| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials: Preparation, Properties, Modeling & Applications
|
| Presentation Title |
Phase-aligned Growth of Nickel Phosphosulfide Nanostructured Arrays: A Promising Electrocatalyst for Efficient Hydrogen Evolution Reaction |
| Author(s) |
Navid Attarzadeh, Debabrata Das, Balwant K Singh, Susheng Tan, CV Ramana |
| On-Site Speaker (Planned) |
Navid Attarzadeh |
| Abstract Scope |
The design and development of cost-efficient electrocatalysts with high durability and high catalytic activity for electrolyzing water to produce hydrogen is desirable to meet the ever-increasing demand for energy. Herein, we report the preparation and assessment of high-performance hydrogen evolution reaction (HER) electrocatalysts based on the sulfidation of nickel phosphide nanostructures. The ternary nanostructure of nickel phosphosulfide exhibits a remarkable performance compared to nickel phosphide catalysts. The prepared catalysts demonstrate notably low overpotentials compared to the current commercial Pt group catalysts, while the stability and durability in acidic solutions are significant. The results confirm that the synergic presence of S and P can optimize the electronic properties and yield nanostructures with highly intrinsic catalytic activities. It is realized that implementing the sulfidation process not only boosts the durability by increasing the oxidation resistivity but also increases the exchangeability of protons at active sites. The results will be presented and discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Copper / Nickel / Cobalt, Environmental Effects |