Exploring The Synergistic Effect Of CoSeP/CoP Interface Catalyst For Efficient Urea Electrolysis.
Borong LuChunmei LvYing XieLianxin GaoJun YanKai ZhuGuiling WangDianxue CaoDianxue CaoPublished in: Small (Weinheim an der Bergstrasse, Germany) (2023)
Electrocatalytic oxidation of urea (UOR) is a potential energy-saving hydrogen production technology that can replace oxygen evolution reaction (OER). Therefore, CoSeP/CoP interface catalyst is synthesized on nickel foam using hydrothermal, solvothermal, and in situ template methods. The strong interaction of tailored CoSeP/CoP interface promotes the hydrogen production performance of electrolytic urea. During the hydrogen evolution reaction (HER), the overpotential can reach 33.7 mV at 10 mA cm -2 . The cell voltage can reach 1.36 V at 10 mA cm -2 in the overall urea electrolytic process. Notably, the overall urine electrolysis performance of the catalyst in the human urine medium can reach 1.40 V at 10 mA cm -2 and can exhibit durable cycle stability at 100 mA cm -2 . Density functional theory (DFT) proves that the CoSeP/CoP interface catalyst can better adsorb and stabilize reaction intermediates CO* and NH* on its surface through a strong synergistic effect, thus enhancing the catalytic activity.
Keyphrases
- reduced graphene oxide
- room temperature
- density functional theory
- visible light
- metal organic framework
- ionic liquid
- highly efficient
- gold nanoparticles
- carbon dioxide
- molecular dynamics
- endothelial cells
- single cell
- electron transfer
- human health
- molecular docking
- pluripotent stem cells
- molecularly imprinted
- high resolution
- heavy metals
- oxide nanoparticles