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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...

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Related Experiment Video

Updated: Jun 10, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

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Published on: October 10, 2013

Hydrogen storage in metal-organic frameworks.

Yun Hang Hu¹, Lei Zhang

¹Department of Materials Science and Engineering, Michigan Technological University, Houghton, 49931-1295, USA. yunhangh@mtu.edu

Advanced Materials (Deerfield Beach, Fla.)

|July 20, 2010

Summary

Metal-organic frameworks (MOFs) offer high surface areas for hydrogen storage. This review explores MOF structures, surface area, and pore size effects on hydrogen capacity, and discusses interaction mechanisms and challenges for ambient temperature storage.

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Area of Science:

Materials Science
Chemical Engineering
Energy Storage

Background:

Metal-organic frameworks (MOFs) are advanced porous materials.
MOFs possess high surface areas, tunable structures, and facile synthesis.
They are promising for hydrogen energy applications, especially storage.

Purpose of the Study:

To review recent advancements in hydrogen storage using MOFs.
To analyze the correlation between MOF structural properties and hydrogen storage capacity.
To discuss the underlying interaction mechanisms and current challenges.

Main Methods:

Literature review of recent research on MOFs for hydrogen storage.
Evaluation of structure-property relationships, focusing on surface area and pore size.
Analysis of H(2)-MOF interaction mechanisms.

Main Results:

MOF structure, surface area, and pore size significantly influence hydrogen storage capacity.
Understanding H(2)-MOF interactions is crucial for optimizing storage.
High hydrogen capacity at ambient temperature remains a key challenge.

Conclusions:

MOFs show great potential for efficient hydrogen storage.
Further research is needed to overcome challenges for practical applications.
Tailoring MOF design is essential for advancing hydrogen energy technologies.