Tunable Cu₂O Nanocrystals Fabricated by Free Dealloying of Amorphous Ribbons

Table 1

Characteristics of Cu₂O crystals produced by free dealloying.

Corrosion media	Dealloying time	Morphology	Edge length	Area percentage (%)
HF	4 min	Cube	~90 nm	26.5
HCl	6 h	Cuboctahedron	~300 nm	12.2
	8 h	Truncated octahedron	~150 nm	13.9
	14 h	Octahedron	~1.2 μm	15.8
	20 h	Hexapods	~500 nm	14.4
	24 h	Dendrite	~1.4 μm (dendrite length)	14.3	Total 19.8
		Octahedron-detached hexapods	~1.1 μm	5.5