Ultrafast Sulfur Redox Dynamics Enabled by a PPy@N-TiO₂ Z-Scheme Heterojunction Photoelectrode for Photo-Assisted Lithium-Sulfur Batteries.

ABSTRACT: Photo-assisted lithium-sulfur batteries (PALSBs) offer an eco-friendly solution to address the issue of sluggish reaction kinetics of conventional LSBs. However, designing an efficient photoelectrode for practical implementation remains a significant challenge. Herein, we construct a free-standing polymer-inorganic hybrid photoelectrode with a direct Z-scheme heterostructure to develop high-efficiency PALSBs. Specifically, polypyrrole (PPy) is in situ vapor-phase polymerized on the surface of N-doped TiO₂ nanorods supported on carbon cloth (N-TiO₂/CC), thereby forming a well-defined p-n heterojunction. This architecture efficiently facilitates the carrier separation of photo-generated electron-hole pairs and significantly enhances carrier transport by creating a built

SUBMITTER: Zhao F 

PROVIDER: S-EPMC12756215 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature