Building Open Knowledge Graph for Metal-Organic Frameworks (MOF-KG): Challenges and Case Studies

TL;DR

This paper discusses the development of a knowledge graph for Metal-Organic Frameworks (MOFs) to aid in their prediction, discovery, and synthesis, addressing challenges in constructing and utilizing such a graph.

Contribution

It introduces the creation of a MOF knowledge graph from diverse sources and explores its application in discovering new MOF knowledge.

Findings

Constructed a MOF knowledge graph from structured and unstructured data.

Demonstrated case studies for MOF discovery using the knowledge graph.

Identified key challenges in building and applying the MOF-KG.

Abstract

Metal-Organic Frameworks (MOFs) are a class of modular, porous crystalline materials that have great potential to revolutionize applications such as gas storage, molecular separations, chemical sensing, catalysis, and drug delivery. The Cambridge Structural Database (CSD) reports 10,636 synthesized MOF crystals which in addition contains ca. 114,373 MOF-like structures. The sheer number of synthesized (plus potentially synthesizable) MOF structures requires researchers pursue computational techniques to screen and isolate MOF candidates. In this demo paper, we describe our effort on leveraging knowledge graph methods to facilitate MOF prediction, discovery, and synthesis. We present challenges and case studies about (1) construction of a MOF knowledge graph (MOF-KG) from structured and unstructured sources and (2) leveraging the MOF-KG for discovery of new or missing knowledge.