Issue 45, 2021

Design strategies of two-dimensional metal–organic frameworks toward efficient electrocatalysts for N2 reduction: cooperativity of transition metals and organic linkers

Abstract

Two-dimensional (2D) metal–organic frameworks (MOFs) serve as emerging electrocatalysts due to their high conductivity, chemical tunability, and accessibility of active sites. We herein proposed a series of 2D MOFs with different metal atoms and organic linkers with the formula M3C12X12 (M = Cr, Mo, and W; X = NH, O, S, and Se) to design efficient nitrogen reduction reaction (NRR) electrocatalysts. Our theoretical calculations showed that metal atoms in M3C12X12 can efficiently capture and activate N2 molecules. Among these candidates, W3C12X12 (X = O, S, and Se) show the best NRR performance due to their high activity and selectivity as well as low limiting potential (−0.59 V, −0.14 V, and −0.01 V, respectively). Moreover, we proposed a d-band center descriptor strategy to screen out the high activity and selectivity of M3C12X12 for the NRR. Therefore, our work not only demonstrates a class of promising electrocatalysts for the NRR but also provides a strategy for further predicting the catalytic activity of 2D MOFs.

Graphical abstract: Design strategies of two-dimensional metal–organic frameworks toward efficient electrocatalysts for N2 reduction: cooperativity of transition metals and organic linkers

Supplementary files

Article information

Article type
Paper
Submitted
27 Seb 2021
Accepted
27 Oki 2021
First published
27 Oki 2021

Nanoscale, 2021,13, 19247-19254

Design strategies of two-dimensional metal–organic frameworks toward efficient electrocatalysts for N2 reduction: cooperativity of transition metals and organic linkers

R. Wang, C. He, W. Chen, L. Fu, C. Zhao, J. Huo and C. Sun, Nanoscale, 2021, 13, 19247 DOI: 10.1039/D1NR06366A

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