TY - JOUR
T1 - Preparation and electrode properties of new ternary alloys
T2 - REMgNi 4 (RE = La, Ce, Pr, Nd)
AU - Wang, Z. M.
AU - Zhou, H. Y.
AU - Cheng, G.
AU - Gu, Z. F.
AU - Yu, A. B.
PY - 2004/12/14
Y1 - 2004/12/14
N2 - According to the elemental ratio of Nd:Mg:Ni = 1:1:4, NdMgNi4 ternary alloy was synthesized by sintering pressed tablets of the powders milled for 6 h. The sintering conditions are: 673 K, 3 h → 873 K, 3 h → 973 K, 3 h. The XRD analysis shows that the REMgNi4 (RE = La, Ce, Pr, Nd) alloys are single component alloys, and that Mg2Ni exists during the process of formation of the alloys. The electrode properties of the REMgNi 4 alloys were measured by simulated battery test. It was found that the initial discharge capacity of Mg2Ni and LaMgNi4 alloys milled for 50 h is about 400 mAh/g, but a good cycle life has been observed for the electrode of milled LaMgNi4 alloy. As to REMgNi4 alloys, a slightly increasing discharge capacity was observed in the following order: LaMgNi4 > NdMgNi4 > CeMgNi4 > PrMgNi4.
AB - According to the elemental ratio of Nd:Mg:Ni = 1:1:4, NdMgNi4 ternary alloy was synthesized by sintering pressed tablets of the powders milled for 6 h. The sintering conditions are: 673 K, 3 h → 873 K, 3 h → 973 K, 3 h. The XRD analysis shows that the REMgNi4 (RE = La, Ce, Pr, Nd) alloys are single component alloys, and that Mg2Ni exists during the process of formation of the alloys. The electrode properties of the REMgNi 4 alloys were measured by simulated battery test. It was found that the initial discharge capacity of Mg2Ni and LaMgNi4 alloys milled for 50 h is about 400 mAh/g, but a good cycle life has been observed for the electrode of milled LaMgNi4 alloy. As to REMgNi4 alloys, a slightly increasing discharge capacity was observed in the following order: LaMgNi4 > NdMgNi4 > CeMgNi4 > PrMgNi4.
KW - NdMgNi
KW - REMgNi
KW - Sintering
UR - http://www.scopus.com/inward/record.url?scp=9344241841&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2004.04.087
DO - 10.1016/j.jallcom.2004.04.087
M3 - Article
AN - SCOPUS:9344241841
SN - 0925-8388
VL - 384
SP - 279
EP - 282
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -