Related Experiment Video
Updated: May 24, 2026
09:46
Protocol for Measuring the Thermal Properties of a Supercooled Synthetic Sand-water-gas-methane Hydrate Sample
Published on: March 21, 2016
Atomic hydrogen production from semi-clathrate hydrates
Dong-Yeun Koh1, Hyery Kang, Juwoon Park
1Department of Chemical and Biomolecular Engineering and the Graduate School of EEWS (WCU), Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, Republic of Korea.
Journal of the American Chemical Society
|March 20, 2012
Summary
This study introduces an efficient method for generating atomic hydrogen using semi-clathrate hydrates. This advancement holds promise for applications in energy devices and artificial photosynthesis.
Area of Science:
- Materials Science
- Chemical Engineering
- Energy Storage
Background:
- Atomic hydrogen is crucial for various advanced technologies, including energy devices, silicon-based electronics, artificial photosynthesis, and hydrogen storage.
- Current methods for producing atomic hydrogen face challenges in efficiency and scalability.
Purpose of the Study:
- To develop a highly efficient method for producing atomic hydrogen.
- To investigate the use of semi-clathrate hydrates as a novel platform for atomic hydrogen generation.
Main Methods:
- Utilizing semi-clathrate hydrates as a source for atomic hydrogen production.
- Examining two primary hydrogen radical sources derived from specific guest/host materials within the hydrates.
Main Results:
- Demonstrated a highly efficient route for atomic hydrogen production via semi-clathrate hydrates.
- Identified and analyzed key guest/host material interactions influencing hydrogen radical generation.
Conclusions:
- Semi-clathrate hydrates offer a promising and efficient pathway for generating atomic hydrogen.
- The findings support the potential of this method for various technological applications, including energy and catalysis.
Related Concept Videos
01:20Aldehydes and Ketones with Water: Hydrate Formation
An oxygen-based nucleophile, like water, can undergo addition reactions with aldehydes and ketones. The reaction leads to the formation of hydrates, also referred to as 1,1-diols or geminal diols.
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...
02:40Alkynes to Aldehydes and Ketones: Acid-Catalyzed Hydration
Introduction
Analogous to alkenes, alkynes also undergo acid-catalyzed hydration. While the addition of water to an alkene gives an alcohol, hydration of alkynes produces different products such as aldehydes and ketones.
Analogous to alkenes, alkynes also undergo acid-catalyzed hydration. While the addition of water to an alkene gives an alcohol, hydration of alkynes produces different products such as aldehydes and ketones.
01:04Hydrogen Bonds
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...
00:26Hydrogen Bonds
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared.
00:54Radical Formation: Homolysis
A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
02:45Acid-Catalyzed Hydration of Alkenes
Alkenes react with water in the presence of an acid to form an alcohol. In the absence of acid, hydration of alkenes does not occur at a significant rate, and the acid is not consumed in the reaction. Therefore, alkene hydration is an acid-catalyzed reaction.