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Title: Solid Oxide Electrolysis for Hydrogen Production: From Oxygen Ion to Proton Conducting Cells

Abstract

Electrochemical splitting of water, using solid oxide electrolysis cells (SOEC), offers an economic and efficient pathway for large scale hydrogen production that not only utilizes renewable energy but also allows both distributed and centralized hydrogen production to accelerate and enable hydrogen infrastructure for mobility. In this technical contribution, two types of electrochemical systems using conventional oxygen ion conducting (O-SOEC) and newly developed proton conducting (P-SEOC) has been compared in terms of hydrogen purity, electrochemical performance, and stability (structural and electrochemical). The observations on dopant exsolution, solid-solid (electrode/electrolyte interface) and solid-gas (electrode-H2O, O2,and H2) interactions have been presented. The composition, structure, and morphology changes and their roles on electrochemical performance and electrode stability in oxidizing (O2) and reducing (H2) atmospheres has been discussed.

Authors:
ORCiD logo; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1492693
Report Number(s):
PNNL-SA-140066
Journal ID: ISSN 1938-6737
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
ECS Transactions (Online)
Additional Journal Information:
Journal Volume: 85; Journal Issue: 10; Journal ID: ISSN 1938-6737
Publisher:
Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
SOEC, solid oxide electrolysis, proton conductor, Hydrogen Production

Citation Formats

Hu, Boxun, Aphale, Ashish N., Reisert, Michael, Belko, Seraphim, Marina, Olga A., Stevenson, Jeffry W., and Singh, Prabhakar. Solid Oxide Electrolysis for Hydrogen Production: From Oxygen Ion to Proton Conducting Cells. United States: N. p., 2018. Web. doi:10.1149/08510.0013ecst.
Hu, Boxun, Aphale, Ashish N., Reisert, Michael, Belko, Seraphim, Marina, Olga A., Stevenson, Jeffry W., & Singh, Prabhakar. Solid Oxide Electrolysis for Hydrogen Production: From Oxygen Ion to Proton Conducting Cells. United States. doi:10.1149/08510.0013ecst.
Hu, Boxun, Aphale, Ashish N., Reisert, Michael, Belko, Seraphim, Marina, Olga A., Stevenson, Jeffry W., and Singh, Prabhakar. Tue . "Solid Oxide Electrolysis for Hydrogen Production: From Oxygen Ion to Proton Conducting Cells". United States. doi:10.1149/08510.0013ecst.
@article{osti_1492693,
title = {Solid Oxide Electrolysis for Hydrogen Production: From Oxygen Ion to Proton Conducting Cells},
author = {Hu, Boxun and Aphale, Ashish N. and Reisert, Michael and Belko, Seraphim and Marina, Olga A. and Stevenson, Jeffry W. and Singh, Prabhakar},
abstractNote = {Electrochemical splitting of water, using solid oxide electrolysis cells (SOEC), offers an economic and efficient pathway for large scale hydrogen production that not only utilizes renewable energy but also allows both distributed and centralized hydrogen production to accelerate and enable hydrogen infrastructure for mobility. In this technical contribution, two types of electrochemical systems using conventional oxygen ion conducting (O-SOEC) and newly developed proton conducting (P-SEOC) has been compared in terms of hydrogen purity, electrochemical performance, and stability (structural and electrochemical). The observations on dopant exsolution, solid-solid (electrode/electrolyte interface) and solid-gas (electrode-H2O, O2,and H2) interactions have been presented. The composition, structure, and morphology changes and their roles on electrochemical performance and electrode stability in oxidizing (O2) and reducing (H2) atmospheres has been discussed.},
doi = {10.1149/08510.0013ecst},
journal = {ECS Transactions (Online)},
issn = {1938-6737},
number = 10,
volume = 85,
place = {United States},
year = {2018},
month = {4}
}