Redirigiendo al acceso original de articulo en 21 segundos...
Inicio  /  Batteries  /  Vol: 3 Núm: 4 Par: Decembe (2017)  /  Artículo
ARTÍCULO
TITULO

Effects of Boron-Incorporation in a V-Containing Zr-Based AB2 Metal Hydride Alloy

Shiuan Chang    
Kwo-Hsiung Young    
Taihei Ouchi    
Jean Nei and Xin Wu    

Resumen

In this study, boron, a metalloid element commonly used in semiconductor applications, was added in a V-containing Zr-based AB2 metal hydride alloy. In general, as the boron content in the alloy increased, the high-rate dischargeability, surface exchange current, and double-layer capacitance first decreased and then increased whereas charge-transfer resistance and dot product of charge-transfer resistance and double-layer capacitance changed in the opposite direction. Electrochemical and gaseous phase characteristics of two boron-containing alloys, with the same boron content detected by the inductively coupled plasma optical emission spectrometer, showed significant variations in performances due to the difference in phase abundance of a newly formed tetragonal V3B2 phase. This new phase contributes to the increases in electrochemical high-rate dischargeability, surface exchange current, charge-transfer resistances at room, and low temperatures. However, the V3B2 phase does not contribute to the hydrogen storage capacities in either gaseous phase and electrochemical environment.

 Artículos similares