科研之友
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摘要
In this paper, the nanocrystalling composite Mg-Ni-TiO2-CNTs was made by mechanical ball milling under hydrogen pressure of 5.0 x 10(-5) Pa, The hydrogen storage properties and operation temperatures were investigated. It was found that the composite can absorb 7.5wt.% hydrogen in 60s under 5.0 x 10(-5) Pa hydrogen pressure and desorb 6.5wt% hydrogen in 600s at 260 degrees C under 5.0 x 10(-5) Pa hydrogen pressure. The composite has very high absorption, hydrogen capacity and remarkable kinetic properties in hydriding/dehydeiding process. TiO2, Ni and CNTs were used as additive to improve the hydrogen storage performance. They can be utilized as an effective catalyst to improve hydriding/dehydriding performance of hydrogen storage material and lead to pronounced enhancement on the hydrogen storage property of Mg. The results showed that the composite has potential application in the future.
- 出版日期2009-3-20
- 单位兰州理工大学
