Low-cost, high-efficiency, and non-noble metal electrocatalysts are greatly urgent for sustainable energy conversion technologies with CO 2 -free emission, but these are challenging to construct. Herein, we demonstrate a novel cobaltic-formate frameworks (Co-FFs)-induced strategy to obtain porous flowerlike CoP/CoP 2 composite threaded with carbon nanotubes (CoP/CoP 2 /CNTs). In this approach, a wet chemical precipitation process and then a gas–solid phosphorization method are involved to synthesize the flowerlike Co-FFs/CNTs precursor and the porous CoP/CoP 2 /CNTs composite, respectively. As bifunctional electrocatalyst, the composite attains a current density of 10 mA cm –2 at a low driving overpotentials of 270 mV for OER and 126 mV for HER in basic and acidic media, respectively. Furthermore, it discloses an exceptional electrocatalytic durability. This excellent electrochemical performance can be attributed to its porous structure and synergistic contribution among different components. The present work provides a facile procedure for fabricating multifunctional materials coated with CNTs.
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Zhang et al. (2020) studied this question.
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