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Manganese dioxide was synthesized by electrodeposition method with Mn (CH3COO)2 · 4H2O as a raw material. La(NO3)3 · 6H2O was doped in electroyte during the preparing process to improve the performance of MnO2 electrodes. The micrographs, crystal structure and element content of electrodes were analyzed by SEM, XRD and atomic absorption spectroscopy, respectively. It is found that the La content ratio...
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