Development of Mn-MOF/CuO composites as platform for efficient electrocatalytic OER

Environmental contamination and an energy shortage pose severe threats to the long-term viability of the modern civilization. The production of sustainable, long-lasting storing energy and a clean means to create hydrogen are both made possible through electrolysis of water. Metal-organic frameworks and their composites have nowadays become the most efficient multipurpose nanomaterials due to their large contact area, change-able permeability, adaptability of framework, and capacity to be employed as constituents with such a variety of structural shapes. For the OER process in 1 M potassium hydroxide electrolyte, the n-MOF/CuO nanoparticles were fabricated using a hydrothermal technique in the current study. The produced electrode materials were characterised by examining their form, crystalline nature, and oxidation states using a wide range of analytical approaches. Overall, the composite exhibits a low overpotential of 247 mV to obtain a power density of 10 mA/ cm-2, a smaller Tafel slope of 48 mV dec-1, and also provides durability for 50-hours period. This research provides a straightforward synthesized approach for making incredibly beneficial, inexpensive, and binder-free electrode materials.

Automated summary

Environmental contamination and energy shortage threaten the sustainability of modern civilization. Electrolysis of water enables the production of sustainable, long-lasting energy storage and clean hydrogen creation. In this study, n-MOF/CuO nanoparticles were fabricated as electrode materials for the OER process in 1 M potassium hydroxide electrolyte using a hydrothermal technique. The composite material exhibited low overpotential, small Tafel slope, and long-term durability. This research presents a straightforward and cost-effective approach to synthesizing binder-free electrode materials.