496947 Electrical Energy Generation Via Reversible Chemical Doping on Carbon Nanotube Fibers

Albert Tianxiang Liu, Yuichiro Kunai, Pingwei Liu, Anton Cottrill and Michael Strano, Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA

Chemically modified carbon nanotube fibers enable unique power sources driven entirely by a chemical potential gradient. Electrical current (11.9 μA mg−1) and potential (525 mV) are reversibly produced by localized acetonitrile doping under ambient conditions. An inverse length-scaling of the maximum power as L−1.03 that creates specific powers as large as 30.0 kW kg−1 highlights the potential for microscale energy generation.

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