Synthesis of Paramelaconite: Cu4O3

Epitaxial growth of copper oxide films by reactive cross-beam pulsed-laser deposition

“…It is worth noticing that it could be expected to grow the metastable copper oxide Cu 3 O 2 [16] and Cu 4 O 3 [17] phases, which present copper ions in the two valence states Cu I and Cu II . Nevertheless, we never obtain such compounds though PLD is well suited to prepare thermodynamically unstable or metastable materials.…”

Formation of Au Particles in Cu2?xICu2IIO3?δ (x ≈ 0.20; δ ≈ 0.10) Oxide Matrix by Sol-Gel Growth

“…Rest of the peaks of the diffraction patterns of the samples S1-S3 are found to be akin to tetragonal dicopper(I) dicopper(II) oxide, Cu 2 I Cu 2 II O 3 , phase in the samples. 11 The lattice parameters determined from the diffraction peaks are shown in Table 1.…”

Growth and microstructural study of CuO covered ZnO nanorods

“…Paramelaconite (Cu 4 O 3 ) is one of the three Cu-O minerals (tenorite, CuO and cuprite, Cu 2 O the others); it is a mixed oxide structure where Cu atoms are present in valences Cu 1þ and Cu 2 þ as the form of Cu 2 O Á 2CuO. Thermodynamic data, semiconducting properties and formation mechanism of paramelaconite are not well understood [28][29][30], although some optical properties have been reported [31]. In addition, Fig.…”