Phase dependent thermal and spectroscopic responses of Al2O3 nanostructures with different morphogenesis

Abstract

In this review, we discuss new developments and recent trends in both amorphous and crystalline Al₂O₃ oxide nanofluids related to their phase dependent characteristics in detail. Nowadays, nanofluids have gained significant attention with the enhanced energy/heat efficiency, which is highly desirable to improve the performance of any energy based devices and technology. This review article systematically describes the various chemical synthesis routes followed by bottom-up approaches, surface morphologies, and detailed microstructure characteristics, and phase dependent thermal as well as optical properties for potential use of such materials in various applications.