Jana Arpita, Scheer Elke, Polarz Sebastian
Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany.
Department of Physics, University of Konstanz, 78457 Konstanz, Germany.
Beilstein J Nanotechnol. 2017 Mar 24;8:688-714. doi: 10.3762/bjnano.8.74. eCollection 2017.
Single layer graphite, known as graphene, is an important material because of its unique two-dimensional structure, high conductivity, excellent electron mobility and high surface area. To explore the more prospective properties of graphene, graphene hybrids have been synthesised, where graphene has been integrated with other important nanoparticles (NPs). These graphene-NP hybrid structures are particularly interesting because after hybridisation they not only display the individual properties of graphene and the NPs, but also they exhibit further synergistic properties. Reduced graphene oxide (rGO), a graphene-like material, can be easily prepared by reduction of graphene oxide (GO) and therefore offers the possibility to fabricate a large variety of graphene-transition metal oxide (TMO) NP hybrids. These hybrid materials are promising alternatives to reduce the drawbacks of using only TMO NPs in various applications, such as anode materials in lithium ion batteries (LIBs), sensors, photocatalysts, removal of organic pollutants, etc. Recent studies have shown that a single graphene sheet (GS) has extraordinary electronic transport properties. One possible route to connecting those properties for application in electronics would be to prepare graphene-wrapped TMO NPs. In this critical review, we discuss the development of graphene-TMO hybrids with the detailed account of their synthesis. In addition, attention is given to the wide range of applications. This review covers the details of graphene-TMO hybrid materials and ends with a summary where an outlook on future perspectives to improve the properties of the hybrid materials in view of applications are outlined.
单层石墨，即石墨烯，因其独特的二维结构、高导电性、优异的电子迁移率和高比表面积而成为一种重要材料。为了探索石墨烯更具前景的特性，人们合成了石墨烯杂化物，即将石墨烯与其他重要的纳米粒子（NPs）结合在一起。这些石墨烯-NP杂化结构特别引人关注，因为杂化后它们不仅展现出石墨烯和纳米粒子的各自特性，还呈现出进一步的协同特性。还原氧化石墨烯（rGO）这种类似石墨烯的材料，可以通过氧化石墨烯（GO）的还原轻松制备，因此为制造多种石墨烯-过渡金属氧化物（TMO）NP杂化物提供了可能。这些杂化材料有望成为减少在各种应用中仅使用TMO NPs所带来缺点的替代物，比如锂离子电池（LIBs）的负极材料、传感器、光催化剂、有机污染物的去除等。最近的研究表明，单个石墨烯片（GS）具有非凡的电子传输特性。将这些特性应用于电子学的一种可能途径是制备石墨烯包裹的TMO NPs。在这篇批判性综述中，我们详细讨论了石墨烯-TMO杂化物的发展及其合成方法。此外，还关注了其广泛的应用。这篇综述涵盖了石墨烯-TMO杂化材料的细节，并在结尾进行了总结，概述了从应用角度改善杂化材料性能的未来展望。
