Synthesis of edge-enriched WS2 on high surface area WS2 framework by atomic layer deposition for electrocatalytic hydrogen evolution reaction
| Autor: | Yue Zhang, Jan P. Hofmann, Wilhelmus M. M. Kessels, Shashank Balasubramanyam, Matthew A. Bloodgood, Marcel A. Verheijen, Ageeth A. Bol |
|---|---|
| Přispěvatelé: | Plasma & Materials Processing, Inorganic Materials & Catalysis, Processing of low-dimensional nanomaterials, Atomic scale processing, EIRES |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology Surfaces and Interfaces Edge (geometry) 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrocatalyst 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Atomic layer deposition Template Chemical engineering Transition metal High surface area Hydrogen evolution 0210 nano-technology Material properties |
| Zdroj: | Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, 38(6):062201. AVS Science and Technology Society Journal of Vacuum Science & Technology A |
| ISSN: | 0734-2101 |
| Popis: | Transition metal dichalcogenides (TMDs) are promising electrocatalysts for the hydrogen evolution reaction (HER). Several approaches have been adopted to increase the density of the catalytically active edge-sites of TMDs including the use of high surface area 3D templates. In this work, we report the implementation of a high surface area WS2 framework grown using plasma-enhanced atomic layer deposition (PEALD) as templates to support edge-enriched PEALD grown WS2 electrocatalyst films. We show that these combined WS2 template-electrocatalyst configurations show better HER performance than the individual constituents. Material properties of the combined configurations including morphology and composition are investigated. A correlation between material properties and the HER performance is observed. This facile pathway could lead to a new route for creating high surface area electrocatalyst systems via PEALD. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|