title: Facile synthesis of iron oxides/reduced graphene oxide composites: application for electromagnetic wave absorption at high temperature.
abstract: Iron oxides/reduced graphene oxide composites were synthesized by facile thermochemical reactions of graphite oxide and FeSO4 · 7H2O. By adjusting reaction temperature, α-Fe2O3/reduced graphene oxide and Fe3O4/reduced graphene oxide composites can be obtained conveniently. Graphene oxide and reduced graphene oxide sheets were demonstrated to regulate the phase transition from α-Fe2O3 to Fe3O4 via γ-Fe2O3, which was reported for the first time. The hydroxyl groups attached on the graphene oxide sheets and H2 gas generated during the annealing of graphene oxide are believed to play an important role during these phase transformations. These samples showed good electromagnetic wave absorption performance due to their electromagnetic complementary effect. These samples possess much better electromagnetic wave absorption properties than the mixture of separately prepared Fe3O4 with rGO, suggesting the crucial role of synthetic method in determining the product properties. Also, these samples perform much better than commercial absorbers. Most importantly, the great stability of these composites is highly advantageous for applications as electromagnetic wave absorption materials at high temperatures.
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Lili
authors: L
authors: Zhang
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Xinxin
authors: X
authors: Yu
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Hongrui
authors: H
authors: Hu
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Yang
authors: Y
authors: Li
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Mingzai
authors: M
authors: Wu
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Zhongzhu
authors: Z
authors: Wang
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Guang
authors: G
authors: Li
authors: School of Physics and Materials Science, Anhui University, Hefei 230601, China.
authors: Zhaoqi
authors: Z
authors: Sun
authors: CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science &Engineering, University of Science and Technology of China, Hefei 230026, China.
authors: Changle
authors: C
authors: Chen