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Title: Magnesium
Description: Particles of pure magnesium (left) can only collect a limited amount of hydrogen on their outer surfaces, and the process is slow. But when the magnesium is doped with iron (right), far more hydrogen is delivered through the iron layers, which also results in much faster charging.

*MML

See also http://www.nist.gov/mml/metallurgy/hydrogen-083011.cfm.
Subjects (names):
Topics/Categories: Materials--Metallurgy
Type: Graphic/illustration
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: NIST
AV Number: 11MML027
Date Created: 2011
Date Entered: 8/30/2011

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