Interpretable machine learning for materials discovery: Predicting CO2 adsorption properties of metal–organic frameworks
Problem
Screening millions of hypothetical metal–organic frameworks to find ones with high CO2 adsorption capacity is computationally expensive.
Why it matters
Identifying high-capacity CO2 adsorbents is key to carbon capture at industrial scale.
What the AI did
Machine learning combined with molecular simulations was trained on a hypothetical MOF dataset using 23 structural and 765 calculated features to predict CO2 adsorption at different pressures, with feature-importance ranking for interpretability.
Results
Calculated features improved ML prediction accuracy by 15%–20%; pore size and molecular structure ranked most critical at all pressures.
Impact
Enables faster ML-guided screening of millions of MOF structures for CO2 capture candidates.
Record
| Venue | APL Materials |
|---|---|
| Published | 2024 |
| Work type | article |
| Authors | Yukun Teng, Guangcun Shan |
| Citations | 28 (OpenAlex, at import time) |
| References | 53 |
| Model or method | not stated in source |
| Organization | not stated in source |
| Primary source | https://doi.org/10.1063/5.0222154 |
| Open access | gold |
| Keywords | metal-organic frameworks, CO2 adsorption, machine learning, interpretability, materials discovery |
Importance rating
significant — thousands to millions affected
ML-guided screening of millions of MOFs for high-capacity CO2 adsorbents supports carbon capture at industrial scale; 15-20% accuracy gain and interpretable features, but impact on capture deployment not yet shown.
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