通过机械球磨法制备了一系列的MgNi、ZrB和MgNi-ZrB储氢合金.通过XRD、SEM、充放电性能、循环伏安、塔菲尔极化曲线、交流阻抗测试,研究了ZrB的添加对MgNi合金的储氢性能的影响.结果表面,ZrB的添加大大提高了MgNi合金的电化学性能.球磨15h的MgNi-ZrB (100∶5)复合物体现出最好的电化学性能,循环20周和50周时的放电容量分别为226和209mAh·g-1,远远高于MgNi合金的放电容量.动态极化曲线和交流阻抗测试显示ZrB的添加极大的提高了MgNi合金的抗腐蚀性能和电化学动力学性能.
参考文献
| [1] | Chen YZ;Liaw BJ;Chiang SJ .Selective hydrogenation of citral over amorphous NiB and CoB nano-catalysts[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):97-104. |
| [2] | Liaw BJ;Chiang SJ;Tsai CH;Chen YZ .Preparation and catalysis of polymer-stabilized NiB catalysts on hydrogenation of carbonyl and olefinic groups[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):239-246. |
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