HYDROGEN DESORPTION STUDIES ON HYDROGEN STORAGE UNIT ST-90(R) CONTAINING THE ALLOY MMNI4.6AL0.4 - IDENTIFICATION OF 2 HYDRIDE PHASES

Authors
DHATHATHREYAN KS BRINDA BL DEVANATHAN S PARTHASARATHY S
Citation
Ks. Dhathathreyan et al., HYDROGEN DESORPTION STUDIES ON HYDROGEN STORAGE UNIT ST-90(R) CONTAINING THE ALLOY MMNI4.6AL0.4 - IDENTIFICATION OF 2 HYDRIDE PHASES, International journal of hydrogen energy, 18(5), 1993, pp. 391-396
Citations number
25
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
18
Issue
5
Year of publication
1993
Pages
391 - 396
Database
ISI
SICI code
0360-3199(1993)18:5<391:HDSOHS>2.0.ZU;2-O
Abstract
The evidence for the formation of two different hydride phases corresp onding to MmNi4.6Al0.4H2.2 and MmNi4.6Al0.4H4.2 in the alloy system Mm Ni4.6Al0.4 is presented. The results are based on desorption isotherms in the temperature range 293-343K and pressures up to 25 atm, and des orption by differential heating on 16-18 kg weight of the alloy contai ned in the storage device ST-90(R). In the course of its evaluation as au storage device coupled to au PEM fuel cell, the thermodynamic para meters DELTAH and DELTAS are also reported.