Alloying effects on the hydride formation of Zr(Mn1−xCox)2

Autor:	Kaori Yudou, Kazuyoshi Ichinose, Masao Matsuyama, Kayoko Okazaki, Kuniaki Watanabe, Masanori Hara, Emiko Kinoshita
Rok vydání:	2011
Předmět:	Crystallography Fuel Technology Hydrogen Renewable Energy Sustainability and the Environment Chemistry Hydride Metallurgy Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Plateau (mathematics) Cobalt
Zdroj:	International Journal of Hydrogen Energy. 36:12333-12337
ISSN:	0360-3199
DOI:	10.1016/j.ijhydene.2011.07.024
Popis:	To study the alloying effects on ZrMn 2 –H system, thermodynamic properties of Zr(Mn 1− x Co x ) 2 hydride were measured by volumetric method. ZrMn 2 gave a single plateau region in the pressure–composition isotherm. On the other hand, double plateaus were clearly observed in Zr(Mn 0.7 Co 0.3 ) 2 and Zr(Mn 0.6 Co 0.4 ) 2 –H systems. The appearance of the double plateau characteristics would be explained in view of the hydrogen binding in the tetrahedral occupation sites in Zr(Mn 1− x Co x ) 2 . Since the hydrogen binding in the tetrahedral 2ZrMnCo site would be less stable than that in the 2Zr2Mn site, the equilibrium pressure increases with increasing cobalt content. The appearance of the first plateau was ascribed the increase in the bonding of Mn–H in 2Zr2Mn site adjoining the 2ZrMnCo site.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9971b2b95f9f13ed235002f520883e68 https://doi.org/10.1016/j.ijhydene.2011.07.024 Zobrazit plný text záznamu Full Text from ScienceDirect