TY - JOUR
T1 - Hydrogen absorption in Zr(AlxB1-x)2 (BFe, Co) laves phase compounds
AU - Jacob, I.
AU - Shaltiel, D.
N1 - Funding Information:
• Supported by a grant from the National Council for Research and Development, Israel, and the KFA, Julich, Germany.
PY - 1978/1/1
Y1 - 1978/1/1
N2 - The hydrogen absorption capacity of the systems Zr(AlxFe1-x)2 and Zr(AlxCo1-x)2 (0≤ x ≤1) was measured at hydrogen pressure of 70 atm and room temperature and at 40 atm and liquid nitrogen temperature. The two systems present very interesting and unexpected results. A dramatic rise in the hydrogen capacity occurs for small x values similar to previous results for the systems Zr(AxB1-x)2 (A V, Cr, Mn; B Fe, Co; 0≤x≤1). The maximum hydrogen content in both systems is achieved for x ≈ 2 12 at 40 atm and 80 K. Further increase of the Al content leads, however, to a steep decrease in the hydrogen capacity. This general behaviour is well described by a phenomenological model, recently proposed by us, and thus supporting the importance of short-range neighbouring effects for the hydrogen absorption capacity. The influence of Al on the hydrogen sorption properties in different intermetallic compounds is discussed.
AB - The hydrogen absorption capacity of the systems Zr(AlxFe1-x)2 and Zr(AlxCo1-x)2 (0≤ x ≤1) was measured at hydrogen pressure of 70 atm and room temperature and at 40 atm and liquid nitrogen temperature. The two systems present very interesting and unexpected results. A dramatic rise in the hydrogen capacity occurs for small x values similar to previous results for the systems Zr(AxB1-x)2 (A V, Cr, Mn; B Fe, Co; 0≤x≤1). The maximum hydrogen content in both systems is achieved for x ≈ 2 12 at 40 atm and 80 K. Further increase of the Al content leads, however, to a steep decrease in the hydrogen capacity. This general behaviour is well described by a phenomenological model, recently proposed by us, and thus supporting the importance of short-range neighbouring effects for the hydrogen absorption capacity. The influence of Al on the hydrogen sorption properties in different intermetallic compounds is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0017991790&partnerID=8YFLogxK
U2 - 10.1016/0038-1098(78)90826-8
DO - 10.1016/0038-1098(78)90826-8
M3 - Article
AN - SCOPUS:0017991790
SN - 0038-1098
VL - 27
SP - 175
EP - 180
JO - Solid State Communications
JF - Solid State Communications
IS - 2
ER -