Figure 1.

XRD patterns of samples calcined at 200°C for 3 h prepared under different reaction conditions. (a) 150°C for 20 h, (b) 180°C for 12 h, (c) 200°C for 6 h, (d) 200°C for 10 h, (e) 200°C for 12 h, and (f) 250°C for 6 h.

Shin et al. Nanoscale Research Letters 2012 7:73   doi:10.1186/1556-276X-7-73
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