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Iron Impairs CO2 Capture Performance of MgO

Topic:

Iron doping in MgO was found to reduce CO₂ capture performance because the leached iron ions neutralize near-surface basicity and decrease surface reactivity.

Iron is a common impurity in naturally-sourced magnesium minerals used to produce MgO, and this work demonstrates the importance of using iron-free MgO in direct air capture.

DOI: 10.1021/acsami.4c13597