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Geochemists at Pacific Northwest National Laboratory used computational chemistry methods to obtain a molecular level understanding of sulfate formation (hannebachite) in carbonate minerals. The study highlights the potential of carbonate formations as natural sinks of S-containing compounds under co-sequestration conditions. The scanning electron microscope (SEM) microphotograph shows reacted dolomite (green) after being exposed to supercritical CO2 containing small amounts of CO2, forming Hannebachite crystals (magenta). This work indicates the potential of carbonate minerals for in situ CO2-scrubbing possibly bypassing the large expense associated with power-plant retrofitting and surface-based gas clean-up.

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Document Title: SEM images of Ir/Ni nanoparticles on Mg-Aluminum spinel, where the pink color indicates Ni-rich particles.
Category: Science as Art
Media Type: Photos
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