High-performance self-assembled catalyst for SOFC

phys.org | 10/12/2018 | Staff
nallynally (Posted by) Level 4
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A recent study affiliated with UNIST has introduced a novel catalyst that can significantly enhance the performance of perovskite electrodes in Solid Oxide Fuel Cell (SOFC).

This breakthrough was led by Professor Gunatae Kim in the School of Energy and Chemical Engineering at UNIST in collaboration with Professor Jeeyoung Shin of Sukmyeong Women's University, Jeong Woo Hn of Seoul University, and Professor Hu Young Jeong of UCRF at UNIST. The new catalyst forms an alloy in which the internal material of the fuel cell rises to the surface during the operation of the fuel cell. Because of this, it does not break even if you use the hydrocarbon directly, and maintains the performance.

Study - Phenomenon - Materials - Reaction - Efficiency

This study was the first to report a phenomenon in which catalytic materials make alloys themselves to improve reaction efficiency. The findings are published in the September 2018 issue of the Journal of Materials Chemistry A, and has been selected as one of the 2018 Journal of Materials Chemistry A Hot Papers.

Solid oxide fuel cells (SOFCs) have the potential to become the next major breakthrough as an alternative energy conversion device. One great appeal of SOFCs is that they promise more efficient use of abundant, inexpensive natural gas, creating fewer overall carbon dioxide emissions than traditional combustion turbines. They use the simple reaction of combining hydrogen and oxygen to produce electricity and water as a by-product.

Challenges - Hydrogen - Fuel - Cells - Storage

One of the major challenges to developing affordable hydrogen fuel cells has been storage. This is because hydrogen is explosive and requires costly containers to hold it safely. As a result, there has been a great increase in the development of SOFCs using hydrocarbons such as shale gas, natural gas, methane, propane and butane gas.

However, if...
(Excerpt) Read more at: phys.org
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