Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 10, 2024

Abstract Rapid advancements in nano‐exfoliation and dissolution strategies have effectively disassembled hierarchical biomass materials into nanosheets, nanofibers, even atomic‐scale molecular chains, making them highly applicable osmotic energy harvesting. However, sub‐nanosheets, situated between chains remain unexplored due to the demanding nature of their preparation methods. Herein, a pseudosolvent‐driven programmable ion intercalation‐exfoliation strategy is developed that triggers exfoliation along lowest crystal plane (010), as simulations confirm. This method allows for controlled chitin assemblies ranging from nanofibers sub‐nanometer sheets chains. Specifically, compared nanofibrils, sheet interfacial assembly exhibits higher surface charge density interplanar spacing, leading 2.3‐fold increase transport flux while maintaining high‐performance selective behavior, confirmed by both experiments scale simulations, respectively. These enhancements result superior ionic conductivity power conversion performance (8.45 W m −2 ) under 50‐fold salinity gradient, surpassing commercial standards (5.0 other all‐biomass membrane systems (Max. 2.87 ). work provides insights at enhancing

Язык: Английский