From Nanowerk News:
Catalysts are at the heart of fuel cells-devices that convert hydrogen and oxygen to water and enough electricity to power vehicles for hundreds of miles. But finding effective, inexpensive catalysts has been a key challenge to getting more of these hydrogen-powered, emission-free vehicles out on the road.
To help tackle this challenge, scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory used a high-resolution electron microscope to study nanoscale details of catalytic particles made of nickel and cobalt-inexpensive alternatives to the costly platinum used in most fuel cells today.
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