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题名: Improved hydrogen desorption properties of Li-Ca-B-N-H system catalyzed by cobalt containing species
作者: Chu, Hailiang1, 2, 3;  Qiu, Shujun1, 2, 3;  Sun, Lixian1, 2;  Wu, Guotao4
刊名: JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
发表日期: 2014
DOI: 10.1063/1.4861397
卷: 6, 期:1
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels
研究领域[WOS]: Energy & Fuels
英文摘要: Calcium borohydride, Ca(BH4)(2), one of the promising candidates for efficient hydrogen storage, has been synthesized successfully by the metathesis reaction between magnesium chloride and sodium borohydride in tetrahydrofuran in which the insoluble byproduct sodium chloride can be easily removed. And the hydrogen storage properties of its related Ca(BH4)(2)-4LiNH(2) composite system with the presence of cobalt containing species as additives are systematically investigated. A doping of 5wt. % CoCl2 considerably decreases the dehydrogenation temperature of a mixture of Ca(BH4)(2)-4LiNH(2). More than 4.5 and 7 wt. % of hydrogen can be released at temperatures as low as ca. 165 and 178 degrees C, respectively. The effective catalytic species is determined to be cobalt particle which is formed on-site during ball milling process, having superior catalytic performance to cobalt powder as a catalyst. In addition, the results show that the amount of by-product NH3 is less when dehydrogenated by volumetric release than by thermogravimetric analysis (TG), i.e., evolved NH3 can react with borohydride for hydrogen release in closed reactor. (C) 2014 AIP Publishing LLC.
关键词[WOS]: VON ERDALKALIBORANATEN ME<BH4>2 ;  CALCIUM BOROHYDRIDE ;  STORAGE PROPERTIES ;  COMPLEX HYDRIDES ;  UND DIBORAN ;  CA(BH4)(2) ;  REVERSIBILITY ;  DIFFRACTION ;  MG(BH4)(2) ;  PHASE
语种: 英语
WOS记录号: WOS:000332320200021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145839
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China
2.Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
3.Guilin Univ Elect Technol, Guangxi Expt Ctr Informat Sci, Guilin 541004, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Chu, Hailiang,Qiu, Shujun,Sun, Lixian,et al. Improved hydrogen desorption properties of Li-Ca-B-N-H system catalyzed by cobalt containing species[J]. JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY,2014,6(1).
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