Direct observation of pressure-induced amorphization of methane/ethane hydrates using Raman and infrared spectroscopy

Author:

Noguchi Naoki1ORCID,Shiraishi Yui1,Kageyama Maho1,Yokoi Yuu1,Kurohama Saki1,Okada Natsuki1,Okamura Hidekazu1

Affiliation:

1. Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minami-josanjima-cho, Tokushima 770-8506, Japan

Abstract

Methane hydrate (MH) underwent pressure-induced amorphization (PIA) at 2–3.5 GPa, whereas ethane hydrate (EH) underwent PIA at 4.0–5.5 GPa. The structures of amorphous MH and EH are proposed based on the Raman and IR spectra.

Funder

Japan Society for the Promotion of Science

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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