@article{0eeffb139d0c427b9ce8d3728c582abf,
title = "A new ternary magnesium-titanium hydride Mg7TiHx with hydrogen desorption properties better than both binary magnesium and titanium hydrides",
abstract = "A magnesium based titanium doped hydride was prepared in a high-pressure anvil cell by reacting a mixture of MgH2 and TiH1.9 at 8GPa and 873K. The metal structure has a Ca7Ge type structure (a = 9.532(2){\AA}, space group Fm{\=3}m (no. 225), Z = 4, V = 866.06{\AA}3). The refined metal atom composition Mg7Ti was almost in line with EDS analysis. This means that the new magnesium-titanium hydride has a structure that is more related to TiH1.9 than to MgH2. The thermal properties of the new compound were also studied by TPD analysis. The new hydride, Mg7TiHx exhibits 5.5mass% (x ≈ 12.7) and decomposes into Mg and TiH1.9 upon releasing 4.7mass% of hydrogen around 605K, that is at a 130 and 220K lower desorption temperature compared to MgH2 and TiH1.9, respectively.",
keywords = "High pressure, Hydrogen, Magnesium, Metal hydrides, Titanium",
author = "Daisuke Kyoi and Toyoto Sato and Ewa R{\"o}nnebro and Naoyuki Kitamura and Atsushi Ueda and Mikio Ito and Shigeru Katsuyama and Shigeta Hara and Dag Nor{\'e}us and Tetsuo Sakai",
note = "Funding Information: This work was supported by “Priority Assistance of the Formation of Worldwide Renowned Centers of Research, The 21st COE Program (Project: Center of Excellence for Advanced Structural and Functional Materials Designs)” from the Ministry of Education, Sports, Culture, Science and Technology of Japan. R{\"o}nnebro thanks AIST Kansai Center for financial support. Authors are grateful to Prof. Y. Fukai of Chuo University, for his technical advice on the NaCl capsule method.",
year = "2004",
month = jun,
day = "9",
doi = "10.1016/j.jallcom.2003.08.098",
language = "English",
volume = "372",
pages = "213--217",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "1-2",
}