Why YSZ is used in SOFC?
Introduction. Nickel-YSZ is the commonly used anode material in solid oxide fuel cells (SOFCs) due to its high performance at intermediate temperatures. The fuel cell anode needs to have a suitable microstructure resulting in high electronic conductivity as well as low activation and concentration polarizations.
What is the catalyst used for SOFC?
The nickel-zirconia cermet has been widely used as a conventional SOFC anode material for decades.
What is the best fuel cell technology?
Alkaline Fuel Cells Operating at 60-70ºC (140-158ºF), AFCs are among the most efficient type of fuel cells, reaching up to 60% efficiency and up to 87% combined heat and power. Both the US and Russian/Soviet spaceships used alkaline fuel cells to produce electricity and drinking water for astronauts.
What does YSZ stand for?
Yttria-stabilized zirconia (YSZ) is a ceramic in which the cubic crystal structure of zirconium dioxide is made stable at room temperature by an addition of yttrium oxide. These oxides are commonly called “zirconia” (ZrO2) and “yttria” (Y2O3), hence the name.
What metals are used in fuel cells?
A commonly investigated fuel cell, the Polymer Electrolyte Fuel Cell (PEMFC), usually uses platinum and other platinum group metal nanomaterials to catalyze the rate limiting Oxygen Reduction Reaction (ORR) of this process.
Why is zirconia stabilized?
What does YZ mean in texting?
| YZ | Yemen Regional » Countries | Rate it: |
|---|---|---|
| YZ | Yed Zhava Miscellaneous » Unclassified | Rate it: |
| YZ | Yangzhou and ZJ Miscellaneous » Unclassified | Rate it: |
| YZ | Year Zero Miscellaneous » Unclassified | Rate it: |
| YZ | Yates Zane Miscellaneous » Unclassified | Rate it: |
What are the advantages of metal-supported SOFCs?
The metal-supported SOFCs thus can provide a reduced system cost, ease of manufacturing, and operational advantages. Owing to these features, metal-supported SOFCs are a very promising candidate for commercialization.
Can Gen 3 metal-supported SOFCs outperform anode-supported SOFC?
The obtained Gen 3 metal-supported SOFC outperformed even state-of-the-art anode-supported SOFCs, thus setting a new benchmark for SOFC development and demonstrating how an in-depth understanding of fundamental materials properties and their electrochemical interplay provides the basis for a knowledge-based optimization of SOFCs.
What are the challenges of metal-supported SOFCs in the automotive industry?
In particular, volumetric as well as gravimetric power density, along with prolonged lifetime, remain the major challenges on the way to commercialization of metal-supported SOFCs in the automotive industry. 2,4,16 To overcome these challenges within a reasonable time frame, a target-oriented development of metal-supported SOFCs is required.
Is there a metal supported SOFC in KAIST?
Furthermore, a novel fabrication method developed in KAIST is discussed. Present and new conceptual (metal supported) SOFC repeat unit. … Ceres Power Ltd. fabrication process for metal supported cell.