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Updated: Apr 29, 2026

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells

Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells

Published on: September 20, 2012

Multilayer Nanoarchitectured Air Electrodes for High-Performance Solid Oxide Cells.

Katherine Develos-Bagarinao¹, Yuki Shirakura², Hiroyuki Tateno²

¹Global Zero Emission Research Center, National Institute of Industrial Science and Technology (AIST), AIST Tsukuba West, 16-1 Onogawa, Tsukuba 305-8569, Japan.

|April 28, 2026

Summary

Researchers developed a new nanoarchitectural strategy for solid oxide cells (SOCs) using multilayered nanoporous materials. This approach significantly enhances performance and stability in both solid oxide fuel cell (SOFC) and solid oxide electrolysis cell (SOEC) applications.

Keywords:

GDC LSC nanocomposites nanostructures solid oxide cells solid oxide electrolysis cells solid oxide fuel cells

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Published on: April 16, 2017

Area of Science:

Materials Science and Engineering
Electrochemistry
Energy Conversion and Storage

Background:

Solid oxide cells (SOCs) are key technologies for a hydrogen economy, enabling fuel cell and electrolysis applications.
Achieving high performance and long-term stability in SOCs is challenging despite material development efforts.
Air electrodes are critical components influencing SOC efficiency and durability.

Purpose of the Study:

To introduce a facile nanoarchitectural strategy for SOC air electrodes.
To investigate multilayered nanoporous La_0.6Sr_0.4CoO_3-δ and gadolinia-doped ceria (GDC) as alternative air electrodes.
To evaluate the performance and stability enhancement in SOCs.

Main Methods:

Fabrication of multilayered nanoporous air electrodes using room-temperature growth.
Integration of these nanostructured multilayers into Ni-YSZ electrode-supported SOCs.
Testing of cells in both solid oxide fuel cell (SOFC) and solid oxide electrolysis cell (SOEC) modes at 700 °C.

Main Results:

Significant reduction in electrode polarization resistance was achieved.
Optimized multilayer nanoarchitecture yielded current densities of ~2.3 A/cm² (SOFC) and ~1.7 A/cm² (SOEC).
Performance surpassed conventional electrodes by ~50% (SOFC) and ~40% (SOEC), with good stability up to ~160 hours.

Conclusions:

Nanoarchitectural structuring of air electrodes offers substantial benefits for SOCs.
The developed multilayered nanoporous strategy significantly enhances performance and long-term stability.
This approach holds great potential for advancing SOC technology towards a hydrogen-based economy.