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Title: Metal-Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Abstract

High-temperature electrolysis (HTE) using solid oxide electrolysis cells (SOECs) is a promising hydrogen production technology and has attracted substantial research attention over the last decade. While most studies are conducted on hydrogen electrode-supported type cells, SOEC operation using metal-supported cells has received minimal attention. The development of metal-supported SOECs with performance similar to the best conventional SOECs is reported. These cells have stainless steel supports on both sides, 10Sc1CeSZ electrolyte and electrode backbones, and nano-structured catalysts infiltrated on both hydrogen and oxygen electrode sides. Samarium-doped ceria (SDC) mixed with Ni is infiltrated as a hydrogen electrode catalyst, and the effect of ceria:Ni ratio is studied. On the oxygen electrode side, catalysts including lanthanum strontium manganite (LSM), lanthanum strontium cobalt ferrite (LSCF), praseodymium oxide (Pr 6O 11), and their composite catalysts with SDC (i.e., LSM-SDC, LSCF-SDC, and Pr 6O 11-SDC) are compared. Utilizing the materials with highest catalytic activity (Pr 6O 11-SDC and SDC40-Ni60) and optimizing the catalyst infiltration processes, excellent electrolysis performance of metal-supported cells is achieved. Current densities of –5.31, –4.09, –2.64, and –1.62 A cm –2 are accomplished at 1.3 V and 50 vol% steam content at 800, 750, 700, and 650 °C, respectively.

Authors:
ORCiD logo [1];  [1];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1515781
Alternate Identifier(s):
OSTI ID: 1507447
Grant/Contract Number:  
AC02-05CH11231; EE0008079
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Energy Technology
Additional Journal Information:
Journal Volume: 7; Journal Issue: 5; Journal ID: ISSN 2194-4288
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; solid oxide electrolysis; solid oxide electrolyzer cells; high temperature electrolysis; hydrogen production; infiltration

Citation Formats

Wang, Ruofan, Dogdibegovic, Emir, Lau, Grace Y., and Tucker, Michael C. Metal-Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis. United States: N. p., 2019. Web. doi:10.1002/ente.201801154.
Wang, Ruofan, Dogdibegovic, Emir, Lau, Grace Y., & Tucker, Michael C. Metal-Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis. United States. https://doi.org/10.1002/ente.201801154
Wang, Ruofan, Dogdibegovic, Emir, Lau, Grace Y., and Tucker, Michael C. Fri . "Metal-Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis". United States. https://doi.org/10.1002/ente.201801154. https://www.osti.gov/servlets/purl/1515781.
@article{osti_1515781,
title = {Metal-Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis},
author = {Wang, Ruofan and Dogdibegovic, Emir and Lau, Grace Y. and Tucker, Michael C.},
abstractNote = {High-temperature electrolysis (HTE) using solid oxide electrolysis cells (SOECs) is a promising hydrogen production technology and has attracted substantial research attention over the last decade. While most studies are conducted on hydrogen electrode-supported type cells, SOEC operation using metal-supported cells has received minimal attention. The development of metal-supported SOECs with performance similar to the best conventional SOECs is reported. These cells have stainless steel supports on both sides, 10Sc1CeSZ electrolyte and electrode backbones, and nano-structured catalysts infiltrated on both hydrogen and oxygen electrode sides. Samarium-doped ceria (SDC) mixed with Ni is infiltrated as a hydrogen electrode catalyst, and the effect of ceria:Ni ratio is studied. On the oxygen electrode side, catalysts including lanthanum strontium manganite (LSM), lanthanum strontium cobalt ferrite (LSCF), praseodymium oxide (Pr6O11), and their composite catalysts with SDC (i.e., LSM-SDC, LSCF-SDC, and Pr6O11-SDC) are compared. Utilizing the materials with highest catalytic activity (Pr6O11-SDC and SDC40-Ni60) and optimizing the catalyst infiltration processes, excellent electrolysis performance of metal-supported cells is achieved. Current densities of –5.31, –4.09, –2.64, and –1.62 A cm–2 are accomplished at 1.3 V and 50 vol% steam content at 800, 750, 700, and 650 °C, respectively.},
doi = {10.1002/ente.201801154},
url = {https://www.osti.gov/biblio/1515781}, journal = {Energy Technology},
issn = {2194-4288},
number = 5,
volume = 7,
place = {United States},
year = {2019},
month = {3}
}

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