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Synthetic Engineering of the Pristine MOF/NiMn-LDH Nanocomposites as IrO 2-Like Electrocatalysts for Water Oxidation with High Stability by Reza Abazari; Soheila Sanati; Ali Morsali is a Economics, Econometrics and Finance article available to read on EtoBox.

What is Synthetic Engineering of the Pristine MOF/NiMn-LDH Nanocomposites as IrO 2-Like Electrocatalysts for Water Oxidation with High Stability about?

Oxygen evolution reaction (OER) is an important half-reaction of the water splitting, as a way for producing a renewable fuel. A major challenge in OER is to search stable and low cost electropatalysts with low overpotentials. In this investigation, a Co-MOF@NiMn-LDH nanocomposite is introduced as an efficient electrocatalyst for water oxidation. The electrocatalytic efficiency of Co-MOF@NiMn-LDH nanocomposites in 2M KOH was excellent, and an overpotential of 293 mV was obtained at the current density of 10 mA cm -2 , which is very close to that of IrO 2 and most LDH-and MOF-based electrocatalysts. The stability of these electrocatalysts was confirmed by performing chronopotentiometry tests for OER for hours. The presence of rich electroactive sites, porous structure, high surface area and synergistic effect between Co-MOF and NiMn-LDH results in a high electrocatalytic efficiency and stability of the synthesized composite toward OER. The interface between the two components of the composite can improve the electronic structure and, in turn, the electrocatalytic behavior of the composite. The introduction of this composite paves the way to introduce other composites with this facil

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Author

Reza Abazari; Soheila Sanati; Ali Morsali

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Economics, Econometrics and Finance (Social Sciences)