Hydrogen generation from solvolysis of sodium borohydride in ethylene glycol-water mixtures over a wide range of temperature

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	Hydrogen generation from solvolysis of sodium borohydride in ethylene glycol-water mixtures over a wide range of temperature
	D. W. Zhuang; H. B. Dai; P. Wang
	2013
发表期刊	Rsc Advances
ISSN	2046-2069
卷号	3 期号:45 页码:23810-23815
摘要	A high-performance hydrogen generation system with fast kinetics and a wide range of operational temperature is highly desirable for promoting the implementation of hydrogen fuel cell technology. In the present study, we report a comparative study of the hydrogen generation properties from the reactions between sodium borohydride (NaBH4) and ethylene glycol (EG), water (H2O) or their mixture. Our study found that the glycolysis kinetics of NaBH4 is faster than the hydrolysis kinetics at moderate temperatures, but gets sluggish at low temperatures. As a solution, the combined usage of EG-water mixture as solvent and cobalt chloride (CoCl2) as a promoting additive enables the system to rapidly deliver H-2 at low temperatures. A series of control experiments have been conducted to evaluate the hydrogen generation property dependence on EG concentration, CoCl2 amount and ratio of EG-H2O mixture to NaBH4. The reaction byproducts were characterized by powder X-ray diffraction and Fourier transform infrared spectroscopy techniques. Our study demonstrated a high-performance hydrogen generation system with a wide range of operational temperature, which may lay the foundation for developing practical hydrogen source for mobile/portable applications.
部门归属	[zhuang, da-wei ; dai, hong-bin ; wang, ping] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; dai, hb (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; hbdai@imr.ac.cn ; pingwang@imr.ac.cn
关键词	Hydrolysis Methanolysis Catalysts Cobalt Nabh4 Systems
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语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71757
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. W. Zhuang,H. B. Dai,P. Wang. Hydrogen generation from solvolysis of sodium borohydride in ethylene glycol-water mixtures over a wide range of temperature[J]. Rsc Advances,2013,3(45):23810-23815.
APA	D. W. Zhuang,H. B. Dai,&P. Wang.(2013).Hydrogen generation from solvolysis of sodium borohydride in ethylene glycol-water mixtures over a wide range of temperature.Rsc Advances,3(45),23810-23815.
MLA	D. W. Zhuang,et al."Hydrogen generation from solvolysis of sodium borohydride in ethylene glycol-water mixtures over a wide range of temperature".Rsc Advances 3.45(2013):23810-23815.