A kinetic model of hydrogen absorption in CeMg12

S. H. Lim; J. Y. Lee

doi:10.1016/0360-3199(83)90052-6

A kinetic model of hydrogen absorption in CeMg₁₂

S. H. Lim, J. Y. Lee

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Comparing kinetic equations derived from a theoretical model with experimental data published, the kinetic mechanism of hydriding reaction of CeMg₁₂ was analysed. At the initial stage the reaction is controlled by chemisorption of hydrogen on the metal surface and the reacted fraction (F) is expressed as a function of time (t) and temperature (T) F=(1.19 × 10²) (P_o - P_eq) T 1 2 exp(-3560cal/RT)t in the range of 0 ≤ F ≤ 0.4. The later stage of the reaction is controlled by another mechanism of metal/hydride interface chemical reaction or hydrogen diffusion in the hydride phase which cannot be clearly distinguished at the moment.

Original language	English
Pages (from-to)	369-371
Number of pages	3
Journal	International Journal of Hydrogen Energy
Volume	8
Issue number	5
DOIs	https://doi.org/10.1016/0360-3199(83)90052-6
Publication status	Published - 1983
Externally published	Yes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/0360-3199(83)90052-6

Cite this

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AU - Lim, S. H.

AU - Lee, J. Y.

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AB - Comparing kinetic equations derived from a theoretical model with experimental data published, the kinetic mechanism of hydriding reaction of CeMg12 was analysed. At the initial stage the reaction is controlled by chemisorption of hydrogen on the metal surface and the reacted fraction (F) is expressed as a function of time (t) and temperature (T) F=(1.19 × 102) (Po - Peq) T 1 2 exp(-3560cal/RT)t in the range of 0 ≤ F ≤ 0.4. The later stage of the reaction is controlled by another mechanism of metal/hydride interface chemical reaction or hydrogen diffusion in the hydride phase which cannot be clearly distinguished at the moment.

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