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September 5, 2025Annals of the New York Academy of Sciences

Al2O3/MgO‐doped, CaO‐based adsorbents for CO2 capture: A performance study

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Authors

CZChuanhui ZhangJFJia FangXXXilong Xu

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Overview

This study demonstrates enhanced co2 capture performance in calcium carbonate and oxalate-based adsorbents, indicating critical precursor and dopant influences.

Key Points

  • CaO-1 showed superior co2 adsorption at 0.63 g/g but lost 38% capacity after 10 cycles due to sintering.
  • Al2O3 doping improved capacity to 0.65 g/g and kinetics, but a degradation of 33.8% occurred after 20 cycles.
  • MgO doping provided exceptional cyclic stability, retaining 93% capacity over 10 cycles—55% better than CaO-1.
  • Optimal compositions of CaO-Al2O3 and CaO-MgO balance rapid adsorption and structural durability for effective adsorbent design.

Cite This Study

Zhang et al. (2025) studied this question.

synapsesocial.com/papers/68c238d2b210217d64778cdahttps://doi.org/10.1111/nyas.70026
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