Squeezing out the energy: Macroscopically reversible deformation of polymers in contact with water produces H2O2 in quantities that are sufficient to drive small-scale chemical syntheses. The amount of mechanosynthesized H2O2 scales with the polymer–water interfacial area, and the efficiency of the mechanical-to-chemical energy transduction can be as high as 30 % for soft, porous polymer “sponges”.
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