Researchers produce 50x more stable adsorbent

phys.org | 4/17/2018 | Staff
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A KAIST research team have developed a technology to increase the stability of amine-containing adsorbents by 50 times, moving another step toward commercializing stable adsorbents that last longer.

Professor Minkee Choi from the Department of Chemical and Biomolecular Engineering and his team succeeded in developing amine-containing adsorbents that show high oxidative stability.

Capture - Greenhouse - Gas - Carbon - Dioxide

The capture of the greenhouse gas carbon dioxide is an active ongoing research field, and some of the latest advancements point to amine-containing adsorbents as an efficient and environmentally friendly way to capture carbon dioxide. However, existing amine-containing adsorbents are known to be unstable under oxidation, which chemically breaks down the adsorbent, thereby making it difficult to rely on amine-containing adsorbents for repeated and continued use.

The researchers have discovered that the miniscule amount of iron and copper present in the amine accelerate the oxidative breakdown of the amine-containing adsorbent. Upon this discovery, they proposed the use of a chelator substance,...
(Excerpt) Read more at: phys.org
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