Simple Coating Promotes Carbon Capture

Scientists say "it's all about surface area," when it comes to their new baking soda-based carbon capture breakthrough. The team developed a new type of carbon capture media composed of core-shell microcapsules. The microcapsules consist of a highly permeable polymer shell and a fluid made up of a sodium carbonate solution that reacts with and absorbs CO₂. The polymer holds the sodium carbonate droplets in place, forcing them to take the shape of tiny droplets that have a large surface area compared to their weight. This allows the droplets to react quickly with the CO₂ gas passing through the polymer shell, effectively trapping it in the capsule.

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