Review Thermal—magnetic investigation of the decomposition of copper oxalate—a precursor for catalysts

The crystal structure of paramagnetic copper(ii) oxalate (CuC2O4): formation and thermal decomposition of randomly stacked anisotropic nano-sized crystallites

“…The ticks below the diffraction pattern mark the possible Bragg angle positions for the space group P12 1 /n1. The above results are in contrast to the reported differential thermal analysis (DTA) and thermogravimetric analysis (TG) measurements, 17 where the data were interpreted as reduction of CuC 2 O 4 ·0.5H 2 O to Cu metal and Cu 2 O somewhere between 185 and 300°C , which was followed by oxidation so that Cu 2 O and CuO were present in the temperature range 300°C to 345°C, and finally only CuO was present at temperatures above 345°C. 17 The formation of metallic Cu in the first reaction is rather speculative.…”

Ionic liquid-assisted synthesis of transition metal oxalates via one-step solid-state reaction

“…1d), and CuC 2 O 4 ·2H 2 O (Fig. 1e) were obtained [11,14,[24][25][26]. No characteristic peaks of impurity phases ([BMIM]Cl) are present, indicating the high purity of the products.…”

Oxalate Biominerals

“…Besides, the sparingly soluble oxalates are increasingly used as precursors in solid-state reactions for the synthesis of mixed oxides, nanomaterials, and high T c superconducting ceramics [19][20][21].…”

“…Synthetic copper(II) oxalate is obtained with the composition CuC 2 O 4 ·nH 2 O 0 < n ≤ 1 and the water is of zeolitic nature [21]. So far all attempts to grow single crystals that might be adequate for structural studies have not been successful.…”