Degradation of Pd/Nb30Ti35Co35/Pd hydrogen permeable membrane: a numerical description

Xiao Liang; Xinzhong Li; Hiromi Nagaumi; Jingjie Guo; Fausto Gallucci; Martin van Sint Annaland; Dongmei Liu

doi:10.1016/j.memsci.2020.117922

Degradation of Pd/Nb₃₀Ti₃₅Co₃₅/Pd hydrogen permeable membrane: a numerical description

Xiao Liang, Xinzhong Li (Corresponding author), Hiromi Nagaumi, Jingjie Guo, Fausto Gallucci, Martin van Sint Annaland, Dongmei Liu (Corresponding author)

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

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Abstract

The hydrogen flux degradation in hydrogen permeation tests of Pd/Nb₃₀Ti₃₅Co₃₅ (at.%)/Pd composite membranes was experimentally investigated at temperatures from 400 to 650 °C. The hydrogen fluxes through the Pd/Nb₃₀Ti₃₅Co₃₅/Pd membranes during isothermal long-term hydrogen permeation tests above 500 °C exhibit two hydrogen-flux-decline steps. The aggregation of the Pd-catalytic layer and the boundary layer formed between Pd and Nb₃₀Ti₃₅Co₃₅ due to interdiffusion were experimentally confirmed contributing to the degradation of the hydrogen flux through the Pd/Nb₃₀Ti₃₅Co₃₅/Pd membrane. Modelling work was carried out to reveal and validate the temperature-dependence of the two attributing factors to the degradation of hydrogen permeation flux.

Original language	English
Article number	117922
Number of pages	11
Journal	Journal of Membrane Science
Volume	601
DOIs	https://doi.org/10.1016/j.memsci.2020.117922
Publication status	Published - 1 Mar 2020

Keywords

Aggregation
Degradation
Hydrogen permeability
Interdiffusion
Pd/NbTiCo/Pd

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@article{e391ed5819ea40e5b5d5a9693e0e2b85,

title = "Degradation of Pd/Nb30Ti35Co35/Pd hydrogen permeable membrane: a numerical description",

abstract = "The hydrogen flux degradation in hydrogen permeation tests of Pd/Nb30Ti35Co35 (at.%)/Pd composite membranes was experimentally investigated at temperatures from 400 to 650 °C. The hydrogen fluxes through the Pd/Nb30Ti35Co35/Pd membranes during isothermal long-term hydrogen permeation tests above 500 °C exhibit two hydrogen-flux-decline steps. The aggregation of the Pd-catalytic layer and the boundary layer formed between Pd and Nb30Ti35Co35 due to interdiffusion were experimentally confirmed contributing to the degradation of the hydrogen flux through the Pd/Nb30Ti35Co35/Pd membrane. Modelling work was carried out to reveal and validate the temperature-dependence of the two attributing factors to the degradation of hydrogen permeation flux.",

keywords = "Aggregation, Degradation, Hydrogen permeability, Interdiffusion, Pd/NbTiCo/Pd",

author = "Xiao Liang and Xinzhong Li and Hiromi Nagaumi and Jingjie Guo and Fausto Gallucci and {van Sint Annaland}, Martin and Dongmei Liu",

year = "2020",

month = mar,

day = "1",

doi = "10.1016/j.memsci.2020.117922",

language = "English",

volume = "601",

journal = "Journal of Membrane Science",

issn = "0376-7388",

publisher = "Elsevier",

}

Degradation of Pd/Nb₃₀Ti₃₅Co₃₅/Pd hydrogen permeable membrane : a numerical description. / Liang, Xiao; Li, Xinzhong (Corresponding author); Nagaumi, Hiromi; Guo, Jingjie; Gallucci, Fausto ; van Sint Annaland, Martin; Liu, Dongmei (Corresponding author).

In: Journal of Membrane Science, Vol. 601, 117922, 01.03.2020.

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

TY - JOUR

T1 - Degradation of Pd/Nb30Ti35Co35/Pd hydrogen permeable membrane

T2 - a numerical description

AU - Liang, Xiao

AU - Li, Xinzhong

AU - Nagaumi, Hiromi

AU - Guo, Jingjie

AU - Gallucci, Fausto

AU - van Sint Annaland, Martin

AU - Liu, Dongmei

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The hydrogen flux degradation in hydrogen permeation tests of Pd/Nb30Ti35Co35 (at.%)/Pd composite membranes was experimentally investigated at temperatures from 400 to 650 °C. The hydrogen fluxes through the Pd/Nb30Ti35Co35/Pd membranes during isothermal long-term hydrogen permeation tests above 500 °C exhibit two hydrogen-flux-decline steps. The aggregation of the Pd-catalytic layer and the boundary layer formed between Pd and Nb30Ti35Co35 due to interdiffusion were experimentally confirmed contributing to the degradation of the hydrogen flux through the Pd/Nb30Ti35Co35/Pd membrane. Modelling work was carried out to reveal and validate the temperature-dependence of the two attributing factors to the degradation of hydrogen permeation flux.

AB - The hydrogen flux degradation in hydrogen permeation tests of Pd/Nb30Ti35Co35 (at.%)/Pd composite membranes was experimentally investigated at temperatures from 400 to 650 °C. The hydrogen fluxes through the Pd/Nb30Ti35Co35/Pd membranes during isothermal long-term hydrogen permeation tests above 500 °C exhibit two hydrogen-flux-decline steps. The aggregation of the Pd-catalytic layer and the boundary layer formed between Pd and Nb30Ti35Co35 due to interdiffusion were experimentally confirmed contributing to the degradation of the hydrogen flux through the Pd/Nb30Ti35Co35/Pd membrane. Modelling work was carried out to reveal and validate the temperature-dependence of the two attributing factors to the degradation of hydrogen permeation flux.

KW - Aggregation

KW - Degradation

KW - Hydrogen permeability

KW - Interdiffusion

KW - Pd/NbTiCo/Pd

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DO - 10.1016/j.memsci.2020.117922

M3 - Article

AN - SCOPUS:85078961491

VL - 601

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

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