Hydrogen storage properties of Ti-Cr-Mn-M (M = V, Fe, Ni, Cu) alloys

Hong Wei Ge, Xin Hua Wang*, Yan Zhang, Hui Li, Li Xin Chen, Shou Quan Li, Mi Yan, Chang Pin Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In order to improve the hydrogen storage properties of Ti (Cr-Mn)2 alloys, over stoichiometry of A side and partial substitution of Mn by transition metals were adopted, and the hydrogen storage properties of Tix (Cr-Mn-M)2 (x = 1.0, 1.1; M = V, Fe, Ni, Cu) alloys were investigated. The experimental results showed that the alloys after partial substitution of Mn by V, Fe, Ni, Cu remain C14 laves phase structure, but their cell volume increase. After alloying with V, Fe, Ni and Cu, the activation properties of the alloys are improved remarkably, the hydrogen storage capacities increase, and the hydriding/dehydriding pressure hysteresis decrease. Alloying with Fe leads to increase of dehydriding pressure, while alloying with V, Ni and Cu leads to decrease of hydriding/dehydriding pressure, this is due to the increase of cell volume. The hydrogen absorption and desorption capacities of Ti1.1Cr1.2Mn0.5Cu0.3 reach 1.95wt% and 1.72wt%, respectively. Using this alloy a metal hydride hybrid high-pressure hydrogen storage vessel with working pressure of 40 MPa was composed and its hydrogen storage density was calculated. When the volume fraction of hydrogen storage alloy reaches 0.20, the volumetric hydrogen storage density of this hybrid hydrogen storage vessel by more increases than 57%.

Original languageEnglish
Pages (from-to)420-423
Number of pages4
JournalGongneng Cailiao/Journal of Functional Materials
Issue number3
StatePublished - Mar 2009
Externally publishedYes


  • High-pressure hydrogen
  • Hydrogen storage alloys
  • Hydrogen storage vessel
  • Metal hydride


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