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Nanocrystalline α-MnO2 nanowires are prepared by electrodeposition of MnO2 at step edges on graphite electrodes. MnO2 wires have an adjustable diameter of 40−150 nm, were 10−500 μm in length, and were organized into parallel ensembles of hundreds of wires.
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Li et al. (2004) studied this question.
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