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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received October 10, 2024
Revised December 14, 2024
Accepted January 1, 2025
Available online October 25, 2025
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Most Cited

Structural Characterization of (Epoxycyclopentane + Methane) and (Epoxycyclopentane + Hydrogen) Clathrate Hydrates

Department of Integrative Engineering for Hydrogen Safety , Kangwon National University 1Research Institute for Earth Resources , Kangwon National University 2Department of Energy and Resources Engineering , Kangwon National University
minjun.cha@kangwon.ac.kr, changhyup@kangwon.ac.kr
Korean Journal of Chemical Engineering, October 2025, 42(12), 2873-2878(6)
https://doi.org/10.1007/s11814-025-00379-3

Abstract

This paper determined experimentally the crystal structures of (epoxycyclopentane + methane) and (epoxycyclopentane

+ hydrogen) clathrate hydrates. Using Rietveld analysis with direct space method, the crystal structure of these clathrate

hydrate systems was identifi ed as the cubic structure II (sII) clathrate hydrate, meaning the Fd-3m space group. With the

inclusion of methane or hydrogen in the small cage of sII hydrate, there was no signifi cant change in the lattice parameters.

The microstructural analysis showed that all guest molecules were located at the center of sII hydrate cages. The structural

characterization of (epoxycyclopentane + methane) and (epoxycyclopentane + hydrogen) clathrate hydrates contributed the

understanding of unique nature of host–guest inclusion compounds and gave useful insights to develop the effi cient CH 4 or

H 2 gas storage technologies using clathrate hydrates.

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