Preparation of Zn(BH4)2 and diborane and hydrogen release properties of Zn(BH4)2+xMgH2 (x=1, 5, 10,
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- 作者：Young Jun Kwak ; Sung Nam Kwon ; Myoung Youp Song
- 关键词：hydrogen absorbing materials ; microstructure ; X ; ray diffraction ; Scanning electron microscopy (SEM) ; Zn(BH4)2+xMgH2 (x=1 ; 5 ; 10 ; and 15)
- 刊名：Metals and Materials International
- 出版年：2015
- 出版时间：September 2015
- 年：2015
- 卷：21
- 期：5
- 页码：971-976
- 全文大小：822 KB
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24.Y. J. Kwak, S. H. Lee, H. R. Park, and M. Y. Song, Korean J. Met. Mater. 51, 607 (2013). - 作者单位：Young Jun Kwak (1)
Sung Nam Kwon (2)
Myoung Youp Song (3)
1. Department of Materials Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero Deokjin-gu, Jeonju, 561-756, Republic of Korea
2. Professional Graduate School of Flexible and Printable Electronics, Chonbuk National University, 567 Baekje-daero Deokjin-gu, Jeonju, 561-756, Republic of Korea
3. Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Engineering Research Institute, Chonbuk National University, 567 Baekje-daero Deokjin-gu, Jeonju, 561-756, Republic of Korea - 刊物类别：Chemistry and Materials Science
- 刊物主题：Metallic Materials
Operating Procedures and Materials Treatment - 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
- ISSN：2005-4149
文摘
Zn(BH4)2 was prepared by milling ZnCl2 and NaBH4 in a planetary ball mill under Ar atmosphere, and Zn(BH4)2+xMgH2 (x=1, 5, 10, and 15) samples were prepared. Diborane (B2H6) and hydrogen release characteristics of the Zn(BH4)2 and Zn(BH4)2+xMgH2 samples were studied. The samples synthesized by milling ZnCl2 and NaBH4 contained Zn(BH4)2 and NaCl, together with small amounts of ZnCl2 and NaBH4. We designated these samples as Zn(BH4)2(+NaCl). The weight loss up to 400 °C of the Zn(BH4)2(+NaCl) sample synthesized by milling 4 h was 11.2 wt%. FT-IR analysis showed that Zn(BH4)2 was formed in the Zn(BH4)2(+NaCl) samples. MgH2 was also milled in a planetary ball mill, and mixed with the Zn(BH4)2(+NaCl) synthesized by milling for 4 h in a mortar and pestle. The weight loss up to 400 °C of Zn(BH4)2(+NaCl)+MgH2 was 8.2 wt%, corresponding to the weight % of diborane and hydrogen released from the Zn(BH4)2(+NaCl)+MgH2 sample, with respect to the sample weight. DTA results of Zn(BH4)2(+NaCl)+xMgH2 showed that the decomposition peak of Zn(BH4)2 was at about 61 °C, and that of MgH2 was at about 370-389 °C. Keywords hydrogen absorbing materials microstructure X-ray diffraction Scanning electron microscopy (SEM) Zn(BH4)2+xMgH2 (x=1, 5, 10, and 15)