Nature Communications 4: Article number: 1539 (2013); Published: 26 February 2013; Updated: 8 July 2013.

This Article contains errors in Fig. 3. The Raman spectra that were included in Fig. 3d while the manuscript was under consideration by the journal were inadvertently replaced with Fourier transform infrared (FTIR) spectra during the final revision. The correct version of Fig. 3 appears below.

Figure 3: Experimental procedures of the reduction of GO in Na-NH3 system.
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