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Hydrogen generation by hydrolysis reaction of ball-milled Al-Bi alloys
Fan, Mei-Qiang; Xu, Fen; Sun, Li-Xian; Xu F(徐芬); Sun LX(孙立贤); Xu F(徐芬); Sun LX(孙立贤)
刊名ENERGY & FUELS
2007-07-01
DOI10.1021/ef0700127
21期:4页:2294-2298
收录类别SCI
文章类型Article
部门归属15
项目归属1504
产权排名1;1
WOS标题词Science & Technology ; Technology
类目[WOS]Energy & Fuels ; Engineering, Chemical
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]ALUMINUM ; ACTIVATION ; BLISTER ; RUPTURE ; GALLIUM ; WATER
英文摘要An investigation of hydrogen generation by the hydrolysis reaction of Al-Bi alloys in different media (pure water, 1 M NaCl solution, methanol, and ethanol) was performed at room temperature. The results show that the media have a great effect on the hydrolysis of Al-Bi alloys. In 1 M NaCl solution and in pure water, Al-16 wt % Bi alloy presents the maximum conversion yields at 92.75% (970 mL g(-1)) and 89.88% (930 mL g(-1)), as well as first 5 min hydrogen generation rates of 92 and 46 mL min(-1) g(-1), respectively. However, the hydrolysis of the ball-milled Al-Bi alloys in methanol and ethanol corresponds to only a little or even no hydrogen production. The hydrolysis mechanism of the Al-Bi alloys is based on the microgalvanic cell between the anode (Al) and cathode (Bi), so the high ionic conduction of the media plays an important role in improving the Al reactivity. Bi can activate Al, and a higher content of Bi metal can accelerate the hydrolysis rate of Al. The scanning electron microscopy images and energy dispersive X-ray results showed that the shape of Al particles changes from the initial round to platelet, and the mean size first increases markedly after being milled. Then, with a prolonging of the milling time, the Al platelet ruptures, and the mean size decreases. So, the Bi distribution remains uniform with increasing ball-milling time and results in the higher reactivity of the milled alloys.
语种英语
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WOS记录号WOS:000248085100059
引用统计
被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/99021
专题中国科学院大连化学物理研究所
通讯作者Xu F(徐芬); Sun LX(孙立贤); Xu F(徐芬); Sun LX(孙立贤)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Fan, Mei-Qiang,Xu, Fen,Sun, Li-Xian,et al. Hydrogen generation by hydrolysis reaction of ball-milled Al-Bi alloys[J]. ENERGY & FUELS,2007,21(4):2294-2298.
APA Fan, Mei-Qiang.,Xu, Fen.,Sun, Li-Xian.,徐芬.,孙立贤.,...&孙立贤.(2007).Hydrogen generation by hydrolysis reaction of ball-milled Al-Bi alloys.ENERGY & FUELS,21(4),2294-2298.
MLA Fan, Mei-Qiang,et al."Hydrogen generation by hydrolysis reaction of ball-milled Al-Bi alloys".ENERGY & FUELS 21.4(2007):2294-2298.
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