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Updated: May 13, 2026

Protein Complex Affinity Capture from Cryomilled Mammalian Cells
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Molecular Crystal Sponge for Extraordinary NH3 Capture.

Xiangyu Gao1, Yijin Wang1, Wei Chen1

  • 1State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, College of Smart Materials and Future Energy, Fudan University, 2005 Songhu Road, Shanghai 200438, China.

Journal of the American Chemical Society
|May 12, 2026
PubMed
Summary

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This summary is machine-generated.

Researchers developed a novel molecular crystal adsorbent for efficient ammonia capture. This material offers superior performance in ammonia recovery, paving the way for energy-saving ammonia synthesis.

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Sustainable Chemistry

Background:

  • Ammonia production relies on the energy-intensive Haber-Bosch process.
  • Current methods require refrigeration for ammonia separation, consuming significant energy.
  • Developing efficient ammonia adsorbents is crucial for sustainable synthesis.

Purpose of the Study:

  • To engineer a novel adsorbent for efficient ammonia capture and separation.
  • To replace energy-intensive condensation methods in ammonia synthesis.
  • To develop a sustainable and practical solution for ammonia production.

Main Methods:

  • Synthesis of a soft hydrogen-bonded molecular crystal from benzene-1,2,4,5-tetracarboxylic acid.
  • Characterization using single-crystal and in situ powder X-ray diffraction (PXRD).

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  • Performance evaluation through breakthrough experiments for ammonia uptake and recovery.

    • Main Results:

    • The molecular crystal demonstrated exceptional ammonia uptake capacity (15.1 mmol g-1 at 10 mbar).
    • Ultrahigh purity ammonia recovery (≥99.9998%) was achieved under various conditions.
    • Charge-assisted hydrogen bonding mechanism driving pore expansion was elucidated.

    Conclusions:

    • The developed material offers a promising alternative to traditional ammonia separation techniques.
    • This work presents a blueprint for designing soft molecular crystals for selective gas capture.
    • The findings contribute to the advancement of energy-efficient ammonia production.