One step synthesis of a bimetallic (Ni and Co) metal–organic framework for the efficient electrocatalytic oxidation of water and hydrazine

Abstract

A series of metal-organic frameworks (MOFs) with varying Ni:Co ratios are synthesized by an easy one-step solvothermal method using trimesic acid as an organic linker. Physicochemical characterization of the synthesized...

A Co and Fe bimetallic MOF with enhanced electrocatalytic oxygen evolution performance: exploring the electronic environment modifications upon Fe incorporation

“…40 The peaks at 1600 and 1380 cm À1 are ascribed to -COO asymmetric and symmetric stretchings. 14 The peaks at 1233 and 1026 cm À1 are attributed to the vibrations of the H 2 bpdc ligand 41 and the peaks at 771 and 702 cm À1 are attributed to the out of plane -CH bending vibrations of the ring. 42 Furthermore, the peaks in the region 400 to 585 cm À1 (shown in the ESI, † Fig.…”

“…Metal-organic frameworks (MOFs) are being explored in several fields because of their porous nature and unique electrical, optical, and electronic properties. [14][15][16] In the beginning, MOFs were mainly studied for gas adsorption and storage applications; however, recently owing to their unique structural framework and porosity, they have also been used in the areas of gas sensing, 17,18 drug delivery, 19 carbon dioxide reduction, 20 dye adsorption, 21 supercapacitor applications 22 and electrochemical water splitting. 23,24 The major drawbacks of MOFs are low mass permeability and weak conductivity-induced obstruction of the active sites.…”

“…23 Furthermore, bimetallic MOFs show improved activity and durability in comparison to monometallic counterparts mainly due to the synergistic effect of the metal active centers and the change in the environment around the active centers. 14,29 It is well-recognized that the chief active catalysts for the OER are transition metal oxyhydroxides and upon the application of a positive bias, the MOFs completely transform into metal oxyhydroxide sheets and exhibit better OER performance. 23 According to the reports of Subbaram et al, the OER performance of first-row transition metals in the divalent oxidation state follows the order Ni 4 Co 4 Fe 4 Mn.…”

A Linear Trinuclear Acetate Bridged Cobalt Complex Containing Pyridine-Based Bicompartmental Ligand: Synthesis, Structural, Magnetic, and Electrocatalytic Oxygen Evolution Studies

“…6−9 Researchers have focused on designing new electrocatalysts with high activity and durability, low overpotential, and strong stability under harsh operating conditions. 10 These efforts have led to discovering several promising non-noble metal-based OER electrocatalysts that exhibit high performance and stability. 11−15 Despite these developments, there remain several challenges that need to be addressed in the field of electrocatalysis.…”

“…Therefore, there is a growing need to develop non-noble metal-based efficient and durable OER electrocatalysts using a cost-effective and environmentally friendly technique. In recent years, considerable progress has been made in the development of efficient OER electrocatalysts based on non-noble metals. − Researchers have focused on designing new electrocatalysts with high activity and durability, low overpotential, and strong stability under harsh operating conditions . These efforts have led to discovering several promising non-noble metal-based OER electrocatalysts that exhibit high performance and stability. − Despite these developments, there remain several challenges that need to be addressed in the field of electrocatalysis .…”