Multivariate covalent organic frameworks with tailored electrostatic potential promote nitrate electroreduction to ammonia in acid.

ABSTRACT: The direct synthesis of ammonia from nitrate (NO₃^-) reduction in acid is a promising approach for industrialization. However, the difficulty arises from the intense competition with the inevitable hydrogen evolution reaction, which is favoured due to the overwhelming protons (H⁺). Here, we systematically explore and rationally optimize the microenvironment using multivariate covalent organic frameworks (COFs) as catalyst adlayers to promote the nitrate-to-ammonia conversion in acid. With the application of tailored positive electrostatic potential generated over the multivariate COFs, both the mass transfer of NO₃^- and H⁺ are regulated via appropriate electrostatic interactions, thus realizing the priority of NO₃R

SUBMITTER: Cheng Q 

PROVIDER: S-EPMC12009421 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature