Preparation of Mn, Fe and Co based perovskite catalysts using microemulsions

Characterization and catalytic investigation of NO+CO reaction on perovskites of the general formula LaxM1−xFeO3 (M=Sr and/or Ce) prepared via a reverse micelles microemulsion route

“…The nominal compositions of the final structures were La 0.85 Sr 0.15 FeO 3 (LSFOr), La 0.8 Ce 0.2 FeO 3 (LCFOr) and La 0.8 Sr 0.1 Ce 0.1 FeO 3 (LSCFOr). In case of Sr the incorporation into the perovskite structure (LSFOr sample) was successful, but in case of Ce the incorporation was unsuccessful as it has also been observed in previous reports [12][13][14][15][16][17][18]. The objectives of this work were to investigate the characteristics of perovskite materials when prepared using the microemulsion technique and to test the catalytic performance of the materials in the catalytic reaction of the reduction of NO by CO.…”

“…The characterization and catalytic results of the above three perovskite oxides were compared with the corresponding results of a LaFeO 3 (LFOr) perovskite oxide which has also been prepared via microemuslion technique and has previously been reported [19]. The results were also compared with the results of similar solids which have been prepared via the microemulsion method by other workers [20] and with similar solids prepared by other methods.…”

Modified LaCoO3 nano-perovskite catalysts for the environmental application of automotive CO oxidation

“…These methods include pyrolysis, co-precipitation, citrate complexation, spray-drying, freeze-drying, microemulsion sol-gel process, etc. [10][11][12][13]. Among those, the benchmark methods are coprecipitation and citrate methods [7,10].…”

Sol-gel preparation and characterization of non-substituted and Sr-substituted lanthanum cobaltates

“…Lanthanum cobaltate has been synthesized in the form of single crystals [48] and thin films by metal-organic chemical liquid [29] and chemical vapor deposition [49] techniques. For the preparation of bulk lanthanum cobaltate ceramics, different methods, such as solid state [50][51][52], co-precipitation [53,54], spray-pyrolysis [55], microemulsion [56], combustion [19,57,58] and reactive grinding [59] techniques could be used. Sol-gel chemistry routes using citric acid [18], EDTA [60] and glycine [61] as complexing agents were also suggested for the preparation of LaCoO 3 -based ceramics.…”