MIT scientists : Ice-filled Wires could charge Electrical Devices

MIT scientists  has found a completely unexpected set of changes: Inside the tiniest of spaces — in carbon nanotubes whose inner dimensions are not much bigger than a few water molecules — water can freeze solid even at high temperatures that would normally set it boiling.

Scientists are change  boiling and freezing points  usually dropping by abound 10 degrees Celsius.MIT scientists including Kumar Varoon Agrawal from Massachusetts Institute of Technology in the US, have found that water can freeze even at high temperatures that would normally set it boiling in carbon nanotubes water starts to boil at a temperature of 100 degrees Celsius.

Professor at MIT, Michael Strano said,”If you confine a fluid to a nanocavity, you can actually distort its phase behavior,”.

The researchers said “there were some simulations that showed really contradictory results,” Even the difference between nanotubes 1.05 nanometres and 1.06 nanometres across made a difference of tens of degrees in the apparent freezing point, such extreme differences were completely unexpected.

Carbon nanotubes are thought to be hydrophobic, or water-repelling, so water molecules should have a hard time getting inside. The fact that they do gain entry remains a bit of a mystery.The behavior of the water changes when it is inside the tiny carbon nanotubes – structures the shape of a soda straw, made entirely of carbon atoms but only a few nanometres in diameter – depends crucially on the exact diameter of the tubes.


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