Metal nitride materials for solar-thermal ammonia production [Slides]
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Arizona State Univ., Tempe, AZ (United States)
Solar Thermal Ammonia Production has the potential to synthesize ammonia in a green, renewable process that can greatly reduce the carbon footprint left by the conventional Haber-Bosch reaction. Co3Mo3N has been identified as a potential candidate for ammonia production. It is synthesized via oxide precursor synthesis followed by nitridation under 10% H2/N2. The synthesis method can be extended to other candidate nitrides. The Co3Mo3N → Co6Mo6N reduction is demonstrated on TGA with rapid kinetics. The formation of NH3 is qualitatively observed, but not quantitatively determined. The material retains crystal structure, but no secondary phases are observed in XRD. Partial re-nitridation back to CMN331 of ~35% of max nitridation is observed. Reaction parameters in TGA differ from experimental conditions in the literature. Experiments at Georgia Tech better mimic re-nitridation conditions with more sensitive, quantitative analytical techniques (GC-MS). The ASU NH3 synthesis/re-nitridation reactor is under development and will permit experiments (reduction/re-nitridation) under precisely controlled T, pH2.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- NA0003525
- OSTI ID:
- 1890870
- Report Number(s):
- SAND2021-12150C; 700542
- Country of Publication:
- United States
- Language:
- English
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