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In this work, we report the preparation of MnO2 nanoworms through a facile and low-cost electrochemical followed by heat-treatment approach without using any template or surfactant. The deposition experiments were conducted at a pulse current mode with typical on-time and off-time (ton= 5s and toff=10s) and an average current density of 2mAcm−2 (Ia=2mAcm−2). The obtained hydroxide deposit was heat...
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