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Electrochemical characteristics of Mg 0.9 Ti 0.1‐ x Zr x Ni ( x =0.02, 0.04, 0.06) alloys
Author(s) -
Yuan HuaTang,
Feng Yan,
Qiao LinJun,
Liu Qiang,
Wang YiJing
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040221020
Subject(s) - electrochemistry , chemistry , hydrogen storage , amorphous solid , zirconium , electrode , alloy , coating , graphite , analytical chemistry (journal) , metallurgy , hydrogen , crystallography , inorganic chemistry , materials science , organic chemistry , chromatography
Mg‐based hydrogen storage alloys Mg 0.9 Ti 0.1‐ x Zr x Ni (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 Mg 0.9 Ti 0.1‐ x Zr x Ni were also studied. The results indicated that coating with graphite improved both the discharge capacity and cycle life of the amorphous Mg 0.9 Ti 0.1‐ x Zr x Ni electrode.