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  3. Realizing Efficient Ammonia Electrosynthesis Enabled By Metal-organic Framework-derived Cuco-ldh.
  1. Home
  3. Realizing Efficient Ammonia Electrosynthesis Enabled By Metal-organic Framework-derived Cuco-ldh.

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Realizing efficient ammonia electrosynthesis enabled by metal-organic framework-derived CuCo-LDH.

Wenjie Liu1, Lei-Lei Qian1, Yi-Min Wang1

  • 1School of Life Sciences and Chemical Engineering, Jiangsu Second Normal University, Nanjing 211200, China. qianleilei0908@jssnu.edu.cn.

Physical Chemistry Chemical Physics : PCCP
|May 27, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

This study presents a novel electrocatalytic method for converting nitrate into ammonia, simultaneously treating wastewater and producing valuable ammonia. The developed copper-cobalt catalyst demonstrates high efficiency and stability for this dual-purpose application.

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Environmental Chemistry

Background:

  • Nitrate pollution is a significant environmental concern.
  • Ammonia synthesis is crucial for agriculture and industry.
  • Simultaneous wastewater treatment and ammonia production is highly desirable.

Purpose of the Study:

  • To develop an efficient electrocatalyst for nitrate reduction to ammonia.
  • To investigate the mechanism of nitrate reduction using bimetallic hydroxides.
  • To integrate the process for practical ammonia production and wastewater remediation.

Main Methods:

  • Synthesis of CuCo layered bimetallic hydroxides using ZIF-67 as a template.
  • Electrocatalytic reduction of nitrate under optimized conditions.
  • Characterization of the catalyst's structure and performance.
  • Integration with an electrolysis-absorption unit for ammonia recovery.

    • Main Results:

    • Achieved an ammonia yield of 7.27 mg h-1 cm-2.
    • Obtained a high Faraday efficiency of 86.2% for ammonia production.
    • Demonstrated stable operation for 120 hours.
    • Successfully converted nitrate to high-purity ammonium sulfate.

    Conclusions:

    • CuCo layered bimetallic hydroxides are effective electrocatalysts for nitrate reduction to ammonia.
    • The developed system offers a sustainable strategy for wastewater treatment and ammonia valorization.
    • Integration of electrolysis and absorption provides a pathway for high-purity ammonia production.