Electricity generated with H2O/salt/membrane

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Electricity generated with water, salt and a three-atoms-thick membrane

Proponents of clean energy will soon have a new source to add to their existing array of solar, wind, and hydropower: osmotic power. Or more specifically, energy generated by a natural phenomenon occurring when fresh water comes into contact with seawater through a membrane.

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The potential of the new system is huge. According to their calculations, a 1m² membrane with 30% of its surface covered by nanopores should be able to produce 1MW of electricity - or enough to power 50,000 standard energy-saving light bulbs. And since molybdenum disulfide (MoS₂) is easily found in nature or can be grown by chemical vapor deposition, the system could feasibly be ramped up for large-scale power generation. The major challenge in scaling-up this process is finding out how to make relatively uniform pores.

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Read more at Phys.org

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