An effective Fe/Co tripolyphosphate pre-catalyst for oxygen evolution with alkaline electrolyte

In Situ Construction of MnO2–Co3O4 Nanosheet Heterojunctions on Co@NCNT Surfaces for Oxygen Evolution

“…Simultaneously, studies have shown that the binding of NCNTs to metal advances the electrocatalytic performance of the electrocatalyst through the synergistic effect of the metal and NCNTs. 19,33,34 Taking into account the above considerations, we illustrate that a successfully synthesized cobalt-embedded NCNT (Co@ NCNT) by one-step high-temperature pyrolysis not only solves the surface inertia problem for most carbon carriers, but also the anchored cobalt can provide a reaction bridge for the construction of heterojunctions. Especially, the activity of OER was enhanced by the in situ formation of MnO 2 −Co 3 O 4 heterojunctions on the surface of the Co@NCNT carrier using Co in Co@NCNT as a reducing agent for the REDOX reaction with KMnO 4 .…”

“…Particularly, N-doped CNTs (NCNTs) and anchored metal atoms afford more anchor sites for binding active sites. Simultaneously, studies have shown that the binding of NCNTs to metal advances the electrocatalytic performance of the electrocatalyst through the synergistic effect of the metal and NCNTs. ,, …”

Research status, opportunities, and challenges of cobalt phosphate based materials as OER electrocatalysts

“…The strong coordination between the transition metal ion and the tripolyphosphate group contributed to the stability of the compound, which showed excellent OER performance with a stable operation at 1.5 V for 10 h, an overpotential of 254 mV for 10 mA cm −2 , and a Tafel slope of 36.3 mV dec −1 . 35…”

Amorphous Fe/Co-based tannic acid salts as robust oxygen evolution pre-catalysts

“…[8][9][10] Thus, catalysts with high performance are urgently needed to improve this electrochemical oxidation process. 11,12 In addition, oxygen evolution is also involved in many energy conversion devices such as the electrochemical reduction process of CO 2 and various chargeable metal-air batteries. [13][14][15][16] To date, the most effective catalysts for oxygen evolution are still based on the expensive IrO 2 and RuO 2 materials, which can effectively reduce the high overpotential.…”

“…8–10 Thus, catalysts with high performance are urgently needed to improve this electrochemical oxidation process. 11,12 In addition, oxygen evolution is also involved in many energy conversion devices such as the electrochemical reduction process of CO 2 and various chargeable metal–air batteries. 13–16…”