Jump to main content
Jump to site search


Constructing 2D MOFs from 2D LDHs: a highly efficient and durable electrocatalyst for water oxidation

Author affiliations

Abstract

Two-dimensional (2D) materials have been widely applied in electrochemical conversion technologies, especially toward the water oxidation reaction (WOR) in metal–air batteries and water splitting. Here, we demonstrate a facile ligand-assisted synthetic method, promoting the transformation of 2D layered double hydroxides (LDHs) into 2D metal–organic frameworks (MOFs). The CoFe-LDH precursor acts as an adjustable metal release source, controlling heterogeneous nucleation for 2D MOFs. Compared with most cobalt-based electrocatalysts, the optimized CoFe 2D MOFs exhibit a superior WOR performance on glassy-carbon electrodes (overpotential of 274 mV at 10 mA cm−2 and a Tafel slope of 46.7 mV dec−1) and long-term stability, due to the unique 2D characteristics and coupling effect between Co and Fe ions. More importantly, this work highlights the ability to transform 2D LDHs into 2D MOFs and reveals the intrinsic factors for excellent performance in the WOR.

Graphical abstract: Constructing 2D MOFs from 2D LDHs: a highly efficient and durable electrocatalyst for water oxidation

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Aug 2019, accepted on 20 Nov 2019 and first published on 22 Nov 2019


Article type: Paper
DOI: 10.1039/C9TA09397D
J. Mater. Chem. A, 2020, Advance Article

  •   Request permissions

    Constructing 2D MOFs from 2D LDHs: a highly efficient and durable electrocatalyst for water oxidation

    M. Cai, Q. Liu, Z. Xue, Y. Li, Y. Fan, A. Huang, M. Li, M. Croft, T. A. Tyson, Z. Ke and G. Li, J. Mater. Chem. A, 2020, Advance Article , DOI: 10.1039/C9TA09397D

Search articles by author

Spotlight

Advertisements