Significant enhancement of proton conductivity in solid acid at the monolayer limit.

ABSTRACT: Proton transport in nanofluidic channels is not only fundamentally important but also essential for energy applications. Although various strategies have been developed to improve the concentration of active protons in the nanochannels, it remains challenging to achieve a proton conductivity higher than that of Nafion, the benchmark for proton conductors. Here, taking H₃Sb₃P₂O₁₄ and HSbP₂O₈ as examples, we show that the interactions between protons and the layer frameworks in layered solid acid H_nM_nZ₂O_3n+5 are substantially reduced at the monolayer limit, which significantly increases the number of active protons and consequently improves the proton conductivities by ∼8 ‒ 66 times

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC10973524 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature