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Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

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Published on: May 26, 2019

Extremely thin bilayer electrolyte for solid oxide fuel cells (SOFCs) fabricated by chemical solution deposition

Eun-Ok Oh1, Chin-Myung Whang, Yu-Ri Lee

  • 1Department of Materials Science and Engineering, Inha University, 253 Youghyun, Incheon 402-751, South Korea.

Advanced Materials (Deerfield Beach, Fla.)
|June 1, 2012
PubMed
Summary

Researchers developed a thin electrolyte for solid oxide fuel cells (SOFCs) using yttria-stabilized zirconia (YSZ) and gadolinia-doped ceria (GDC). This innovation enhances performance at intermediate temperatures by minimizing processing flaws.

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High Temperature Fabrication of Nanostructured Yttria-Stabilized-Zirconia (YSZ) Scaffolds by In Situ Carbon Templating Xerogels

Published on: April 16, 2017

Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Conversion

Background:

  • Solid oxide fuel cells (SOFCs) require efficient electrolytes for intermediate-temperature operation.
  • Developing thin-film electrolytes is crucial for reducing material usage and improving performance.
  • Yttria-stabilized zirconia (YSZ) and gadolinia-doped ceria (GDC) are promising ceramic materials for SOFC electrolytes.

Purpose of the Study:

  • To fabricate an extremely thin bilayer electrolyte of YSZ and GDC.
  • To investigate methods for eliminating processing flaws in thin electrolytes.
  • To evaluate the performance of the fabricated electrolyte in an SOFC at intermediate temperatures.

Main Methods:

  • Fabrication of a YSZ/GDC bilayer electrolyte on a NiO-YSZ substrate.
  • Application of local constraints to YSZ nanoparticles during fabrication.
  • Characterization of electrolyte properties and SOFC performance (e.g., open circuit voltage).

Main Results:

  • Successful fabrication of an extremely thin YSZ/GDC bilayer electrolyte.
  • Effective elimination of major processing flaws through nanoparticle constraint.
  • Demonstration of excellent open circuit voltage and cell performance.

Conclusions:

  • The developed thin bilayer electrolyte is suitable for SOFCs operating at intermediate temperatures.
  • Local nanoparticle constraints are effective in preventing defects in thin electrolytes.
  • This approach offers a pathway to improved SOFC efficiency and durability.