Abstract Hollow mesoporous Fe3O4 microspheres are attractive as corrosion inhibitor carriers for their structural stability, and strong superparamagnetic properties. Here the morphology-controlled magnetic hollow mesoporous Fe3O4 nanocarriers (MHMNs) with saturation magnetization of ca. 77 emu·g−1 were fabricated by self-template etching route. Serial characterization results showed that the sample (MHMNs-7.0), obtained by etching MHMNs with 7.0 mg/mL of the oxalic acid solution, presented the largest cavity volume and a rich pore structure, ...
