High Temperature Co‐Electrolysis of Steam and CO2 in an SOC Stack: Performance and Durability

Ming Chen; Jens Valdemar Thorvald Høgh; J. U. Nielsen; Janet Jonna Bentzen; Sune Dalgaard Ebbesen; Peter Vang Hendriksen

doi:10.1002/fuce.201200169

High Temperature Co‐Electrolysis of Steam and CO₂ in an SOC Stack: Performance and Durability

Ming Chen, Jens Valdemar Thorvald Høgh, J. U. Nielsen, Janet Jonna Bentzen, Sune Dalgaard Ebbesen, Peter Vang Hendriksen

Department of Energy Conversion and Storage

Haldor Topsoe AS

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

Abstract

In this work, co‐electrolysis of steam and carbon dioxide was studied in a Topsoe Fuel Cell (TOFC®) 10‐cell stack, containing three different types of Ni/yttria stabilized zirconia (YSZ) electrode supported solid oxide electrolysis cells with a footprint of 12 × 12 cm. The stack was operated at 800 °C and –0.75 A cm^–2 with 60% conversion for a period of 1,000 h. One type of the cells showed no long term degradation but actually activation during the entire electrolysis period, while the other two types degraded. The performance and durability of the different cell types is discussed with respect to cell material composition and microstructure. The results of this study show that long term electrolysis is feasible without notable degradation at 800 °C and a current density of –0.75 A cm^–2.

Original language	English
Journal	Fuel Cells
Volume	13
Issue number	4
Pages (from-to)	638-645
ISSN	1615-6846
DOIs	https://doi.org/10.1002/fuce.201200169
Publication status	Published - 2013
Event	10th European SOFC Forum - Kultur- und Kongresszentrum Luzern, Luzern, Switzerland Duration: 26 Jun 2012 → 29 Jun 2012

Conference

Conference	10th European SOFC Forum
Location	Kultur- und Kongresszentrum Luzern
Country/Territory	Switzerland
City	Luzern
Period	26/06/2012 → 29/06/2012

Keywords

Carbon Dioxide
Co-Electrolysis
Energy Conversion
Fuel Cell
High Temperature Electrolysis
Solid Oxide Electrolysis Cell (SOEC)

Access to Document

10.1002/fuce.201200169

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Cite this

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title = "High Temperature Co‐Electrolysis of Steam and CO2 in an SOC Stack: Performance and Durability",

abstract = "In this work, co‐electrolysis of steam and carbon dioxide was studied in a Topsoe Fuel Cell (TOFC{\textregistered}) 10‐cell stack, containing three different types of Ni/yttria stabilized zirconia (YSZ) electrode supported solid oxide electrolysis cells with a footprint of 12 × 12 cm. The stack was operated at 800 °C and –0.75 A cm–2 with 60% conversion for a period of 1,000 h. One type of the cells showed no long term degradation but actually activation during the entire electrolysis period, while the other two types degraded. The performance and durability of the different cell types is discussed with respect to cell material composition and microstructure. The results of this study show that long term electrolysis is feasible without notable degradation at 800 °C and a current density of –0.75 A cm–2.",

keywords = "Carbon Dioxide, Co-Electrolysis, Energy Conversion, Fuel Cell, High Temperature Electrolysis, Solid Oxide Electrolysis Cell (SOEC)",

author = "Ming Chen and H{\o}gh, {Jens Valdemar Thorvald} and Nielsen, {J. U.} and Bentzen, {Janet Jonna} and Ebbesen, {Sune Dalgaard} and Hendriksen, {Peter Vang}",

year = "2013",

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T1 - High Temperature Co‐Electrolysis of Steam and CO2 in an SOC Stack: Performance and Durability

AU - Chen, Ming

AU - Høgh, Jens Valdemar Thorvald

AU - Nielsen, J. U.

AU - Bentzen, Janet Jonna

AU - Ebbesen, Sune Dalgaard

AU - Hendriksen, Peter Vang

PY - 2013

Y1 - 2013

N2 - In this work, co‐electrolysis of steam and carbon dioxide was studied in a Topsoe Fuel Cell (TOFC®) 10‐cell stack, containing three different types of Ni/yttria stabilized zirconia (YSZ) electrode supported solid oxide electrolysis cells with a footprint of 12 × 12 cm. The stack was operated at 800 °C and –0.75 A cm–2 with 60% conversion for a period of 1,000 h. One type of the cells showed no long term degradation but actually activation during the entire electrolysis period, while the other two types degraded. The performance and durability of the different cell types is discussed with respect to cell material composition and microstructure. The results of this study show that long term electrolysis is feasible without notable degradation at 800 °C and a current density of –0.75 A cm–2.

AB - In this work, co‐electrolysis of steam and carbon dioxide was studied in a Topsoe Fuel Cell (TOFC®) 10‐cell stack, containing three different types of Ni/yttria stabilized zirconia (YSZ) electrode supported solid oxide electrolysis cells with a footprint of 12 × 12 cm. The stack was operated at 800 °C and –0.75 A cm–2 with 60% conversion for a period of 1,000 h. One type of the cells showed no long term degradation but actually activation during the entire electrolysis period, while the other two types degraded. The performance and durability of the different cell types is discussed with respect to cell material composition and microstructure. The results of this study show that long term electrolysis is feasible without notable degradation at 800 °C and a current density of –0.75 A cm–2.

KW - Carbon Dioxide

KW - Co-Electrolysis

KW - Energy Conversion

KW - Fuel Cell

KW - High Temperature Electrolysis

KW - Solid Oxide Electrolysis Cell (SOEC)

U2 - 10.1002/fuce.201200169

DO - 10.1002/fuce.201200169

M3 - Conference article

SN - 1615-6846

VL - 13

SP - 638

EP - 645

JO - Fuel Cells

JF - Fuel Cells

IS - 4

T2 - 10th European SOFC Forum

Y2 - 26 June 2012 through 29 June 2012

ER -