Morphology engineering-driven high-performance potassium-based CO2 adsorbents: Interface design and structure-activity relationship study

Weiming Wang

doi:10.1016/j.jece.2025.118143

Morphology engineering-driven high-performance potassium-based CO2 adsorbents: Interface design and structure-activity relationship study

2025-07-17

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DOI：10.1016/j.jece.2025.118143

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• Potassium-based sorbents with tunable morphology synthesized via hydrothermal-impregnation method. • Sea urchin-like K/Al-3 hollow microspheres feature unique pores and sufficient weak basic sites. • The adsorption capacity of K/Al-3 reaches up to 222.6 mg CO2/g-sorbent. • CO2 adsorption retained 95.7 % initial capacity after 100 carbonation-regeneration cycles.

Keywords:

potassium-based sorbents

CO2 adsorption

hydrothermal-impregnation

hollow microspheres

cyclic stability

Morphology engineering-driven high-performance potassium-based CO2 adsorbents: Interface design and structure-activity relationship study

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