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

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/cm2 under alkaline
conditions. Further, the CoCd-MOF exhibits remarkable recyclability
over 1000 cycles.