Figure 2.

XRD patterns of samples prepared at 200°C for 10 h under different calcination temperatures. (a) 200°C for 3 h, (b) 300°C for 3 h, and (c) 400°C for 3 h.

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