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Title: 3D Self-Architectured Steam Electrode Enabled Efficient and Durable Hydrogen Production in a Proton-Conducting Solid Oxide Electrolysis Cell at Temperatures Lower Than 600 °C

Abstract

Hydrogen production via water electrolysis using solid oxide electrolysis cells (SOECs) has attracted considerable attention because of its favorable thermodynamics and kinetics. It is considered as the most efficient and low-cost option for hydrogen production from renewable energies. By using proton-conducting electrolyte (H-SOECs), the operating temperature can be reduced from beyond 800 to 600 °C or even lower due to its higher conductivity and lower activation energy. Technical barriers associated with the conventional oxygen-ion conducting SOECs (O-SOECs), that is, hydrogen separation and electrode instability that is primarily due to the Ni oxidation at high steam concentration and delamination associated with oxygen evolution, can be remarkably mitigated. Here, a self-architectured ultraporous (SAUP) 3D steam electrode is developed for efficient H-SOECs below 600 °C. At 600 °C, the electrolysis current density reaches 2.02 A cm–2 at 1.6 V. Instead of fast degradation in most O-SOECs, performance enhancement is observed during electrolysis at an applied voltage of 1.6 V at 500 °C for over 75 h, attributed to the “bridging” effect originating from reorganization of the steam electrode. The H-SOEC with SAUP steam electrode demonstrates excellent performance, promising a new prospective for next-generation steam electrolysis at reduced temperatures.

Authors:
 [1];  [1];  [1];  [2];  [3];  [3];  [1]; ORCiD logo [1]
  1. Energy and Environmental Science and Technology, Idaho National Laboratory, Idaho Falls ID 83415 USA
  2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332 USA
  3. Department of Mechanical Engineering, University of South Carolina, Columbia SC 29208 USA
Publication Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office; USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1468354
Alternate Identifier(s):
OSTI ID: 1468355; OSTI ID: 1623468
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Published Article
Journal Name:
Advanced Science
Additional Journal Information:
Journal Name: Advanced Science Journal Volume: 5 Journal Issue: 11; Journal ID: ISSN 2198-3844
Publisher:
Wiley
Country of Publication:
Germany
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry; Science & Technology - Other Topics; Materials Science; 3D Electrodes; Interfaces; Proton-conducting Oxide; Solid Oxide Electrolysis Cells; Water Splitting

Citation Formats

Wu, Wei, Ding, Hanping, Zhang, Yunya, Ding, Yong, Katiyar, Prashant, Majumdar, Prasun K., He, Ting, and Ding, Dong. 3D Self-Architectured Steam Electrode Enabled Efficient and Durable Hydrogen Production in a Proton-Conducting Solid Oxide Electrolysis Cell at Temperatures Lower Than 600 °C. Germany: N. p., 2018. Web. doi:10.1002/advs.201800360.
Wu, Wei, Ding, Hanping, Zhang, Yunya, Ding, Yong, Katiyar, Prashant, Majumdar, Prasun K., He, Ting, & Ding, Dong. 3D Self-Architectured Steam Electrode Enabled Efficient and Durable Hydrogen Production in a Proton-Conducting Solid Oxide Electrolysis Cell at Temperatures Lower Than 600 °C. Germany. https://doi.org/10.1002/advs.201800360
Wu, Wei, Ding, Hanping, Zhang, Yunya, Ding, Yong, Katiyar, Prashant, Majumdar, Prasun K., He, Ting, and Ding, Dong. Fri . "3D Self-Architectured Steam Electrode Enabled Efficient and Durable Hydrogen Production in a Proton-Conducting Solid Oxide Electrolysis Cell at Temperatures Lower Than 600 °C". Germany. https://doi.org/10.1002/advs.201800360.
@article{osti_1468354,
title = {3D Self-Architectured Steam Electrode Enabled Efficient and Durable Hydrogen Production in a Proton-Conducting Solid Oxide Electrolysis Cell at Temperatures Lower Than 600 °C},
author = {Wu, Wei and Ding, Hanping and Zhang, Yunya and Ding, Yong and Katiyar, Prashant and Majumdar, Prasun K. and He, Ting and Ding, Dong},
abstractNote = {Hydrogen production via water electrolysis using solid oxide electrolysis cells (SOECs) has attracted considerable attention because of its favorable thermodynamics and kinetics. It is considered as the most efficient and low-cost option for hydrogen production from renewable energies. By using proton-conducting electrolyte (H-SOECs), the operating temperature can be reduced from beyond 800 to 600 °C or even lower due to its higher conductivity and lower activation energy. Technical barriers associated with the conventional oxygen-ion conducting SOECs (O-SOECs), that is, hydrogen separation and electrode instability that is primarily due to the Ni oxidation at high steam concentration and delamination associated with oxygen evolution, can be remarkably mitigated. Here, a self-architectured ultraporous (SAUP) 3D steam electrode is developed for efficient H-SOECs below 600 °C. At 600 °C, the electrolysis current density reaches 2.02 A cm–2 at 1.6 V. Instead of fast degradation in most O-SOECs, performance enhancement is observed during electrolysis at an applied voltage of 1.6 V at 500 °C for over 75 h, attributed to the “bridging” effect originating from reorganization of the steam electrode. The H-SOEC with SAUP steam electrode demonstrates excellent performance, promising a new prospective for next-generation steam electrolysis at reduced temperatures.},
doi = {10.1002/advs.201800360},
journal = {Advanced Science},
number = 11,
volume = 5,
place = {Germany},
year = {Fri Aug 31 00:00:00 EDT 2018},
month = {Fri Aug 31 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/advs.201800360

Citation Metrics:
Cited by: 74 works
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Figures / Tables:

Figure 1 Figure 1: 3D PBSCF anode framework: a) SEM image of a sintered 3D PBSCF framework surface; b) a closer view of the wall of fibers, showing uniformly distributed open pores; c) cross-sectional image of hollow fibers; d) HAADF STEM image of a piece from fiber wall; e) EELS mapping frommore » the red square area marked in (c).« less

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.