Incorporation of a Pd catalyst at the fuel electrode of a thin-film-based solid oxide cell by multi-layer deposition and its impact on low-temperature co-electrolysis

Cam Anh Thieu, Jongsup Hong, Hyoungchul Kim, Kyung Joong Yoon, Jong Ho Lee, Byung Kook Kim, Ji Won Son

Research output: Contribution to journalArticle

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Abstract

To enhance the electrochemical performance and syngas production in low-temperature co-electrolysis (LT-Co-EC), incorporation of Pd into the nickel-yttria-stabilized zirconia (Ni-YSZ) fuel electrode functional layer (FEFL) of a thin film-based solid oxide cell (TF-SOC) by multi-layer thin film deposition was investigated. The optimal configuration to insert a Pd layer without disturbing the surface and cross-sectional microstructure of the FEFL was fabricated by alternating multi-layer deposition of Pd by sputtering and nickel oxide-yttria-stabilized zirconia (NiO-YSZ) by pulsed laser deposition (PLD). TF-SOCs with Pd (Pd-cell) and without Pd (Ref-cell) were fabricated and compared based on the electrochemical reaction and syngas production in LT-Co-EC. The results showed that the catalytic activity by forming the Pd-Ni alloy on the electrochemical performance and thermochemical reaction are improved by Pd incorporation at low temperatures (≤600 °C). Detailed microstructural analyses showed that Pd distributes from the electrode/electrolyte interface to a depth of several tens of microns in the anode support and forms a nano-structured Ni-Pd alloy, which contributes to improving the electrochemical reaction and thermochemical reactions such as water-gas-shift (WGS). It was also found that the performance stability was superior in the Pd-cell because pore array generation at the electrolyte/electrode interface was significantly suppressed in comparison with that of the Ref-cell.

Original languageEnglish
Pages (from-to)7433-7444
Number of pages12
JournalJournal of Materials Chemistry A
Volume5
Issue number16
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Electrolysis
Oxides
Thin films
Electrodes
Catalysts
Yttria stabilized zirconia
Electrolytes
Temperature
Nickel oxide
Water gas shift
Pulsed laser deposition
Nickel
Sputtering
Catalyst activity
Anodes
Microstructure
nickel-palladium alloy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Thieu, Cam Anh ; Hong, Jongsup ; Kim, Hyoungchul ; Yoon, Kyung Joong ; Lee, Jong Ho ; Kim, Byung Kook ; Son, Ji Won. / Incorporation of a Pd catalyst at the fuel electrode of a thin-film-based solid oxide cell by multi-layer deposition and its impact on low-temperature co-electrolysis. In: Journal of Materials Chemistry A. 2017 ; Vol. 5, No. 16. pp. 7433-7444.
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abstract = "To enhance the electrochemical performance and syngas production in low-temperature co-electrolysis (LT-Co-EC), incorporation of Pd into the nickel-yttria-stabilized zirconia (Ni-YSZ) fuel electrode functional layer (FEFL) of a thin film-based solid oxide cell (TF-SOC) by multi-layer thin film deposition was investigated. The optimal configuration to insert a Pd layer without disturbing the surface and cross-sectional microstructure of the FEFL was fabricated by alternating multi-layer deposition of Pd by sputtering and nickel oxide-yttria-stabilized zirconia (NiO-YSZ) by pulsed laser deposition (PLD). TF-SOCs with Pd (Pd-cell) and without Pd (Ref-cell) were fabricated and compared based on the electrochemical reaction and syngas production in LT-Co-EC. The results showed that the catalytic activity by forming the Pd-Ni alloy on the electrochemical performance and thermochemical reaction are improved by Pd incorporation at low temperatures (≤600 °C). Detailed microstructural analyses showed that Pd distributes from the electrode/electrolyte interface to a depth of several tens of microns in the anode support and forms a nano-structured Ni-Pd alloy, which contributes to improving the electrochemical reaction and thermochemical reactions such as water-gas-shift (WGS). It was also found that the performance stability was superior in the Pd-cell because pore array generation at the electrolyte/electrode interface was significantly suppressed in comparison with that of the Ref-cell.",
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Incorporation of a Pd catalyst at the fuel electrode of a thin-film-based solid oxide cell by multi-layer deposition and its impact on low-temperature co-electrolysis. / Thieu, Cam Anh; Hong, Jongsup; Kim, Hyoungchul; Yoon, Kyung Joong; Lee, Jong Ho; Kim, Byung Kook; Son, Ji Won.

In: Journal of Materials Chemistry A, Vol. 5, No. 16, 01.01.2017, p. 7433-7444.

Research output: Contribution to journalArticle

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T1 - Incorporation of a Pd catalyst at the fuel electrode of a thin-film-based solid oxide cell by multi-layer deposition and its impact on low-temperature co-electrolysis

AU - Thieu, Cam Anh

AU - Hong, Jongsup

AU - Kim, Hyoungchul

AU - Yoon, Kyung Joong

AU - Lee, Jong Ho

AU - Kim, Byung Kook

AU - Son, Ji Won

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N2 - To enhance the electrochemical performance and syngas production in low-temperature co-electrolysis (LT-Co-EC), incorporation of Pd into the nickel-yttria-stabilized zirconia (Ni-YSZ) fuel electrode functional layer (FEFL) of a thin film-based solid oxide cell (TF-SOC) by multi-layer thin film deposition was investigated. The optimal configuration to insert a Pd layer without disturbing the surface and cross-sectional microstructure of the FEFL was fabricated by alternating multi-layer deposition of Pd by sputtering and nickel oxide-yttria-stabilized zirconia (NiO-YSZ) by pulsed laser deposition (PLD). TF-SOCs with Pd (Pd-cell) and without Pd (Ref-cell) were fabricated and compared based on the electrochemical reaction and syngas production in LT-Co-EC. The results showed that the catalytic activity by forming the Pd-Ni alloy on the electrochemical performance and thermochemical reaction are improved by Pd incorporation at low temperatures (≤600 °C). Detailed microstructural analyses showed that Pd distributes from the electrode/electrolyte interface to a depth of several tens of microns in the anode support and forms a nano-structured Ni-Pd alloy, which contributes to improving the electrochemical reaction and thermochemical reactions such as water-gas-shift (WGS). It was also found that the performance stability was superior in the Pd-cell because pore array generation at the electrolyte/electrode interface was significantly suppressed in comparison with that of the Ref-cell.

AB - To enhance the electrochemical performance and syngas production in low-temperature co-electrolysis (LT-Co-EC), incorporation of Pd into the nickel-yttria-stabilized zirconia (Ni-YSZ) fuel electrode functional layer (FEFL) of a thin film-based solid oxide cell (TF-SOC) by multi-layer thin film deposition was investigated. The optimal configuration to insert a Pd layer without disturbing the surface and cross-sectional microstructure of the FEFL was fabricated by alternating multi-layer deposition of Pd by sputtering and nickel oxide-yttria-stabilized zirconia (NiO-YSZ) by pulsed laser deposition (PLD). TF-SOCs with Pd (Pd-cell) and without Pd (Ref-cell) were fabricated and compared based on the electrochemical reaction and syngas production in LT-Co-EC. The results showed that the catalytic activity by forming the Pd-Ni alloy on the electrochemical performance and thermochemical reaction are improved by Pd incorporation at low temperatures (≤600 °C). Detailed microstructural analyses showed that Pd distributes from the electrode/electrolyte interface to a depth of several tens of microns in the anode support and forms a nano-structured Ni-Pd alloy, which contributes to improving the electrochemical reaction and thermochemical reactions such as water-gas-shift (WGS). It was also found that the performance stability was superior in the Pd-cell because pore array generation at the electrolyte/electrode interface was significantly suppressed in comparison with that of the Ref-cell.

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