Elucidate the reaction route of carbon dioxide in super critical water

The first principle Marcov state model elucidates the complex reaction speed theory of CO2 in the superractable water. Credit: Professor Chu Li, Jie Shu, Ding Pan
The research team has made important discoveries about the complex reaction mechanism of carbon dioxide (CO₂) in super -critical water. These discoveries are important to understand the mining mine of CO2 in nature and engineering, as well as the deep carbon circulation inside the earth. This understanding will help you open the way in a new direction of future carbon isolation technology. This study was published in the American Science Academy.
The dissolution of CO2 into water and subsequent hydrolysis reactions are important processes for effective carbon collection and mining storage, and play an important role in carbon isolation to alleviate global warming. 。 Professor Pan’s team has developed and applied the first principle of Marcov model to clarify the reaction mechanism of CO2 and super critical water in both the bulk environment and the nano confinement environment.
They discovered that the pillow carbonate (C2O52-) was a stable and important reaction intermediate in the nano confinement environment. The pillow carbonate was very unstable, and it has been overlooked so far to break down in an aqueous solution. An unexpected appearance of pillow carbonate is related to the ultra -ionic behavior of the trapped solution.
Furthermore, they are involved in the carbonated reactions with a collective proton movement along the temporary water chain, indicating coordination in bulk solutions, but progresses gradually under the nano confinement. I found that. This study demonstrates the great potential of the first principle of Markov model in the elucidation of complex reaction speed theory in aqueous solution.
“Our innovative approach has discovered a new route for CO2 dissolving, which involves pillow carbonated ions,” said Professor Chu Li, a research assistant professor in the Department of Physical Department.
“Our efficient calculation methods do not depend on prior knowledge, automatically identify the reaction route without human prejudice, and clarify the unknown reaction mechanism based on the first principle of physics. “
Professor Din Pan further said, “Our method is to adopt a teaching technology without teachers, clarify the importance of large ox carbon in the water reaction under extreme conditions, and the nano confinement control controls the chemical process. It is expected that these discoveries can be a new direction. ” For future carbon isolation technology. “
The study was led by the Hong Kong Science University (HKUST) physics and chemical associate professor in the Department of Mathematics in cooperation with Professor Yuan Yao.
Detailed information: CHU LI et al, elucidated the hidden reaction speed theory of carbon dioxide in a super -critical aqueous solution, the US Academy of Science (2024). Doi: 10.1073/pnas.2406356121
Provided by Hong Kong Science University
Quotation: The reaction route of carbon dioxide in super critical water is clear (January 24, 2025) https://phys.org/news/2025-01-reaction-pathways-carbon-dioxyde-supercritical.html from 2025 Acquired on January 25
This document is subject to copyright. Except for fair transactions for personal research and research, any part cannot be duplicated without writing permission. Content is provided only for information provision.