Hydrogen fuel cells could someday meet a host of industrial energy needs, but it’s difficult and dirty to produce hydrogen using current methods. A new type of microbial fuel cell can power itself and produce a renewable supply of hydrogen, according to researchers at Penn State University. The system uses some seawater, some freshwater and bacteria.
Hydrogen fuel cells offer plenty of promise as an alternative fuel source for everything from cars to generators — but they remain expensive, complicated and mostly rare. It turns out that a deep sea ecosystem already uses such portable fuel cells, in a manner of speaking.
A small hydrogen fuel cell that can charge your gadgets on the go
By Sarah ParsonsPosted 05.20.2011 at 1:03 pm 18 Comments
As humanity goes wireless, the last pesky tether we and our gadgets have to escape is the power cable. Portable, battery-powered chargers tend to be both inefficient--so low-powered they struggle to recharge modern smartphones--and environmentally unfriendly. There have been off-the-grid chargers that rely on renewable energy before, valiantly attempting to rectify those problems, but most are ineffective without a steady source of wind, solar power, or abhorrent manual labor like cranking, yanking, or shaking (ech).
Enter the next generation of outlet-free power: Micro hyrdrogen fuel cells like Horizon's MiniPak. The MiniPak claims to bring the ten times the power of traditional batteries while releasing waste in the form of harmless water vapor. But is it practical?
By Sarah ParsonsPosted 05.13.2011 at 11:44 am 0 Comments
Hydrogen fuel cells have exploded onto the market as convenient chargers for your handheld devices. Plugged in via USB ports, the cells don't have to rely on wind or sun to stave off irritating "battery low!" messages.
London’s iconic black cabs are getting a green upgrade in time for the 2012 Olympic Games, and the first street legal iteration just took to the streets. Developed by Intelligent Energy, this is London’s first cab powered jointly by a hydrogen fuel cell and lithium polymer battery packs.
An interesting report from CNN over the weekend: a tabletop hydrogen fuel cell recharging station could bring hydrogen power to the individual home, allowing portable devices and eventually automobiles to charge up on the universe's most abundant element cleanly from the comfort of home.
The Antares DLR-H2 has just completed its first test flight, making it the world's first zero-emissions aircraft to successfully fly on hydrogen fuel cell power alone.
And because hydrogen fuel cells only react with oxygen in ambient air, the lone byproduct is water, which has no ill effect on the environment.
To create a truly clean alternative fuel, scientists are looking towards creating an artificial version of photosynthesis
By Matt RansfordPosted 03.28.2008 at 11:16 am 3 Comments
One of the technologies being touted as the next great thing for our cars is the hydrogen fuel cell. If youve heard anything about them, its that there are no harmful emissions, the only by-product is pure water, straight from your tailpipe. Of course, thats only part of the story. While it is true that your exhaust will be clean, thats only because hydrogen in a cell is not a source of energy the way gasoline naturally is—its a carrier, like a battery. The energy to be stored in the cell has to come from somewhere else. Right now, the sources are the same as theyve always been, relying heavily on fossil fuels. The emissions are simply moved from your exhaust to a power plant.
But what if the hydrogen could be produced with alternative energy sources?
Vegas, baby! Monday's a big day at CES, with tons of press embargoes being lifted. Here's a round-up of some of the more intriguing goods that have been worming their way into our inboxes over the past few months.
We're digging the innovative designs from the big players (check iRiver's newest media player, above). But even kids' stuff is catching our eyes this January. View the full gallery after the jump. —Abby Seiff