Authors : Jyoti Kumari; Rabindra Kumar; Vijay Kumar; Sima Kumari

Volume/Issue : Volume 11 - 2026, Issue 9 - September

Google Scholar : https://tinyurl.com/9cvw9k9r

DOI : https://doi.org/10.38124/ijisrt/26sep802

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Abstract : Mixed metal oxide perovskites have emerged as an important class of functional materials because of their outstanding structural flexibility, chemical stability, and electronics properties. The general formula of ABO3 mixed oxide of rare-earth transition metals allows for partial or total substitution at both the A and B sites, allowing for precise control over catalytic activity, electrical conductivity, magnetic behavior, and optical properties. The amount of accessible active sites, adsorption capacity, and mass transport properties are all determined by the BET surface area, which is one of the many parameters that determine their catalytic effectiveness. Particle size, pore distribution, and surface shape are all greatly impacted by variations in synthesis processes, which ultimately alter the catalyst's surface area. This review discusses the relationship between surface area and catalytic efficiency in mixed metal oxide perovskites, with emphasis on photocatalytic and heterogeneous catalytic applications. The mechanisms through which surface area enhances adsorption, charge transfer, and reaction kinetics are also examined. Furthermore, strategies for increasing surface area through nanostructuring, template-assisted synthesis, and defect engineering are summarized. The review highlights the importance of optimizing surface characteristics to improve catalytic performance in environmental remediation and energy-related applications.

Keywords : Mixed Metal Oxide, Perovskite, Surface Area, Photocatalysis, Catalysis, BET Surface Area.

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