Co(II)-Doped Cd-MOF as an Efficient Water Oxidation Catalyst: Doubly Interpenetrated Boron Nitride Network with the Encapsulation of Free Ligand Containing Pyridine Moieties

Abstract

Development of an efficient and inexpensive water oxidation electrocatalyst using the earth-abundant elements is still far to go. Herein, a novel strategy has been demonstrated for developing the OER electrocatalyst by doping Co(II) in to a three-dimensional Cd-based MOF that contains a naked pyridine moieties in the form of uncoordinated ligand. Electrochemically active CoCd-MOF was resulted through the doping of Co(II) into the inactive Cd-MOF. CoCd-MOF exhibited very high catalytic activity in water oxidation reaction. An overpotential of 353 mV is required to produce an anodic current density of 1 mA/cm under alkaline conditions. Further, the CoCd-MOF exhibits remarkable recyclability over 1000 cycles.

A Green Metal–Organic Framework‐Cyclodextrin MOF: A Novel Multifunctional Material Based Triboelectric Nanogenerator for Highly Efficient Mechanical Energy Harvesting

“…The MOF has several superior properties that enhance its capabilities in diverse applications such as ion exchange, gas sensors, drug delivery, solar cell, dye degradation, and recognization of molecules. [ 10–13 ] The involvement of biomolecules as an organic ligand can act promising because of their biocompatibility. The biomolecules can offer a wide range of metal‐binding sites due to their coordination modes.…”

MOF-templated cobalt nanoparticles embedded in nitrogen-doped porous carbon: a bifunctional electrocatalyst for overall water splitting

“…Given these aspects, there is an essential necessity for the development of stable, cost-effective, durable and highly efficient bifunctional electrocatalysts for sustainable overall water splitting. A variety of alternatives including, heteroatom-doped nanostructured carbon materials 14 and hybrid electrocatalysts based on transition metal oxides 15 /sulphides 16 /selenides 17 / phosphides, 18,19 supported by carbon materials were developed that demonstrated promising electrocatalytic activity for the oxygen reduction reaction (ORR), 20 OER [21][22][23][24][25][26] and HER. [27][28][29] Interestingly, among transition metals, Co-, Ni-and Fe-based hybrid electrocatalysts such as CoSe, 30 NiCo 2 S 4 , 31 FeNiOH/ NF, 32 iron phosphide nanotubes (IPNTs), 33 Co-P, 34 cobalt-cobalt oxide/N-doped carbon hybrids (CoO x @CN), 35 porous Co phosphide/phosphate thin lms (PCPTFs) 36 and CoP NA/CC 37 were explored as bifunctional electrocatalyst for overall water splitting.…”

Tailoring Coordination Polymers by Substituent Effect: A Bifunctional CoII‐Doped 1D‐Coordination Network with Electrochemical Water Oxidation and Nitroaromatics Sensing

“…Here the 1D network material of CP‐ 3 exhibited interesting properties which are not shown by the 3D network materials of CP‐ 1 and CP‐ 2 . Recently, we have demonstrated a strategy for the development of MOF based OER electrocatalyst by doping Co II into a three‐dimensional Cd‐based MOF that contains an uncoordinated ligand containing pyridyl moieties in its pores . In similar lines, the presence of uncoordinated pyridyl group in 1D network of CP‐ 3 prompted us to dope it with electrochemically active metal ion Co II to obtain an electrocatalyst for water oxidation.…”