Sodium Pre-Intercalation-Based Na₃-δ-MnO₂@CC for High-Performance Aqueous Asymmetric Supercapacitor: Joint Experimental and DFT Study.

ABSTRACT: Electrochemical energy storage devices are ubiquitous for personal electronics, electric vehicles, smart grids, and future clean energy demand. SCs are EES devices with excellent power density and superior cycling ability. Herein, we focused on the fabrication and DFT calculations of Na₃-δ-MnO₂ nanocomposite, which has layered MnO₂ redox-active sites, supported on carbon cloth. MnO₂ has two-dimensional diffusion channels and is not labile to structural changes during intercalation; therefore, it is considered the best substrate for intercalation. Cation pre-intercalation has proven to be an effective way of increasing inter-layered spacing, optimizing the crystal structure, and improving the relevant electrochemical behavior of asymmetric aqueous

SUBMITTER: Rahman AU 

PROVIDER: S-EPMC9414395 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature