期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 50, 页码 26385-26389出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202112095
关键词
ammonia synthesis; catalysis; gas-phase reactions; mechanochemistry; room-temperature
资金
- Max-Planck-Institut fur Kohlenforschung
- Projekt DEAL
This study presents a new method for continuous ammonia production at room temperature and low pressure, achieving a breakthrough in the Haber-Bosch process. By optimizing experimental conditions, an efficient iron catalyst was successfully developed.
Ammonia synthesis via the high-temperature and high-pressure Haber-Bosch process is one of the most important chemical processes in the world. In spite of numerous attempts over the last 100 years, continuous Haber-Bosch type ammonia synthesis at room-temperature had not been possible, yet. We report the development of a mechanocatalytic system operating continuously at room-temperature and at pressures down to 1 bar. With optimized experimental conditions, a cesium-promoted iron catalyst was shown to produce ammonia at concentrations of more than 0.2 vol. % for over 50 hours.
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