Graphene generates electricity from saltwater – This is REAL Genius

Graphene generates electricity from saltwater – This is REAL Genius


Graphene is the wonder material that just
keeps on giving. Actually, it’s the reported wonder material that keeps on promising it
can give but so far has been a bit flakey, promising advances in electronics, fabrics,
construction materials, information systems and countless other fields, but singularly
failling to deliver commercially viable products. Graphene is great. In fact it’s better than
the inherently imperfect technology currently used to produce it, which makes it, for now,
a bit useless. And now there’s yet another incredibly useful
thing that graphene has found to be capable of – it can generate electricity from saltwater. A team of researchers from China found that,
by placing a droplet of saltwater on a graphene film and then dragging it along, they could
generate a small voltage difference. More drops moved faster generated a linear increase
in the amount of voltage producecd. So what’s caused it? Well the team foudn that
when the drop was still, the charge distribution between the graphene on either side of the
drop was equal. When it moved, it created a charge difference – the electrons desorbing
from one side of the strip and absorbed into the graphene at the other. This means that with a regular flow of salt
water over the strip, a constant, potentially useful charge can be created. The amounts
are pretty small – in the test, one droplet created about 30 millivolts. But it can be
scaled up, with some serious advantages. Most hydroelectric and tidal power systems are
monumental engineering feats, requiring millions of tonnes of concrete and large scale destruction
of ecosystems and shorelines. Nano materials such as graphene require much
less engineering and infrastructure, and therefore damage. And because graphene can be created
from more or less anything carbon based, from wood to dog poo, it would be relatively cost
effective too. But like all other graphene related advances,
manufacturing is the major stumbling block. We simply can’t make enough graphene in large,
continuous quantities to be industrially viable. Yet.

23 thoughts on “Graphene generates electricity from saltwater – This is REAL Genius

  1. Dang It You Tube! It Must Have Caught The Man Flu Sam! I Have To Refresh The Page To Click Like, And To Post, And I do So Love To Post! I Guess It's A Small Price To Pay. Now If I Could Just Learn How To type.

  2. woah? 1 droplet = 30 milivolts? And it's a linear increase? Well…Damn. So, 30 volts for every liter of water that passes over it? Know what? I'd say this could be really quite useful, especially with a reliable source of moving water…like the sea.

  3. Send one of the jedward twins up in space, if one comes back and slaps the other sensible then we know space can have an effect on personalities.

  4. Send one of the jedward twins up in space, if one comes back and slaps the other sensible then we know space can have an effect on personalities.

  5. Wow Graphene can generate electricity from saltwater, surely that is a breakthrough in many civilian and military fields,with this type of material can be built unmanned underwater vehicles which would run indefinitely. Very Interesting! 😀

  6. Los irlandeses dicen haber hecho un importante avanse que llevaria al grafeno a poder fabricarse en cantidades industriales!  

  7. Though we've had devices powered by salt water for a while now. Nonetheless this is just one more potential application that could, potentially, have drastic results of a positive sort.

  8. Robert Murray-Smith is experimenting with this technique right now on his YouTube channel using his graphene inks and is having good early results.

  9. If anyone wants to play with our Nano Inks & paints, I am selling Robert Murray's Smiths, FWG inks. Our stuff out performs the competitors and is a fraction of the price.  Robert's works is mostly open source unlike the "big high tec I'm going to make you pay suckers" world, the results of our little group is absolutely amazing. you can follow us on you tube.  Contact me to buy the inks & paints.  
    Peace out, Murf! 

  10. So as far as i know our current producation method envolves van der walls force. could we not scale that up in some sort of automated large scale deconstruction of a graphite plate. Picture this, 1 sheet of graphite repeatable being striped by a serieries of equaly sized plates which strip successive layers in a production line, (thin multiple ferris wheels whith plates instead of cars(and more of them) whith the outermost gears/wheels moving/stripping at faster speeds. am i crazy or can't we do this already and just need capital?

  11. Hi thanks for this info 🙂 Just a thought' if you can make Graphene from dog poo then why not from human waste too?

  12. It takes years for any technology to go from research to commercial availability and ways of producing graphene on a commercial scale has only just been discovered, so… it'll be quite a few years before large scale commercial applications materialise.

  13. grow it in a magnetic or sonic field that reinforces the structure at a strip along a conveyor belt linked together as calls.

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