Effect of a Pt-ZrO2 protection layer on the performance and morphology of Pd-Au alloy membrane during H2S exposure

Sung Wook Lee; Duck Kyu Oh; Jin Woo Park; Chun Boo Lee; Dong Wook Lee; Jong Soo Park; Sung Hyun Kim; Kyung Ran Hwang

doi:10.1016/j.jallcom.2015.03.210

Effect of a Pt-ZrO₂ protection layer on the performance and morphology of Pd-Au alloy membrane during H₂S exposure

Sung Wook Lee, Duck Kyu Oh, Jin Woo Park, Chun Boo Lee, Dong Wook Lee, Jong Soo Park, Sung Hyun Kim, Kyung Ran Hwang

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

13 Citations (Scopus)

Abstract

We prepared a disc-type Pd-Au alloy membrane, on which a Pt-ZrO₂ protection layer was deposited to protect the hydrogen membrane from H₂S poisoning. The effect of the protection layer on the performance and morphology of the Pd-Au alloy membrane during H₂S exposure was investigated. The hydrogen flux did not decrease significantly in the presence of the protection layer, which covered the surface of the membrane. When the membrane with the protection layer was exposed to a mixture of H₂S, the hydrogen flux decreased to 35% of the original value, which is half of the decrease observed with the bare Pd-Au membrane. The hydrogen flux of the poisoned membrane was almost completely recovered after changing back to pure H₂ gas. Under harsh conditions, the membrane with the protection layer was found to retain the hydrogen flux and selectivity, while the selectivity of the bare membrane decreased to zero, indicating that it was disintegrated. This means that the Pt-ZrO₂ layer prevents direct contact between Pd and H₂S, thus protecting the Pd membrane from poisoning.

Original language	English
Pages (from-to)	210-215
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	641
DOIs	https://doi.org/10.1016/j.jallcom.2015.03.210
Publication status	Published - 2015 Aug 1

Bibliographical note

Funding Information:
This work was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 20143030040820 ).

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Keywords

Hydrogen
Hydrogen sulfide
Pd alloy membrane
Protection layer
Pt-ZrO

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2015.03.210

Cite this

@article{19dff65bd6014a198304e4378072ff72,

title = "Effect of a Pt-ZrO2 protection layer on the performance and morphology of Pd-Au alloy membrane during H2S exposure",

abstract = "We prepared a disc-type Pd-Au alloy membrane, on which a Pt-ZrO2 protection layer was deposited to protect the hydrogen membrane from H2S poisoning. The effect of the protection layer on the performance and morphology of the Pd-Au alloy membrane during H2S exposure was investigated. The hydrogen flux did not decrease significantly in the presence of the protection layer, which covered the surface of the membrane. When the membrane with the protection layer was exposed to a mixture of H2S, the hydrogen flux decreased to 35% of the original value, which is half of the decrease observed with the bare Pd-Au membrane. The hydrogen flux of the poisoned membrane was almost completely recovered after changing back to pure H2 gas. Under harsh conditions, the membrane with the protection layer was found to retain the hydrogen flux and selectivity, while the selectivity of the bare membrane decreased to zero, indicating that it was disintegrated. This means that the Pt-ZrO2 layer prevents direct contact between Pd and H2S, thus protecting the Pd membrane from poisoning.",

keywords = "Hydrogen, Hydrogen sulfide, Pd alloy membrane, Protection layer, Pt-ZrO",

author = "Lee, {Sung Wook} and Oh, {Duck Kyu} and Park, {Jin Woo} and Lee, {Chun Boo} and Lee, {Dong Wook} and Park, {Jong Soo} and Kim, {Sung Hyun} and Hwang, {Kyung Ran}",

note = "Funding Information: This work was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 20143030040820 ). Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. All rights reserved.",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.jallcom.2015.03.210",

language = "English",

volume = "641",

pages = "210--215",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Effect of a Pt-ZrO2 protection layer on the performance and morphology of Pd-Au alloy membrane during H2S exposure

AU - Lee, Sung Wook

AU - Oh, Duck Kyu

AU - Park, Jin Woo

AU - Lee, Chun Boo

AU - Lee, Dong Wook

AU - Park, Jong Soo

AU - Kim, Sung Hyun

AU - Hwang, Kyung Ran

N1 - Funding Information: This work was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 20143030040820 ). Publisher Copyright: © 2015 Elsevier B.V. All rights reserved.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - We prepared a disc-type Pd-Au alloy membrane, on which a Pt-ZrO2 protection layer was deposited to protect the hydrogen membrane from H2S poisoning. The effect of the protection layer on the performance and morphology of the Pd-Au alloy membrane during H2S exposure was investigated. The hydrogen flux did not decrease significantly in the presence of the protection layer, which covered the surface of the membrane. When the membrane with the protection layer was exposed to a mixture of H2S, the hydrogen flux decreased to 35% of the original value, which is half of the decrease observed with the bare Pd-Au membrane. The hydrogen flux of the poisoned membrane was almost completely recovered after changing back to pure H2 gas. Under harsh conditions, the membrane with the protection layer was found to retain the hydrogen flux and selectivity, while the selectivity of the bare membrane decreased to zero, indicating that it was disintegrated. This means that the Pt-ZrO2 layer prevents direct contact between Pd and H2S, thus protecting the Pd membrane from poisoning.

AB - We prepared a disc-type Pd-Au alloy membrane, on which a Pt-ZrO2 protection layer was deposited to protect the hydrogen membrane from H2S poisoning. The effect of the protection layer on the performance and morphology of the Pd-Au alloy membrane during H2S exposure was investigated. The hydrogen flux did not decrease significantly in the presence of the protection layer, which covered the surface of the membrane. When the membrane with the protection layer was exposed to a mixture of H2S, the hydrogen flux decreased to 35% of the original value, which is half of the decrease observed with the bare Pd-Au membrane. The hydrogen flux of the poisoned membrane was almost completely recovered after changing back to pure H2 gas. Under harsh conditions, the membrane with the protection layer was found to retain the hydrogen flux and selectivity, while the selectivity of the bare membrane decreased to zero, indicating that it was disintegrated. This means that the Pt-ZrO2 layer prevents direct contact between Pd and H2S, thus protecting the Pd membrane from poisoning.

KW - Hydrogen

KW - Hydrogen sulfide

KW - Pd alloy membrane

KW - Protection layer

KW - Pt-ZrO

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U2 - 10.1016/j.jallcom.2015.03.210

DO - 10.1016/j.jallcom.2015.03.210

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JO - Journal of Alloys and Compounds

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