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. 2019 Nov 26;7:711. doi: 10.3389/fchem.2019.00711

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Copyright © 2019 Li, Xu, Ding, Shen, Chen, Li and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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SEM images of (a) Fe₃O₄ MNCs, (b) Fe₃O₄@SiO₂ nanochains, (c) rGO/Fe₃O₄@SiO₂, and corresponding (d) XRD patterns and (f) hysteresis loops at room temperature, (e) FESEM image of the fracture surface of rGO/Fe₃O₄@SiO₂/PVDF and corresponding elemental mapping images of Si, O, Fe, and F.