Synergetic hydrogen-bond network of functionalized graphene and cations for enhanced atmospheric water capture.

ABSTRACT: Water molecules at the solid-liquid interface display intricate behaviors sensitive to small changes. The presence of different interfacial components, such as cations or functional groups, shapes the physical and chemical properties of the hydrogen-bond network. Understanding such interfacial hydrogen-bond networks is essential for a large range of applications and scientific questions. To probe the interfacial hydrogen-bond network, atmospheric water capture is a powerful tool. Here, we experimentally observe that a calcium ion on a calcium-intercalated graphene oxide aerogel (Ca-GOA) surface captures 3.2 times more water molecules than in its freestanding state. From experimental Van't Hoff estimation and density functional theory (DFT) calculations, we uncover the synergistically enhan

SUBMITTER: Ren X 

PROVIDER: S-EPMC12207421 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature