Abstract
This chapter provides a comprehensive overview of the principles of ceramic (metal oxide) growth from polymeric fibers obtained by electrospinning and the details of employing the principles to synthesize a variety of material morphologies. The mechanisms involved in the formation of ceramic micro-nanostructures through electrospinning include classical nucleation and growth, Ostwald ripening, Kirkendall effect, gas diffusion, and phase separation. Subsequently, we detail the synthesis of non-conventional morphologies such as flower-shaped, rice grain-shaped, and leaf-shaped, octahedron-shaped micro-nanostructures as well as their composites of binary and ternary metal oxides by manipulating the nucleation and growth principles. The usefulness of these advanced micro-nanostructures for energy conversion and storage in diverse protocols as dye-sensitized solar cells, perovskite solar cells, lithium ion batteries, and electrochemical capacitors are demonstrated.