Harnessing the power of nano-adsorbents for sustainable ammonia economy

Bing-zhi Yuan and Li-wei Wang

Renewable and Sustainable Energy Reviews, 2025, vol. 217, issue C

Abstract: Ammonia (NH3) is a promising candidate in the energy revolution. However, its production involves energy-intensive NH3 separation, and its application faces challenges due to leakage risks, storage pressure and toxicity. Adsorption science can address these challenges towards a more sustainable ammonia economy. Specially designed nano-adsorbents can efficiently separate or capture NH3, reducing energy consumption in production processes. Utilizing nano-adsorbents for NH3 storage enables significant vapor pressure reduction, allowing efficient and safe storage in public infrastructures. The synergistic integration of adsorption-desorption processes with a comprehensive energy utilization strategy unlocks the potential of refrigeration, heat pumps, and energy storage in the ammonia economy, thereby fostering a sustainable and efficient energy system. In this Review, we survey the adsorption mechanisms and design strategies of emerging NH3 nano-adsorbents, and propose general principles for NH3 adsorbent design. We envision future applications of adsorption-assisted ammonia energy system and investigate the implementation guidelines for these design strategies in different application scenarios.

Keywords: Adsorption science; Ammonia adsorption; Energy storage and utilization system; Sustainable ammonia economy (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.rser.2025.115718

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