Nature Chemistry | The Sceptical Chymist

MRS: Put some chicken feathers in your engine

That is what Richard Wool suggested as apparently, when treated thermally near their melting temperature, the cheratin in the feathers develops tunnels around 7 Angstroms in size, which are very good for hydrogen storage. The material is not very efficient, but at least it is extremely low cost (3000kg waste feathers a year are produced in the US alone). 

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