Synthesis of La1-xCox Fe1-yCryO3 nano crystallites for enhanced ferroelectric, magnetic and photocatalytic properties

Visible‐light‐driven photocatalytic efficiency of Co‐ and Gd‐doped LaNiO 3 and effect of doping on photochemical, electrochemical, and ferroelectric properties

“…X-ray density of La 1−y Gd y Ni 1−x Co x O 3 increases with increasing the dopant x and y contents. 33 Bulk density of La 1−y Gd y Ni 1 −x Co x O 3 was calculated using Equation (5).…”

“…40 Constant values of dielectric constant at higher frequencies are depicted in Figure 10B and this trend is due the dipoles that cannot keep up in response to alternating field and makes dielectric constant stable at higher frequency, which is in line with previous reports. [5][6][7] As the La and Ni are replaced with Gd and Co, the doped material with increasing concentration of (x, y) is responsible for the change in polarization and change in dielectric constant. Figure 10B represents that by increasing the Gd and Co contents, the dielectric constant values also increased.…”

“…ABO 3 type perovskite materials contain both rare earth and transition metal ions, which furnished excellent properties, that is, catalytic activity, thermal stability, electrical active structure, low band gap, and ferroelectric nature. [5][6][7] Moreover, variation in the sizes of A and B cation offers opportunity to modify the ABO 3 type materials by doping. The ABO 3 type perovskite materials exhibit excellent electrocatalytic, ionic and electronic conductivity, optical, mechanical, and magnetic properties.…”

“…The characteristic desired change in properties of the doped material by partial or complete doping/substitution is mainly because of modifications in oxidation states, modification of structures or variation in the chemical states of the materials, that is, increase in photocatalytic activities by doping/substitutions of A or B sites cations in ABO 3 perovskites mainly due to the change of oxidation, change in chemical state, generations of oxygen vacancies, mobility of oxygen lattices and creation of structural defects which favors the photocatalytic activities of doped materials. [5][6][7][8] At high annealing temperature, the ABO 3 type materials exhibit good specific capacitance due to low agglomeration of particles and also possess good conductivity due to resistivity and stability. [5][6][7] For example, Peisong Tang et al prepared LaNiO 3 NPs by sol-gel method and the photocatalytic activity (PCA) was studied by degrading methyl orange dye under visible light irradiation and promising efficiency was achieved.…”

“…[5][6][7][8] At high annealing temperature, the ABO 3 type materials exhibit good specific capacitance due to low agglomeration of particles and also possess good conductivity due to resistivity and stability. [5][6][7] For example, Peisong Tang et al prepared LaNiO 3 NPs by sol-gel method and the photocatalytic activity (PCA) was studied by degrading methyl orange dye under visible light irradiation and promising efficiency was achieved. 24 Similarly, Harikrishnan and Bose fabricated LaNiO 3 NPs by coprecipitation route and the LaNiO 3 NPs showed higher value of specific capacitance (<200 Fg −1 ) at 2 Ag −1 .…”