Copper's oxygen-rich early oxidation layer could inform catalyst design and nuclear waste storage

Copper roofs lose their reddish color over time because a pale green layer of copper oxide forms on their surface, protecting the roof from further corrosion for many years. But what exactly happens during the first steps of this process? Might it even be possible to stop it? This question has become increasingly urgent since copper containers have come to be regarded as one of the best options for storing nuclear waste.

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