Electrochemical Characteristics of Mg0.9Ti0.1-xZrxNi(x=0.02, 0.04, 0.06) Alloys

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2004,（10）
• 页码范围: 1158-1163
• 页数: 6页
• 语种: 英文

摘要

Mg-based hydrogen storage alloys Mg0.9Ti0.1-xZrxNi (x=0.02, 0.04, 0.06) were successfully prepared by means of mechanical alloying (MA). The effects of Zr addition on the discharge capacity and the cycle performance of the Mg-based electrodes were also studied. It was found that the discharge capacities were improved with addition of a small amount of Zr and the cycle performances of the alloy were stabilized with the addition of Ti. The effects of surface modification or coating on the properties of Mg0.9Ti0.06Zr0.04Ni were also studied. The results indicated that coating with graphite improved both the discharge capacity and cycle life of the amorphous Mg0.9Ti0.06Zr0.04Ni electrode.