Cathodic electrochemical deposition: a new strategy to enhance the activity and stability of silver cathodes for thin-film solid oxide fuel cells

2020 ◽  
Vol 8 (29) ◽  
pp. 14491-14497 ◽  
Author(s):  
Hyunseung Kim ◽  
Han Gil Seo ◽  
Yoonseok Choi ◽  
Dae-Kwang Lim ◽  
WooChul Jung
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Deposition ◽  
Peak Power ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
New Strategy ◽  
Silver Cathodes

Cathodic electrochemical deposition-treated silver cathodes for solid oxide fuel cell achieved 40% enhanced peak power density and 50 hour thermal stability.

Structural and Electrochemical Studies on Thin-Film Yttria-Doped Zirconia Electrolytes for Microscale Solid Oxide Fuel Cells

2008 ◽  
Author(s):  
Alex C. Johnson ◽  
Shriram Ramanathan
Keyword(s):  
Thin Film ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Platinum Electrodes ◽  
Electrochemical Studies ◽  
Oxide Fuel ◽  
Conductivity Measurements ◽  
Fuel Cell Performance ◽  
Pt Electrodes

We report in-plane and through-plane conductivity measurements of dense YSZ films varying in thickness from 20 to 200 nm. In-plane measurements were performed on YSZ films grown on silicon wafers coated with SiO2 or Si3N4. Micro-fabricated strips with Pt electrodes in various geometries were used to obtain conductivity as a function of temperature from 200 – 600 °C in a custom-designed micro-probe station. These films have activation energies, which vary from 0.77 to 1.09 eV. Their absolute conductivity is lower compared with other reports. Through-plane and fuel cell measurements were performed by depositing YSZ on a nitrided silicon wafer, then etching through the wafer and depositing porous platinum electrodes on both sides [6,7]. We discuss the electrochemical conduction studies in detail along with fuel cell performance and correlation with electrode microstructure.

Multiscale structured low-temperature solid oxide fuel cells with 13 W power at 500 °C

2020 ◽  
Vol 13 (10) ◽  
pp. 3459-3468 ◽  
Author(s):  
Sung Soo Shin ◽  
Jeong Hun Kim ◽  
Kyung Taek Bae ◽  
Kang-Taek Lee ◽  
Sang Moon Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Large Area ◽  
Deposition Processes

A multiscale architectured solid oxide fuel cell is demonstrated by applying a large-area ceramic micropatterning and thin-film deposition processes.

scholarly journals Thin Film Synthesis of Novel Electrode Materials for Solid-Oxide Fuel Cells

1997 ◽  
Vol 496 ◽  
Author(s):  
Alan F. Jankowski ◽  
Jeffrey D. Morse
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Electrode Materials ◽  
Sputter Deposition ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia

ABSTRACTElectrode materials for solid-oxide fuel cells are developed using sputter deposition. A thin film anode is formed by co-deposition of nickel and yttria-stabilized zirconia. This approach is suitable for composition grading and the provision of a mixed-conducting interfacial layer to the electrolyte layer. Similarly, synthesis of a thin film cathode proceeds by co-deposition of silver and yttria-stabilized zirconia. The sputter deposition of a thin film solid-oxide fuel cell is next demonstrated. The thin film fuel cell microstructure is examined using scanning electron microscopy whereas the cell perfomance is characterized through current-voltage measurement and corresponding impedance spectroscopy.

scholarly journals Robust nano-architectured composite thin films for a low-temperature solid oxide fuel cell cathode

2016 ◽  
Vol 4 (24) ◽  
pp. 9394-9402 ◽  
Author(s):  
Han Gil Seo ◽  
Yoonseok Choi ◽  
Bonjae Koo ◽  
Ahreum Jang ◽  
WooChul Jung
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Fuel Cell ◽  
Low Temperature ◽  
Electrochemical Deposition ◽  
Oxide Coating ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Pt Electrodes ◽  
Fuel Cell Cathode

Nano-precipitates of Sm-doped CeO2 were uniformly coated onto porous Pt thin films via cathodic electrochemical deposition. Deposition of only 5 min created an oxide coating that increased the values of the electrode conductance by more than two orders of magnitude and provided outstanding thermal stability even at 600 °C for more than 100 h compared to the bare Pt electrodes.

scholarly journals A circular membrane for nano thin film micro solid oxide fuel cells with enhanced mechanical stability

2015 ◽  
Vol 8 (11) ◽  
pp. 3374-3380 ◽  
Author(s):  
Jong Dae Baek ◽  
Yong-Jin Yoon ◽  
Wonyoung Lee ◽  
Pei-Chen Su
Keyword(s):  
Thin Film ◽  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Mechanical Stability ◽  
Solid Oxide ◽  
Circular Membrane ◽  
Oxide Fuel ◽  
Thin Film Electrolyte ◽  
Film Electrolyte

We demonstrate a new architecture for a low temperature solid oxide fuel cell to enlarge the lateral dimension of the fragile nano thin film electrolyte from the micrometer to millimeter scale with greatly enhanced mechanical stability.

scholarly journals Integrated Cr and S poisoning of a La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) cathode for solid oxide fuel cells

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 7-14
Author(s):  
Cheng Cheng Wang ◽  
Mortaza Gholizadeh ◽  
Bingxue Hou ◽  
Xincan Fan
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Cell Performance ◽  
Oxide Fuel ◽  
Performance Deterioration

Strontium segregation in a La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) electrode reacts with Cr and S in a solid oxide fuel cell (SOFC), which can cause cell performance deterioration.

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