Rust could help boost the efficiency of hydrogen production from sunlight - a potentially green source of energy.
Tiny (nano-sized) particles of haematite (crystalline iron oxide, or rust) have been shown to split water into hydrogen and oxygen in the presence of solar energy.
The result could bring the goal of generating cheap hydrogen from sunlight and water a step closer to reality.
See full Article: http://www.bbc.co.uk/news/science-environment-23226798
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