Synthesis of calcium titanate from [Ca(H2O)3]2[Ti2(O2)2O(NC6H6O6)2]·2H2O as a cheap single-source precursor

1D Heterometallic Oxalate Compounds as Precursors for Mixed Ca–Cr Oxides – Synthesis, Structures, and Magnetic Studies

“…As mentioned above, the sample prepared by heating 1 at 900°C in a nitrogen flow corresponds to a mixture of CaCrO 4 (Figure 11, a). The external bands associated with Ca motion are located in the far-infrared region.…”

“…[1,2] Recently, such systems have been exploited as molecular precursors for the preparation of mixed-metal oxides through their thermal decomposition. [3][4][5][6][7][8][9][10][11][12][13] The conventional method for the preparation of oxide materials is based on solid-state reactions between the binary oxides and requires heat treatment at relatively high temperatures as well as repeated grinding procedures. Generally, the assynthesized samples are of low purity, and several ternary oxides of various stoichiometries may coexist with residual reactants.…”

“…[10,12] In the synthesis of oxides through the thermal decomposition of complexes by an effective molecular-to-materials conversion, the choice of ligands is essential. One of the suitable ligands for the synthesis of the molecular precursors for mixed-metal oxides is the oxalate dianion, C 2 O 4 2-. The remarkable coordination ability of this anion is the reason for its wide use for the preparation of heteropolynuclear species of various nuclearities and dimensionalities.…”

“…The remarkable coordination ability of this anion is the reason for its wide use for the preparation of heteropolynuclear species of various nuclearities and dimensionalities. [14] The C 2 O 4 2-anion readily decomposes to the vapour phases CO 2 and CO at low temperatures; hence, oxalate-based solids could serve as a convenient source of oxides. [15] Heterometallic oxalate complexes have already been used for the preparation of mixed-metal oxides.…”

Fabrication of CuO–1.5ZrO2 composite thin film, from heteronuclear molecular complex and its electrocatalytic activity towards methanol oxidation

“…4,5 These molecular precursor complexes frequently display other attractive features including high solubility in common organic solvents, increased hydrolytic stability, ease of purication, and in some cases volatility. 6,7 This combination of physical and chemical properties generally allows SSMPs to be used in sol-gel, metal-organic chemical vapor deposition or metal-organic decomposition processes for the preparation of pure advanced bi-or multimetallic oxide materials with high crystallinity and desirable morphologies at relatively lower temperatures or shorter calcination periods. 8,9 However, to meet such potential advantages, the molecular precursor must involve bridging moieties which contribute to their volatility and clean controlled thermal decomposition without incorporating side reactions or by-products.…”