由还原氧化石墨烯和氧化锰形成的混合材料中导电性与铁磁性的共存。
Coexistence of electrical conductivity and ferromagnetism in a hybrid material formed from reduced graphene oxide and manganese oxide.
作者信息
Murashima Yusuke, Ohtani Ryo, Matsui Takeshi, Takehira Hiroshi, Yokota Ryotaro, Nakamura Masaaki, Lindoy Leonard F, Hayami Shinya
机构信息
Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
出版信息
Dalton Trans. 2015 Mar 21;44(11):5049-52. doi: 10.1039/c5dt00299k.
The coexistence of electrical conductivity and ferromagnetism has been achieved in a reduced graphene oxide/manganese oxide hybrid (rGO-Mn) synthesized by chemical reduction of a graphene oxide and Mn(2+) (as its GO-Mn(2+) complex) using hydrazine. The rGO-Mn and GO-Mn(2+) complexes were characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). In rGO-Mn the Mn was present as manganese oxide nanoparticles located on the rGO nanosheets. This rGO-Mn exhibits both electrical conductivity and ferromagnetism. The synthesis of hybrids incorporating rGO and metal oxides is proposed as a useful strategy for generation of new multifunctional nano-composite materials.
通过使用肼对氧化石墨烯和Mn(2+)（以其GO-Mn(2+)络合物形式）进行化学还原，在还原氧化石墨烯/氧化锰杂化物（rGO-Mn）中实现了导电性和铁磁性的共存。通过傅里叶变换红外光谱（FT-IR）、拉曼光谱、X射线光电子能谱（XPS）和透射电子显微镜（TEM）对rGO-Mn和GO-Mn(2+)络合物进行了表征。在rGO-Mn中，Mn以位于rGO纳米片上的氧化锰纳米颗粒形式存在。这种rGO-Mn同时表现出导电性和铁磁性。将rGO与金属氧化物结合的杂化物的合成被认为是生成新型多功能纳米复合材料的一种有用策略。
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