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Challenges and opportunities for the photo-(thermal) synthesis of ammonia

Green Chemistry, ISSN: 1463-9270, Vol: 26, Issue: 3, Page: 1041-1061
2023
  • 12
    Citations
  • 0
    Usage
  • 20
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    20

Review Description

For more than one century, the synthesis of ammonia (NH) through the Haber-Bosch route has allowed the industrial-scale production of fertilizers and other nitrogen-containing compounds. Despite its success, the development of alternative NH synthesis methods with a lower CO footprint is highly desirable. In this context, the use of sunlight as source of energy to perform the photo-catalytic nitrogen (N) reduction reaction represents a promising approach, although the reported efficiencies remain below those required to compete with the traditional HB route. To overcome these limitations, photo-thermal catalysis offers the opportunity to synergistically combine the effect of photo-induced charge carriers and localized heat to perform the synthesis of ammonia. In this review, we first provide an overview of the most recent advances in thermo- and photo-catalytic NH production. Next, we describe the merits of photo-thermal catalysis to enhance the catalytic activity towards NH synthesis. To conclude, we share our viewpoint on the future prospects and challenges ahead for photo-thermal catalysis to become a reality in the production of NH and other industrially relevant chemicals.

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