Metal Oxides and Magnetic nanoparticles have been recognized as a class of nanostructured materials of current interest due to its well-known outstanding physical and chemical properties; especially when used in combination with other metal nano-particles. These kinds of nanostructured materials play an important role in many aspects of research ranging from catalysis and biology to material science, advanced technological, medical applications, and green chemistry. The metal oxide nano catalysts are also of great importance in improving the thermal-catalytic decomposition performance. The advanced and unique magnetic, electronic, and catalytic properties of the materials in the nano scale attracted research centers to investigate this area of science deeply. In the field of catalysis; separation of catalysts is a vital step especially in medical and therapeutic applications and mainly in cross coupling reactions
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