01574nas a2200193   4500008004100000022001400041245009000055210006900145260007100214300001400285490000700299520083100306100003101137700001901168700002901187700002001216700002401236856012001260       2016                        eng d  a0897-475600aCobalt-modified covalent organic framework as a robust wateroxidation electrocatalyst0 aCobaltmodified covalent organic framework as a robust wateroxida  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUN  a4375-43790 v283 a<p>The development of stable, efficient oxygen evolution reaction (OER) catalyst capable of oxidizing water is one of the premier challenges in the conversion of solar energy to electrical energy, because of its poor kinetics. Herein, a bipyridine-containing covalent organic framework (TpBpy) is utilized as an OER catalyst by way of engineering active Co(II) ions into its porous framework. The as-obtained Co-TpBpy retains a highly accessible surface area (450 m(2)/g) with exceptional stability, even after 1000 cycles and 24 h of OER activity in phosphate buffer under neutral pH conditions with an overpotential of 400 mV at a current density of 1 mA/cm(2). The unusual catalytic stability of Co-TpBpy arises from the synergetic effect of the inherent porosity and presence of coordinating units in the COF skeleton.</p>1 aAiyappa, Harshitha, Barike1 aThote, Jayshri1 aShinde, Digambar, Balaji1 aBanerjee, Rahul1 aKurungot, Sreekumar  uhttps://library.ncl.res.in/content/cobalt-modified-covalent-organic-framework-robust-wateroxidation-electrocatalyst