ArticleThe journal of physical chemistry letters2025
Room-Temperature Decomposition of the Ethaline Deep Eutectic Solvent.
Article in The journal of physical chemistry letters, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Thermodynamic effects of solid electrolyte interphase formation from solvation and ionic association in water-in-salt electrolytes.Faraday discussions · 2026Article
- From Oilseed Waste to High-Value Bioactives: Deep Eutectic Solvents as Sustainable Refining Media.International journal of molecular sciences · 2026Review
- Domain oriented universal machine learning potential enables fast exploration of chemical space of battery electrolytes.Nature communications · 2025Article
- Theory of Cation Solvation in the Helmholtz Layer of Li-Ion Battery Electrolytes.ACS applied energy materials · 2025Article
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Authors and funding
8 authors.
Funding
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Abstract
Environmentally benign, nontoxic electrolytes with combinatorial design spaces are excellent candidates for green solvents, green leaching agents, and carbon capture sources. We examine ethaline, a 2:1 molar ratio of ethylene glycol and choline chloride. Despite its touted green credentials, we find partial decomposition of ethaline into toxic chloromethane and dimethylaminoethanol at room temperature, limiting its sustainable advantage. We experimentally characterize these decomposition products and computationally develop a general, quantum-chemically accurate workflow to understand its decomposition. We find that fluctuations in the hydrogen bonds bind chloride near reaction sites, initiating the reaction between choline cations and chloride anions. The strong hydrogen bonds formed in ethaline are resistant to thermal perturbations, entrapping Cl in high-energy states and promoting the uphill reaction. In the design of stable green solvents, we recommend detailed evaluation of the hydrogen-bonding potential energy landscape as a key consideration for generating stable solvent mixtures.
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Registered trials
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