Unveiling the neglected role of oxygen doping in nitrogen-doped carbon for enhanced capacitive deionization performance.

ABSTRACT: Nitrogen-doped carbons (NCs) have demonstrated notable advantages for application in capacitive deionization (CDI). However, the potential roles of different nitrogen configurations in the CDI process, especially how the neglected oxygen doping synergistically works, remain unclear. In this work, we systematically addressed these critical issues and revealed the significant role of trace oxygen doping in enhancing the desalination performance of NC electrodes. By introducing oxygen into nitrogen-doped carbon nanosheets (ONC-S), using guanine as the precursor, we obtained abundant pyridinic and pyrrolic nitrogen configurations. This design aims to synergistically enhance the charge distribution, wettability, and ion diffusion of the target electrodes. Compared with commercial activated carb

SUBMITTER: Li J 

PROVIDER: S-EPMC11865586 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature