Emerging coaxial nanostructures for clean energy generation and storage systems: A minireview

Coaxial nanomaterials (CxNMs) can be considered as nanocomposites that share at least one common axis. They have outstanding properties that make them of interesting in applications for clean energy generation and storage systems (CEGSS). In this minireview, we have made a compilation of the most recently published works (in the last 4 years) on CxNMs with application in CEGSS. First, we have proposed a classification for CxNMs based on their dimensionality. Then, the most used synthesis routes to obtain CxNMs and the correlation between synthesis parameters and their resulting properties are reviewed. Finally, the applications of CxNMs in rechargeable batteries, supercapacitors, and solar cells are discussed, highlighting the publications with the best performances and the key factors found by these authors.