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. 2015 Oct 23;5:15664. doi: 10.1038/srep15664

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The diffraction peaks at 40.1°, 46.6°, 68.0°, 82.1° and 86.4° correspond to Pd (111), Pd (200), Pd (220), Pd (311) and Pd (222), respectively. The diffraction peak at 25.1° is ascribed to the 0.335 nm interlayer distance of graphite sheet in the rGO.