Tunable Cu₂O Nanocrystals Fabricated by Free Dealloying of Amorphous Ribbons

Figure 3

Cu₂O crystals with various morphologies: (a–d) SEM images. (a) Cube, dealloyed in 0.5 M HF for 4 min, (b) cuboctahedron, dealloyed in 0.05 M HCl for 6 h, (c) truncated octahedron, dealloyed in 0.05 M HCl for 8 h, (d) octahedron, dealloyed in 0.05 M HCl for 14 h. (e–h) are their corresponding three-dimensional models.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)