1-Butyl-3-methylimidazolium tetrafluoroborate, CAS: 174501-65-6

Key Applications:

Electrochemical Systems

• Utilized as a stable, non‑volatile electrolyte component for supercapacitors, lithium‑free batteries, and redox‑flow systems.
• Supports wide electrochemical windows suitable for high‑voltage device architectures.
• Enables electrodeposition of metals and semiconductors under moisture‑sensitive or elevated‑temperature conditions.

Catalysis and Organic Synthesis

• Serves as a tunable reaction medium for acid‑catalyzed, transition‑metal‑catalyzed, and biocatalytic transformations.
• Enhances selectivity and yields in alkylation, oxidation, and coupling reactions due to its polarity and thermal stability.
• Functions as a recyclable solvent in green‑chemistry workflows.

Separation Science and Extraction

• Applied in liquid–liquid extraction of metal ions, aromatic hydrocarbons, and biomass‑derived compounds.
• Supports CO₂ capture and gas‑separation studies through favorable solvation characteristics.
• Used as an ionic‑liquid additive in chromatographic method development to improve peak shape and analyte resolution.

Materials Science and Polymer Engineering

• Incorporated into polymer matrices to adjust conductivity, mechanical flexibility, and thermal behavior.
• Enables fabrication of ionogels, membranes, and hybrid materials for sensors and flexible electronics.
• Acts as a plasticizer or ionic dopant in specialty polymer systems.

Nanomaterials and Surface Engineering

• Provides a controlled environment for synthesizing nanoparticles, nanowires, and carbon‑based nanostructures.
• Stabilizes colloidal dispersions and supports templated growth of functional nanomaterials.

Green Chemistry and Process Intensification

• Used as a non‑volatile, recyclable solvent alternative in sustainable process design.
• Supports intensified reaction conditions without solvent loss or decomposition.

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