Dynamics of hydrogen in Pr2Fe17H4 and Pr2Fe17H5

Eugene Mamontov; Terrence J. Udovic; John J. Rush; Olivier Isnard

Dynamics of hydrogen in Pr₂Fe₁₇H₄ and Pr₂Fe₁₇H₅

Eugene Mamontov
, Terrence J. Udovic
, John J. Rush
, Olivier Isnard

Research output: Contribution to journal › Conference article › peer-review

Abstract

We describe a study of the dynamics of hydrogen in Pr₂Fe ₁₇H₄, where isolated hexagons formed by the interstitial tetrahedral (t) sites of the metal lattice are populated by mobile hydrogen atoms. An activation energy of 0.10 eV has been determined for a localized jump process involving the hopping of these hydrogen atoms among adjacent vertices of each hexagon, slightly lower than that for hydrogen hopping in Pr ₂Fe₁₇H₅, where each hexagon is occupied by two hydrogen atoms.

Original language	English
Pages (from-to)	183-187
Number of pages	5
Journal	Materials Research Society Symposium Proceedings
Volume	885
State	Published - 2006
Externally published	Yes
Event	2005 MRS Fall Meeting - Boston, MA, United States Duration: Nov 28 2005 → Dec 2 2005

Cite this

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title = "Dynamics of hydrogen in Pr2Fe17H4 and Pr2Fe17H5",

abstract = "We describe a study of the dynamics of hydrogen in Pr2Fe 17H4, where isolated hexagons formed by the interstitial tetrahedral (t) sites of the metal lattice are populated by mobile hydrogen atoms. An activation energy of 0.10 eV has been determined for a localized jump process involving the hopping of these hydrogen atoms among adjacent vertices of each hexagon, slightly lower than that for hydrogen hopping in Pr 2Fe17H5, where each hexagon is occupied by two hydrogen atoms.",

author = "Eugene Mamontov and Udovic, \{Terrence J.\} and Rush, \{John J.\} and Olivier Isnard",

year = "2006",

language = "English",

volume = "885",

pages = "183--187",

journal = "Materials Research Society Symposium Proceedings",

issn = "0272-9172",

note = "2005 MRS Fall Meeting ; Conference date: 28-11-2005 Through 02-12-2005",

}

TY - JOUR

T1 - Dynamics of hydrogen in Pr2Fe17H4 and Pr2Fe17H5

AU - Mamontov, Eugene

AU - Udovic, Terrence J.

AU - Rush, John J.

AU - Isnard, Olivier

PY - 2006

Y1 - 2006

N2 - We describe a study of the dynamics of hydrogen in Pr2Fe 17H4, where isolated hexagons formed by the interstitial tetrahedral (t) sites of the metal lattice are populated by mobile hydrogen atoms. An activation energy of 0.10 eV has been determined for a localized jump process involving the hopping of these hydrogen atoms among adjacent vertices of each hexagon, slightly lower than that for hydrogen hopping in Pr 2Fe17H5, where each hexagon is occupied by two hydrogen atoms.

AB - We describe a study of the dynamics of hydrogen in Pr2Fe 17H4, where isolated hexagons formed by the interstitial tetrahedral (t) sites of the metal lattice are populated by mobile hydrogen atoms. An activation energy of 0.10 eV has been determined for a localized jump process involving the hopping of these hydrogen atoms among adjacent vertices of each hexagon, slightly lower than that for hydrogen hopping in Pr 2Fe17H5, where each hexagon is occupied by two hydrogen atoms.

UR - https://www.scopus.com/pages/publications/33747335235

M3 - Conference article

AN - SCOPUS:33747335235

SN - 0272-9172

VL - 885

SP - 183

EP - 187

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

T2 - 2005 MRS Fall Meeting

Y2 - 28 November 2005 through 2 December 2005

ER -

Dynamics of hydrogen in Pr₂Fe₁₇H₄ and Pr₂Fe₁₇H₅

Abstract

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