Joule-Heated Interfacial Catalysis for Advanced Electrified Esterification with High Conversion and Energy...

Area of Science:

• Chemical Engineering
• Catalysis
• Materials Science

Background:

• Esterification reactions are vital in chemical, fragrance, and pharmaceutical industries.
• Traditional methods suffer from low yields due to high reversibility and reactivity issues.

Purpose of the Study:

• To develop an efficient and sustainable electrified esterification pathway.
• To overcome equilibrium limitations and enhance reaction yields.

Main Methods:

• Utilized a Joule-heated interfacial catalysis (JIC) system.
• Employed a sulfonic acid-functionalized covalent organic framework on carbon felt (COF─SO3H@CF) as the catalyst.
• Carbon felt served as the localized electric heat source.

Main Results:

• Achieved 80.5% acetic acid conversion, exceeding the theoretical equilibrium limit (62.5%) by 1.29 times.
• Demonstrated efficient, localized Joule heating at catalytic sites via intimate contact between catalyst and heat source.
• Minimized thermal losses and enabled precise control over reaction interfaces.

Conclusions:

• The JIC system significantly enhances esterification efficiency.
• This electrified pathway offers a sustainable and energy-efficient route for high-yield chemical processes.
• The findings suggest broader applicability for JIC in industrial synthesis.