Figure 2.

XRD patterns. XRD pattern of the (a) hollow spherical Cu2O (SI1-A1 in Additional file 1), (b) octahedral Cu2O (SI1-A2 in Additional file 1), and (c) JCPDS cards of Cu2O (PDF file No.05-0667).

Feng et al. Nanoscale Research Letters 2012 7:276   doi:10.1186/1556-276X-7-276
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