When Cd2+ is adsorbing on Fe12O12 nanocage, a strong interaction occurs between Cd and Fe, instead of an Cd-O interaction. What may be the reason?

20 August 2025 1 7K Report

There is a bond path shown between Cd and Fe in QTAIM analysis.

The tendency of a soft acid like Cd+2 forming strong interaction with Fe in Fe12O12 nanocage is the result of a combination as stated below.

1. as per hard and soft acid base theory and

2. Smaller electronegative difference and orbital overlap between Cd and Fe leads to more covalent interactions.

Futher details, you may download from internet.

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