Thermochemical splitting of CO2 using solution combustion synthesized LaMO3 (where, M = Co, Fe, Mn, Ni, Al, Cr, Sr)

Structural, magnetic, and dielectric properties of solution combustion synthesized LaFeO3, LaFe0.9Mn0.1O3, and LaMnO3 perovskites

“…The nonstoichiometry of anions and cations, presence of multiplicity in the oxidation states of metals, and distortion in cation configuration are the major reasons for their excellent multifunctional properties. 2 Among perovskite oxides, La-based perovskites such as LaFeO 3 , 5,12-18 LaMnO 3 , [12][13][14][15] LaCrO 3 , 12 LaCoO 3 , 12,13,15 and LaNiO 3 , 15 etc. have been paid much attention because of their specific catalytic, 1,3,[12][13][14] photocatalytic, 4 electrocatalytic, 5,15,19 magnetic, [16][17][18][19] electrical, 16,19 optical, [17][18][19] and sensing 17 properties.…”

“…2 Among perovskite oxides, La-based perovskites such as LaFeO 3 , 5,12-18 LaMnO 3 , [12][13][14][15] LaCrO 3 , 12 LaCoO 3 , 12,13,15 and LaNiO 3 , 15 etc. have been paid much attention because of their specific catalytic, 1,3,[12][13][14] photocatalytic, 4 electrocatalytic, 5,15,19 magnetic, [16][17][18][19] electrical, 16,19 optical, [17][18][19] and sensing 17 properties. It has been well-documented that these properties strongly depend on various characteristics like the degree of crystallinity, phase purity, particle size, and particle shape.…”

“…Modification by doping of requisite metal ions with +2 and +3 oxidation states into the lattice also has an impact on their properties. In this regard, it must be mentioned that different parameters such as preparation method, 17 thermal treatment, 17,20,21 crystallite size, 18 morphology, 21 nature of doped cation, [12][13][14][15][16]22 and dopant concentration, 16,22 etc. have a significant impact on the magnetic [16][17][18][20][21][22][23][24][25] and dielectric 21 properties of LaFeO 3 -based materials.…”

“…24 Ce doping has been observed to enhance the magnetic properties of LaFeO 3 in comparison with undoped LaFeO 3 and solution combustion synthesis has been found to be a more effective preparation process as compared to the coprecipitation method, and it has a better impact on the physicochemical properties of Ce-doped LaFeO 3 . 25 Furthermore, LaMnO 3 has been in the literature for its applications in catalysis, [12][13][14]19,26 electrocatalysis, 15,19 fuel cell electrodes, 19 magnetic memory devices, 19 spintronics, 19 and so on.…”

“…Undoped and doped LaFeO 3 have been prepared by various routes such as sol-gel, 17,23 hydrothermal, 17,21 polymerized complex, 18,22 co-precipitation, 25 electrospinning, 20 solution combustion synthesis, [12][13][14][15]24,25,27 Pechini, 16 and microwave synthesis. 17 Among these synthesis routes, solution combustion synthesis (SCS) has drawn considerable recognition for its simple nature, cost-effectiveness, energy-and time-saving feature, and production of pure homogeneous nano-sized solid materials.…”