机器学习加速发现地球丰富的双金属电催化剂,用于进化反应
Ismail Can Oguz1, Nabil Khossossi1, Marco Brunacci1
1DIFFER - Dutch Institute for Fundamental Energy Research, De Zaale 20, Eindhoven 5612 AJ, The Netherlands.
ACS catalysis
|November 27, 2025
概括
科学家们开发了一种机器学习引导的方法,以发现进化反应 (HER) 的新催化剂. 这种方法可以有效地识别具有成本效益的,土壤丰富的双金属合金,具有与类似的性能.
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.
- 计算化学计算化学
背景情况:
- 是演化反应 (HER) 的高效催化剂,但其稀缺性和高成本限制了实际应用.
- 开发地球上丰富的双金属合金作为替代品是具有挑战性的,因为大量的可能的组合.
研究的目的:
- 创建一个高效的机器学习 (ML) -密度功能理论 (DFT) 工作流程,以发现和优先考虑新型双金属HER催化剂.
- 为 HER. 确定成本效益和高性能替代的替代品.
主要方法:
- 将EquiformerV2集成到AdsorbML代理-DFT管道中,以快速预测吸附能量.
- 应用萨巴蒂埃火山过和有针对性的DFT验证来选数千种合金表面.
- 考虑活动,稳定性和成本的多目标评估.
主要成果:
- 在ML-DFT工作流中,预测吸附能量的平均绝对误差为0.12 eV.
- 确定了两个关键的表面图案:Sn/Sb丰富层中的过渡金属二次体/隔离点,以及具有特定Cu-Cu位点的Cu丰富表面.
- 四个有前途的候选物 (Fe2Sb4,Cu6Sb2,Cu6Sn2,Ni2Sb2) 因其潜在的白金般的HER性能和较低的成本而被强调.
结论:
- 开发的ML-DFT策略有效地导航复杂的化学空间,以发现催化剂.
- 这种方法为开发负担得起和高效的地球丰富的HER催化剂提供了简化的路线图.
- 已确定的双金属合金为实现可持续气生产提供了可行的途径.
更多相关视频
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
4.1K
06:39Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
Published on: October 20, 2023
3.7K
相关概念视频
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.8K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.8K
02:50Catalysis
30.0K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
30.0K