在上使用动态单原子催化剂 克服缩放关系限制:AIMD对CO2降解和进化反应的选
Mohsen Tamtaji1, William A Goddard2, Ziyang Hu1
1Hong Kong Quantum AI Lab Limited, Pak Shek Kok, Hong Kong SAR 999077, China.
JACS Au
|September 26, 2025
概括
的动态单原子催化剂 (SAC) 对的进化和二氧化碳减排反应有希望,克服了静态SAC的局限性. 这些先进的催化剂为电化学应用提供了更高的效率和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 电化学 电化学 电化学
背景情况:
- 静态单原子催化剂 (SAC) 在电化学反应中面临缩放关系限制.
- 开发先进的催化剂对于高效的进化 (HER) 和二氧化碳减排 (CO2RR) 是至关重要的.
研究的目的:
- 引入和研究支持 (M-SAC@Ga) 的动态单原子催化剂 (SAC),用于HER和CO2RR.
- 选s,p,d和f块元件,以寻找稳定和高效的动态SAC.
主要方法:
- 使用密度函数理论 (DFT) 和Ab Initio分子动力学 (AIMD) 计算进行高通量选.
- 系统评估M-SAC@Ga系统的热力学和电化学稳定性.
主要成果:
- 确定了稳定动态SACs,包括Re-, Pt-, Pd-, Rh-, Ir-, Au-, Ag-, Ru-, Tc-, Ni-, Cu-, Os-, Hg-和Ge-SAC@Ga. 这些都是稳定的动态SACs,包括Re-, Pt-, Pd-, Rh-, Ir-, Au-, Ag-, Ru-, Tc-, Ni-, Cu-, Os-, 和Ge-SAC@Ga.
- Ni-SAC@Ga显示了CO2RR的低过量潜力,产生CHOOH,CO,CH3OH和CH4.4.
- 动态协调变化和原子智能是缓解扩展限制的关键.
结论:
- 对的动态SAC提供了一个有希望的策略,以克服静态SAC的局限性.
- 这项研究为设计下一代电催化剂提供了洞察力.
- D电子计数成为催化剂性能的通用描述符.
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