Pt5Se4 Monolayer: A Highly Efficient Electrocatalyst toward Hydrogen and Oxygen Electrode Reactions
| Autor: | Wei Zhang, Xiangshui Miao, Jun-Hui Yuan, Chundong Wang, Li Heng Li, Kan-Hao Xue, Xiao Cheng Zeng, Jiafu Wang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Hydrogen Oxygen evolution chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences 0104 chemical sciences Catalysis law.invention chemistry Chemical engineering law Monolayer Electrode General Materials Science Solvent effects 0210 nano-technology Clark electrode |
| Zdroj: | ACS Applied Materials & Interfaces. 12:13896-13903 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.9b22674 |
| Popis: | Electrocatalysts with high activities toward multiple electrode reactions are scarce and therefore highly sought. Here, we investigate the electrocatalytic performance of the two-dimensional (2D) Pt5Se4 monolayer toward hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). Our density functional theory calculations show that the Pt5Se4 monolayer can serve as a low-Pt-loading trifunctional electrocatalyst with good kinetic and thermal stabilities. Specifically, the HER performance of the Pt5Se4 basal plane is predicted to be superior to that of 2D layered Pd or Pt dichalcogenides. Even considering the solvent effect, the catalytic OER performance of the Pt5Se4 monolayer is predicted to be comparable to the prevalent OER catalyst-IrO2, while the catalytic ORR performance of the Pt5Se4 monolayer is even higher than the predominating Pt(111) surface. Overall, the Pt5Se4 monolayer can be a promising trifunctional catalyst that exhibits high activities toward all hydrogen and oxygen electrode reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|