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开发了在富氧Fe(acac)3络合物体系中膨化氧化石墨制取氧化石墨烯/Fe2O3复合物的一步法。应用FT-IR、XRD、VSM、AFM及低温直流电导测量法对所制氧化石墨/Fe2O3复合物进行表征。FT-IR研究结果显示:膨化后,氧化石墨的环氧基团分解,同时形成了氧化铁粒子与氧化石墨烯复合物。AFM测试表明:在较高Fe2O3含量下,氧化石墨烯片层结构剥蚀形成厚达5mm氧化石墨烯叠层。VSM研究显示:在室温和0.13emu/g~5.5emu/g范围内,全部复合物呈铁磁特性。这些复合物的导电性受控于准电子跃迁机制。
A one-step process for the preparation of graphene oxide / Fe2O3 composite by exfoliated graphite oxide in an oxygen-enriched Fe (acac) 3 complex has been developed. The prepared graphite oxide / Fe2O3 composite was characterized by FT-IR, XRD, VSM, AFM and low temperature DC conductivity measurement. FT-IR results show that: after puffing, graphite oxide epoxy group decomposition, while the formation of iron oxide particles and graphene oxide composite. AFM tests showed that the graphene oxide films were denuded to form thick oxide graphene oxide layers at higher Fe2O3 loadings. The VSM study showed that all complexes were ferromagnetic at room temperature and in the range of 0.13emu / g to 5.5emu / g. The conductivity of these complexes is governed by quasi-electronic transition mechanisms.