1. I Single-Atom Doped P-Rich CoP n Nanocluster@CoP with Enhanced HER.
- Author
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Wang H, Zhang C, Zhang D, Jiang L, Gao Y, Zhuang T, and Lv Z
- Abstract
Constructing I single-atom (I
SA ) doped CoP electrocatalyst for HER is extremely challenging and has not been reported to date. Herein, an ISA doping-phosphatization strategy is proposed to prepare a novel I single-atom doped P-rich CoPn nanocluster@CoP electrocatalyst (ISA -CoPn /CoP) with enhanced HER performance first. ISA -CoPn /CoP shows a low overpotential of only 44 and 81 mV in 0.5 m H2 SO4 solution, to drive a current density of 10 and 100 mA cm-2 . ISA and P-rich CoPn nanocluster show unique synergies, which can optimize the H adsorption energy and accelerate the kinetics of HER in the CoP system. The intermediate I─H bond vibration peak is directly observed through in situ Raman testing, demonstrating that ISA doping helps accelerate the HER process. Additionally, the ΔGH of ISA -CoPn /CoP is only 0.05 eV by density functional theory (DFT) calculation, which is conducive to H2 evolution., (© 2024 Wiley‐VCH GmbH.)- Published
- 2024
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