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Graphene—How a Laboratory Curiosity Suddenly Became Extremely Interesting



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Thanks to its unusual electronic properties graphene has received considerable attention in recent years. It is less known, however, that research in this area goes much further back: At the start of the 1960s H.-P. Boehm et al. reduced graphite oxide with formation of thin films, which today, on account of their content of foreign atoms, would be called “chemically modified graphenes” (figure: electron microscopy image from that time).