Park, HY Cho, WI Cho, BW Lee, SR Yun, KS 2024-01-21T13:03:20Z 2024-01-21T13:03:20Z 2021-09-05 2001-01 0378-7753 https://pubs.kist.re.kr/handle/201004/140807 The effect of fluorination on the surface of an AB(2)-type hydrogen-storage alloy with the composition Zr0.7Ti0.3V0.4Mn0.4Ni1.2 is investigated. Electron probe microanalysis (EPMA), scanning electron microscopy (SEM), Anger electron spectroscopy (AES), and X-ray diffraction (XRD) techniques show that the fluorinated AB(2)-type alloys have a unique surface morphology and high reactivity with a protective film. The treatment is found to be effective when lanthanum is incorporated in the alloy. The cycle-life of the metal hydride (MH) electrode increases significantly as a result of a decrease in the overpotential by electrode polarization. The degradation rate of the MH electrode is less than 3% after 100 cycles when lanthanum is added at 1-3 wt.%. (C) 2001 Elsevier Science B.V. All rights reserved. English ELSEVIER SCIENCE SA ACTIVE SURFACE LANI5 ALLOYS Effect of fluorination on the lanthanum-doped AB(2)-type metal hydride electrodes Article 10.1016/S0378-7753(00)00527-9 1 JOURNAL OF POWER SOURCES, v.92, no.1-2, pp.149 - 156 JOURNAL OF POWER SOURCES 92 1-2 149 156 scie scopus 000165235300021 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article ACTIVE SURFACE LANI5 ALLOYS fluorination Ni-MH battery hydrogen-storage alloy storage alloy MH electrode cycle-life lanthanum metal hydride