Dongqi Li

Jun 7, 2024 | nature.com | Dongqi Li |Wenhao Zheng |Michal Horak |Shengqiang Zhou |Paweł P. Michałowski |Ehrenfried Zschech | +4 more

AbstractSurface terminations profoundly influence the intrinsic properties of MXenes, but existing terminations are limited to monoatomic layers or simple groups, showing disordered arrangements and inferior stability. Here we present the synthesis of MXenes with triatomic-layer borate polyanion terminations (OBO terminations) through a flux-assisted eutectic molten etching approach.

Mar 7, 2024 | nature.com | Wei Li |Xiaodong Li |Dongqi Li |Sein Chung |Kilwon Cho |Zhen Zhang | +4 more

AbstractThe pressing demand for sustainable energy storage solutions has spurred the burgeoning development of aqueous zinc batteries. However, kinetics-sluggish Zn2+ as the dominant charge carriers in cathodes leads to suboptimal charge-storage capacity and durability of aqueous zinc batteries. Here, we discover that an ultrathin two-dimensional polyimine membrane, featured by dual ion-transport nanochannels and rich proton-conduction groups, facilitates rapid and selective proton passing.