Graphene (G)-based nanocomposites have received much attention in various disciplines due to their high specific surface area, good compatibility, low mass density, elegant flexibility as well as the excellent synergistic effect of G with other nanomaterials. Numerous studies have been attempted to fabricate G-based polymer composites with novel and improved properties. However, the dispersion behavior of G in polymer matrix and the interfacial bonding between G and polymers still restrict the better performances and broader applications of the fabricated G-polymer nanocomposites. In this review, we summarized the most recent studies on the modification of G with polymers and the subsequent synthesis and applications of the high quality G-polymer nanocomposites. The strategies for surface modification of G with polymers, including various covalent and non-covalent techniques, are introduced in detail. In addition, a series of effective processing routes for producing high quality G-polymer nanocomposites, such as melt compounding, solution blending, insitu polymerization, latex mixing, and electropolymerization are introduced and discussed. Finally, the potential applications of the synthesized G-polymer nanocomposites in electrocatalyts, drug delivery, high performance materials, biosensors, and biomedical materials are presented.

We summarize the recent advances in the electrospinning fabrication of hybrid polymer nanofibers decorated with functionalized nanoscale building blocks (NBBs) to obtain biosensors with better performances.

The performance of graphene‐based hybrid materials greatly depends on the dispersibility of nanoscale building blocks on graphene sheets. Here, a quick green synthesis of nanoscale graphene (NG) nanosheets decorated with highly dispersed silver nanoparticles (AgNPs) is demonstrated, and then the electrospinning technique to fabricate a novel nanofibrous membrane electrode material is utilized. With this technique, the structure, mechanical stability, biochemical functionality, and other properties of the fabricated membrane electrode material can be easily controlled. It is found that the orientations of NG and the dispersity of AgNPs on the surface of NG have significant effects on the properties of the fabricated electrode. A highly sensitive H2O2 biosensor is thus created based on the as‐prepared polymeric NG/AgNP 3D nanofibrous membrane‐modified electrode (MME). As a result, the fabricated biosensor has a linear detection range from 0.005 to 47 × 10−3m (R = 0.9991) with a supralow detection limit of 0.56 × 10−6m (S/N = 3). It is expected that this kind of nanofibrous MME has wider applications for the electrochemical detection and design of 3D functional nanomaterials in the future.

Electromagnetic shielding materials generated with the extensive application of electromagnetic wave have been utilized in military radar stealth, electromagnetic shielding of advanced electronic equipment, electromagnetic radiation protection, and other fields. With the quick development of Internet and electronic devices, a large number of electromagnetic waves flood into the living environment, affecting human life and health potentially. Meanwhile, further development and applications of terahertz (THz) electromagnetic detection technology challenge the research of electromagnetic interference shielding (EMIS). Therefore, EMIS materials have been developed toward the direction of high efficiency, wide bandwidth, and lightweight. However, traditional single metal-based and polymer-based EMIS materials cannot meet the demand. Current studies confirmed that graphene, especially graphene foam (GF)-based EMIS materials, has become one of the most potential EMIS materials in the field of electromagnetic wave loss and absorption due to its unique physical structure and excellent electrical and mechanical properties. GF, a three-dimensional graphene structure prepared from graphene and its derivatives not only fully utilizes the unique physical and chemical properties of graphene but also further reduces the density of EMIS materials and improves the EMIS performance. This work expounds the potential value of graphene in the field of EMIS based on the mechanism of EMIS and then summarizes the recent progress of GF-based materials for EMIS applications. More focus on the effects of different preparation methods toward the structure, mechanical properties, and EMIS performance of GF materials are introduced and discussed in detail.