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Nitridation-induced metal–organic framework nanosheet for enhanced water oxidation electrocatalysis
- Source :
- Journal of Energy Chemistry. 64:531-537
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- We report the synthesis of nitridation-induced NiFe-MOF through post-synthetic functionalization of terminal ligand in NiFe-MOF nanosheet. We directly identify the key factor of amino ligand in N-NiFe-MOF for boosting the OER performance through combining single X-ray crystallographic characterization and in-situ Raman tracking, as well as ex-situ spectroscopy analysis. Density functional theory (DFT) calculations and experimental results indicate irreversible phase reconstruction from amino ligand oxidation prior to OER could lead to the optimized ΔG*O, resulting in the remarkable OER performance with an overpotential of 258 mV to obtain the current density of 100 mA cm−2 in 1.0 M KOH solution. Our work will provide new strategy for rational designing advanced MOF-based OER electrocatalysts.
- Subjects :
- Materials science
Ligand
Energy Engineering and Power Technology
02 engineering and technology
Overpotential
010402 general chemistry
021001 nanoscience & nanotechnology
Electrocatalyst
01 natural sciences
0104 chemical sciences
symbols.namesake
Fuel Technology
Chemical engineering
Electrochemistry
symbols
Surface modification
Metal-organic framework
Density functional theory
0210 nano-technology
Raman spectroscopy
Energy (miscellaneous)
Nanosheet
Subjects
Details
- ISSN :
- 20954956
- Volume :
- 64
- Database :
- OpenAIRE
- Journal :
- Journal of Energy Chemistry
- Accession number :
- edsair.doi...........11fd2bf86cc63188c1afc78b7087b1a3