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arxiv_ml 90% Match Research Paper Materials scientists,Computational chemists,ML researchers in scientific domains 19 hours ago

COFAP: A Universal Framework for COFs Adsorption Prediction through Designed Multi-Modal Extraction and Cross-Modal Synergy

graph-neural-networks › molecular-modeling
📄 Abstract

Abstract: Covalent organic frameworks (COFs) are promising adsorbents for gas adsorption and separation, while identifying the optimal structures among their vast design space requires efficient high-throughput screening. Conventional machine-learning predictors rely heavily on specific gas-related features. However, these features are time-consuming and limit scalability, leading to inefficiency and labor-intensive processes. Herein, a universal COFs adsorption prediction framework (COFAP) is proposed, which can extract multi-modal structural and chemical features through deep learning, and fuse these complementary features via cross-modal attention mechanism. Without Henry coefficients or adsorption heat, COFAP sets a new SOTA by outperforming previous approaches on hypoCOFs dataset. Based on COFAP, we also found that high-performing COFs for separation concentrate within a narrow range of pore size and surface area. A weight-adjustable prioritization scheme is also developed to enable flexible, application-specific ranking of candidate COFs for researchers. Superior efficiency and accuracy render COFAP directly deployable in crystalline porous materials.

Key Contributions

Introduces COFAP, a universal framework for COF adsorption prediction using designed multi-modal extraction and cross-modal synergy. It extracts and fuses structural and chemical features via deep learning and cross-modal attention, achieving SOTA performance without relying on gas-specific features, thus enabling efficient high-throughput screening.

Business Value

Accelerates the discovery and design of novel COFs for gas adsorption and separation applications, leading to more efficient industrial processes and new materials for environmental or energy solutions.