Sample

2θ˚

Peak FWHM

Crystallite (Å)

Surface Area (m²/g)

nanocloud Co₃O₄

36.8

0.502

163

78.6933

nanosphere Co₃O₄

36.8

0.502

170

66.0308

nanobook Co₃O₄

36.8

0.415

208

35.0288

nanoflower Co₃O₄

36.8

0.467

184

39.9504

nanorods Co₃O₄

36.8

0.271

333

22.3442