TY - JOUR
T1 - Structure and electrochemical hydrogen storage properties of A 2B-type Ti-Zr-Ni alloys
AU - Zhao, Xiangyu
AU - Zhou, Junfeng
AU - Shen, Xiaodong
AU - Yang, Meng
AU - Ma, Liqun
PY - 2012/3
Y1 - 2012/3
N2 - Elemental substitution of part Ti by Zr has been carried out for Ti 2Ni alloy to form Ti 2-xZr xNi (x = 0, 0.2, 0.4) alloys. Mechanical milling and subsequent heat treatment have been used to prepare non-equilibrium Ti-Zr-Ni alloys. The effects of Zr addition on the structure and discharge properties of Ti 2Ni alloy were investigated. The addition of Zr could enhance the discharge capacity of the non-equilibrium Ti 2Ni alloy at electrolyte temperatures of 313 and 333 K. For instance, the non-equlibrium Ti 1.6Zr 0.4Ni alloy had a stable discharge capacity of about 210 mAh/g at 313 K. However, the protective surface layer formed during heat treatment was destroyed at a high electrolyte temperature of 333 K, and thus a severe capacity loss during cycling.
AB - Elemental substitution of part Ti by Zr has been carried out for Ti 2Ni alloy to form Ti 2-xZr xNi (x = 0, 0.2, 0.4) alloys. Mechanical milling and subsequent heat treatment have been used to prepare non-equilibrium Ti-Zr-Ni alloys. The effects of Zr addition on the structure and discharge properties of Ti 2Ni alloy were investigated. The addition of Zr could enhance the discharge capacity of the non-equilibrium Ti 2Ni alloy at electrolyte temperatures of 313 and 333 K. For instance, the non-equlibrium Ti 1.6Zr 0.4Ni alloy had a stable discharge capacity of about 210 mAh/g at 313 K. However, the protective surface layer formed during heat treatment was destroyed at a high electrolyte temperature of 333 K, and thus a severe capacity loss during cycling.
KW - Discharge properties
KW - Elemental substitution
KW - Hydrogen storage
KW - Ti-Zr-Ni
UR - http://www.scopus.com/inward/record.url?scp=84857648796&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2011.12.010
DO - 10.1016/j.ijhydene.2011.12.010
M3 - 文章
AN - SCOPUS:84857648796
SN - 0360-3199
VL - 37
SP - 5050
EP - 5055
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 6
ER -
