AUTHOR=Wu Kaiyao , Cai Daqian , Shao Kaimei , Xue Tuguang , Zhang Peng , Li Wei , Lin Huai-Jun TITLE=Effect of CeH2.73-CeO2 Composites on the Desorption Properties of Mg2NiH4 JOURNAL=Frontiers in Chemistry VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00293 DOI=10.3389/fchem.2020.00293 ISSN=2296-2646 ABSTRACT=
A series of CeH2.73/CeO2 composites with different ratios of hydride and oxide phases are prepared from the pure cerium hydride via oxidation treatments in the air at room temperature, and they are subsequently doped into Mg2NiH4 by ball milling. The desorption properties of the as-prepared Mg2NiH4+CeH2.73/CeO2 composites are studied by thermogravimetry and differential scanning calorimetery. Microstructures are studied by scanning electron microscopy and transmission electron microscopy, and the phase transitions during dehydrogenation are analyzed through