Effect of CeH2.29 on the microstructures and hydrogen properties of LiBH4-Mg2NiH4 composites

Xin Zhao; Shu-min Han; Yuan Li; Xiao-cui Chen; Dan-dan Ke

doi:10.1007/s12613-015-1089-8

Volume 22 Issue 4

Apr. 2015

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文章导航 > 矿物冶金与材料学报（英文版） > 2015 > 22(4) : 423-428. > DOI: 10.1007/s12613-015-1089-8

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Xin Zhao, Shu-min Han, Yuan Li, Xiao-cui Chen, and Dan-dan Ke, Effect of CeH_2.29 on the microstructures and hydrogen properties of LiBH₄-Mg₂NiH₄ composites, Int. J. Miner. Metall. Mater., 22(2015), No. 4, pp.423-428. https://dx.doi.org/10.1007/s12613-015-1089-8

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Effect of CeH_2.29 on the microstructures and hydrogen properties of LiBH₄-Mg₂NiH₄ composites

Xin Zhao^1,2),
Shu-min Han^1,2), ,,
Yuan Li¹⁾,
Xiao-cui Chen¹⁾,
Dan-dan Ke¹⁾

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China

基金项目:

This research was financially supported by the National Natural Science Foundation of China (No. 50971112), the Natural Science Foundation of Hebei Province (No. E2010001170), and the Scientific Research Projects in Colleges and Universities in Hebei Province, China (No. ZD2014004).

通信作者:
Shu-min Han E-mail: hanshm@ysu.edu.cn

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中文摘要

A composite of LiBH₄-Mg₂NiH₄ doped with 10wt% CeH_2.29 was prepared by ball milling followed by dynamic interspace vacuum treatment at 573 K. The introduction of CeH_2.29 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% CeH_2.29 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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Effect of CeH_2.29 on the microstructures and hydrogen properties of LiBH₄-Mg₂NiH₄ composites

Xin Zhao^1,2),
Shu-min Han^1,2), ,,
Yuan Li¹⁾,
Xiao-cui Chen¹⁾,
Dan-dan Ke¹⁾

Author Affilications

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China

Funds:
This research was financially supported by the National Natural Science Foundation of China (No. 50971112), the Natural Science Foundation of Hebei Province (No. E2010001170), and the Scientific Research Projects in Colleges and Universities in Hebei Province, China (No. ZD2014004).
Received: 21 July 2014; Revised: 10 October 2014; Accepted: 12 October 2014;

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Effect of CeH_2.29 on the microstructures and hydrogen properties of LiBH₄-Mg₂NiH₄ composites

通信作者:
Shu-min Han E-mail: hanshm@ysu.edu.cn

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中文摘要

Effect of CeH_2.29 on the microstructures and hydrogen properties of LiBH₄-Mg₂NiH₄ composites

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