Freeze-dried foam soaks up carbon dioxide

ENN
Aug 16, 2017, 5:55 pm33 pts
Rice University materials scientists have created a light foam from two-dimensional sheets of hexagonal-boron nitride (h-BN) that absorbs carbon dioxide.They discovered freeze-drying h-BN turned it into a macro-scale foam that disintegrates in liquids. But adding a bit of polyvinyl alcohol (PVA) into the mix…

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