| 掺Ti球磨NaH/Al复合物的微结构和储氢特性 |
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| 引用本文： | 王新华,肖学章,陈立新,李寿权,陈长聘.掺Ti球磨NaH/Al复合物的微结构和储氢特性[J].高等学校化学学报,2006,27(7):1360-1362. |
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| 作者姓名： | 王新华 肖学章 陈立新 李寿权 陈长聘 |
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| 作者单位： | 浙江大学材料与化工学院,杭州,310027 |
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| 摘 要： | 本文采用机械球磨法制备了(NaH/Al)+x(摩尔分数, %)Ti(x=0, 4, 6, 10)复合物, 研究了不同球磨气氛和Ti催化剂含量对其微结构和储氢性能的影响, 使球磨(NaH/Al)体系储氢的容量达到质量分数为4.01%.
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| 关 键 词： | 络合氢化物 储氢性能 机械球磨 NaAlH4 Ti |
| 文章编号： | 0251-0790（2006）07-1360-03 |
| 收稿时间： | 01 12 2006 12:00AM |
| 修稿时间： | 2006-01-12 |
Microstructure and Hydrogen Storage Properties of Ti-Doped NaH/Al Composites Prepared by Ball-milling |
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| WANG Xin-Hua,XIAO Xue-Zhang,CHEN Li-Xin,LI Shou-Quan,CHEN Chang-Pin.Microstructure and Hydrogen Storage Properties of Ti-Doped NaH/Al Composites Prepared by Ball-milling[J].Chemical Research In Chinese Universities,2006,27(7):1360-1362. |
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| Authors: | WANG Xin-Hua XIAO Xue-Zhang CHEN Li-Xin LI Shou-Quan CHEN Chang-Pin |
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| Institution: | College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | In this paper,the microstructure and hydrogen storage properties of the(NaH/Al) x(molar fraction,%) Ti(x=0,4,6, 10) composites were investigated.It was found that the reversible hydrogen storage properties can be improved by mechanically ball-milling the(NaH/Al) mixture together with Ti powder.H_(2) is a better ball-milling atmosphere than Ar,because a part of NaH is consumed during the ball-milling under an Ar atmosphere.As the Ti content increases,the hydrogen storage properties are enhanced gradually.In case of x=10,the reversible hydrogen absorption/desorption capacities of the composites milled for 6 h under the H_(2) atmosphere reach 4.01% and 3.93%(mass fraction),respectively.The catalytic mechanism of the Ti-doped NaH/Al composites system is discussed briefly. |
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| Keywords: | Complex hydrides Hydrogen storage properties Mechanically ball-milling NaAlH_(4) Ti |
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