The cobalt-seleno-based coordination complex, [Co{(SePiPr2)2N}2], is reported with respect to its catalytic activity in oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solutions. An overpotential of 320 and 630 mV was required to achieve 10 mA cm-2 for OER and HER, respectively. The overpotential for OER of this CoSe4-containing complex is one of the lowest that has been observed until now for molecular cobalt(II) systems, under the reported conditions. In addition, this cobalt-seleno-based complex exhibits a high mass activity (14.15 A g-1) and a much higher turn-over frequency (TOF) value (0.032 s-1) at an overpotential of 300 mV. These observations confirm analogous ones already reported in the literature pertaining to the potential of molecular cobalt-seleno systems as efficient OER electrocatalysts.
The cobalt-seleno-bapan> class="Gene">sed coordination complex, [Co{(SePiPr2)2N}2], is reported with respect to its catalytic activity in oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solutions. An overpotential of 320 and 630 mV was required to achieve 10 mA cm-2 for OER and HER, respectively. The overpotential for OER of this CoSe4-containing complex is one of the lowest that has been observed until now for molecular cobalt(II) systems, under the reported conditions. In addition, this cobalt-seleno-based complex exhibits a high mass activity (14.15 A g-1) and a much higher turn-over frequency (TOF) value (0.032 s-1) at an overpotential of 300 mV. These observations confirm analogous ones already reported in the literature pertaining to the potential of molecular cobalt-seleno systems as efficient OER electrocatalysts.
Entities:
Keywords:
cobalt complex; electrocatalysis; hydrogen evolution; oxygen evolution; water splitting
Authors: Arunkumar Panneerselvam; Chinh Q Nguyen; John Waters; Mohammad A Malik; Paul O'Brien; James Raftery; Madeleine Helliwell Journal: Dalton Trans Date: 2008-07-23 Impact factor: 4.390
Authors: Yujie Sun; Julian P Bigi; Nicholas A Piro; Ming Lee Tang; Jeffrey R Long; Christopher J Chang Journal: J Am Chem Soc Date: 2011-05-25 Impact factor: 15.419
Authors: Marian Chatenet; Bruno G Pollet; Dario R Dekel; Fabio Dionigi; Jonathan Deseure; Pierre Millet; Richard D Braatz; Martin Z Bazant; Michael Eikerling; Iain Staffell; Paul Balcombe; Yang Shao-Horn; Helmut Schäfer Journal: Chem Soc Rev Date: 2022-06-06 Impact factor: 60.615
Authors: Daan den Boer; Quentin Siberie; Maxime A Siegler; Thimo H Ferber; Dominik C Moritz; Jan P Hofmann; Dennis G H Hetterscheid Journal: ACS Catal Date: 2022-04-04 Impact factor: 13.700