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Efficient Self-Driven Adipic Acid Production with Bioelectricity Generation.

Yifan Bu1, Chao Li2, Ziliang Deng3

  • 1College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

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|May 1, 2026
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Summary
This summary is machine-generated.

This study introduces a novel phthalocyanine catalyst for efficient cyclohexanone oxidation and oxygen reduction, achieving high turnover frequency and electron efficiency for sustainable adipic acid production. The self-driven system integrates energy generation and chemical synthesis, reducing CO2 emissions.

Keywords:
adipic acid productioncyclohexanone oxidationnear-ambient pressure XPSoxygen reduction reactionself-driven chemical synthesissingle-atom catalysis

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Area of Science:

  • Electrocatalysis and Sustainable Chemistry
  • Materials Science and Nanotechnology

Background:

  • Electrocatalysis is crucial for sustainable chemical production but faces limitations in turnover frequency (TOF) and electron efficiency (EE).
  • Existing methods for producing value-added chemicals like adipic acid often have significant environmental impacts.

Purpose of the Study:

  • To develop a highly efficient and sustainable electrocatalytic system for adipic acid production.
  • To investigate a promotion effect in molecular phthalocyanine catalysts for synergistic oxygen reduction reaction (ORR) and cyclohexanone oxidation (CyO).
  • To establish a self-driven system coupling chemical synthesis with bioelectricity generation.

Main Methods:

  • Utilized molecular phthalocyanine catalysts exhibiting a promotion effect for ORR and CyO.
  • Employed near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) to elucidate reaction mechanisms.
  • Integrated the catalytic system into microbial fuel cell reactors for self-driven operation.

Main Results:

  • Achieved a record TOF of 1711 h-1 and near-100% EE at 0.5 VRHE for adipic acid production.
  • Demonstrated synergistic ORR and CyO, bypassing kinetic limitations and overpotential penalties.
  • Enabled self-driven adipic acid synthesis coupled with bioelectricity generation without external power.
  • Life cycle assessment indicated a 43% reduction in CO2 emissions compared to conventional methods.

Conclusions:

  • The developed phthalocyanine catalyst and self-driven system offer a highly efficient and sustainable route for adipic acid synthesis.
  • The study establishes a new paradigm for integrating energy generation with chemical synthesis for industrial applications.
  • This approach significantly reduces environmental impact, offering a greener alternative for chemical manufacturing.