1-Butyl-1-methylpyrrolidinium tetrafluoroborate, CAS: 345984-11-4

Key Applications:

Electrochemical Systems

• Serves as a stable ionic liquid electrolyte component for supercapacitors, electrochemical capacitors, and advanced energy‑storage devices.
• Supports wide electrochemical windows and low volatility, enabling high‑performance operation under demanding conditions.
• Useful as a supporting electrolyte in voltammetric studies, electrodeposition research, and ionic‑liquid‑based redox systems.

Battery and Energy‑Storage Research

• Employed in lithium‑free and lithium‑salt‑containing electrolyte formulations where BF₄⁻ anions provide favorable conductivity and thermal stability.
• Investigated in prototype electrolytes for next‑generation batteries, including dual‑ion and hybrid‑ion systems.

Catalysis and Synthesis

• Functions as a non‑volatile, thermally robust reaction medium for organic transformations requiring controlled ionic environments.
• Applied in phase‑transfer‑like roles where ionic liquids enhance reaction rates, selectivity, or catalyst recyclability.

Materials Science and Thin‑Film Processing

• Utilized in the preparation of ionic‑liquid‑modified polymers, membranes, and composite materials to tune conductivity, mechanical properties, and ion transport.
• Supports electrodeposition of metals and alloys under water‑free conditions, improving film uniformity and morphology.

Separation Science

• Acts as a tunable solvent for extraction of metal ions, organic compounds, and polar analytes, particularly in systems requiring low vapor pressure and high thermal stability.
• Integrated into supported ionic‑liquid membranes (SILMs) for selective gas or solute transport.

Analytical Chemistry

• Serves as a medium for electroanalytical measurements where high ionic strength and chemical inertness are required.
• Used in sample preparation workflows, including ionic‑liquid‑assisted extraction and preconcentration.

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