Boronium-Ion Ionic Liquids for CO2 Capture and Solubility
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Solution Overview
Problem
Current ionic liquids used for CO2 separation often rely on volatile reagents and have limitations in terms of optimized properties for this purpose, and there is a need for ionic liquids with low melting points and excellent solubility in organic solvents for electrical storage devices.
Innovation Solution
The development of boronium-based ionic liquids with a boronium ion structure, which allows for the creation of stable, hydrophobic, room-temperature ionic liquids with unique electronic and spectroscopic characteristics, enabling efficient CO2 capture and use in non-aqueous electrolyte solutions for electrical storage devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional ionic liquids are used for CO2 separation, then CO2 capture can be achieved, but the ionic liquids have high melting points and poor solubility in organic solvents
Solution Approach 1:
The patent changes the chemical parameters of ionic liquids by introducing boronium cations with specific structures (e.g., [X2BY4−2]+ where X is a Lewis base and Y is a substituent) and pairing them with appropriate anions (Z−). This parameter modification results in ionic liquids with melting points below room temperature and improved solubility in organic solvents while maintaining CO2 capture capability.
2Productivity
If conventional ionic liquids are used for CO2 separation, then CO2 capture can be achieved, but the ionic liquids have limited solubility in organic solvents
Solution Approach 1:
The patent modifies the chemical structure parameters of ionic liquids by using boronium cations with adjustable substituents (Y groups) and different Lewis bases (X groups). These structural parameter changes enhance the compatibility with organic solvents, improving solubility while preserving the CO2 capture function.
3Ease of manufacture
If volatile reagents are used in ionic liquids for CO2 separation, then the ionic liquids can be synthesized, but the volatility creates environmental contamination and safety issues
Solution Approach 1:
The patent extracts and eliminates the volatile reagent component from the ionic liquid system by using non-volatile boronium cations and stable anions. This extraction of the harmful volatile element allows the ionic liquid to maintain ease of manufacture through alternative non-volatile synthesis routes while eliminating vapor pressure and environmental contamination issues.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
These boronium ionic liquids provide improved CO2 capture efficiency and solubility in organic solvents, facilitating effective gas processing and electrical storage applications with enhanced properties such as low melting points and high solubility.
Implementation Method 1
These boronium ionic liquids provide improved CO2 capture efficiency
Data Source
AI summary
One aspect of the present invention relates to “boronium” ions that are stable, hydrophobic, room-temperature ionic liquids. In certain embodiments, ionic liquids of the instant invention are represented by the formula [XnBY4−n]+(n−1)(n−1)Z−1, wherein X refers to a Lewis base, Y refers to a substituent covalently bonded to boron, Z−1 is a charge diffuse anion, and x is 2, 3 or 4. In certain embodiments, the ionic liquids of the instant invention are of the general type [X2BY2]+1Tf2N−1, wherein each X is independently a tertiary amine, a N-alkylimidazole or a pyridine; and each B—X bond is a B—N bond.