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Sodium-ion batteries have been widely used in energy storage owing to its high sodium content and low cost. This study proves that mesoporous silicon microspheres (MSMs) with the homogeneously distributed mesopores ranging from 1 to 10 nm can be used as anodes of NIBs. In situ magnesiothermic reduction of silicon oxide was carried out to synthesize the MSM samples. An anode in NIBs was tested, and...
Multiferroic La-doped BiFeO3 thin films have been prepared by a sol-gel plus spin-coating process, and the local magnetoelectric coupling effect has been investigated by the magnetic-field-assisted scanning probe microscopy connected with a ferroelectric analyzer. The local ferroelectric polarization response to external magnetic fields is observed and a so-called optimized magnetic field of ~40 Oe...
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