No. 4, pp. 423-428. https://doi.org/10.1007/s12613-015-1089-8
Citation:
Xin Zhao, Shu-min Han, Yuan Li, Xiao-cui Chen, and Dan-dan Ke, Effect of CeH2.29 on the microstructures and hydrogen properties of LiBH4-Mg2NiH4 composites, Int. J. Miner. Metall. Mater., 22(2015), No. 4, pp. 423-428. https://doi.org/10.1007/s12613-015-1089-8
A composite of LiBH4-Mg2NiH4 doped with 10wt% CeH2.29 was prepared by ball milling followed by dynamic interspace vacuum treatment at 573 K. The introduction of CeH2.29 caused a transformation in the morphology of Mg from complex spongy and lamellar to uniformly spongy, resulting in refined particle size and abundant H diffusion pathways. This LiBH4-Mg2NiH4 + 10wt% CeH2.29 composite exhibited excellent hydrogen storage properties. The starting temperature of rapid H absorption decreased to 375 K in the doped composite from 452 K for the unmodified material, and the onset decomposition temperature of its hydride was reduced from 536 K to 517 K. In addition, the time required for a hydrogen release of 1.5wt% (at 598 K) was 87 s less than that of the un-doped composite.
A composite of LiBH4-Mg2NiH4 doped with 10wt% CeH2.29 was prepared by ball milling followed by dynamic interspace vacuum treatment at 573 K. The introduction of CeH2.29 caused a transformation in the morphology of Mg from complex spongy and lamellar to uniformly spongy, resulting in refined particle size and abundant H diffusion pathways. This LiBH4-Mg2NiH4 + 10wt% CeH2.29 composite exhibited excellent hydrogen storage properties. The starting temperature of rapid H absorption decreased to 375 K in the doped composite from 452 K for the unmodified material, and the onset decomposition temperature of its hydride was reduced from 536 K to 517 K. In addition, the time required for a hydrogen release of 1.5wt% (at 598 K) was 87 s less than that of the un-doped composite.
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