Synthesis of FeCo-reduced graphene oxide composite and its magnetic and adsorption properties

Synthesis and enhanced microwave absorption properties of PVB/Co 2 Z/RGO layered composite

“…Compared with the random Co 2 Z particles, most of the plate-like Co 2 Z particles are larger than the random Co 2 Z particles and have plate-like morphology. Figure 3b shows that the as-synthesized RGO sample possesses a multilayered morphology, where the nanosheets are peeled from natural graphite powder, which is corresponded with the results of some literatures on RGO 39,40 . As shown in Figure 3c, it is observed that the two phases coexist in the as-prepared PVB/Co 2 Z/RGO composite and the interface is very clear.…”

“…Compared with pure PVB, the typical Raman peaks of RGO are observed at 1316 cm -1 (D-band) and 1596 cm -1 (G-band) in the PVB/RGO composite. The I D /I G of PVB/RGO composite (1.506) is higher than that of the common RGO in the relative reports 39,40 , which may be attributed to the inner defects in the composite. The above results confirm the coexistence of PVB, RGO and Co 2 Z in the as-prepared PVB/RGO/Co 2 Z composite.…”

Morphological Studies on the Agglomeration of FeCo Supported Nitrogen-doped Reduced Graphene Oxide Catalyst Prepared at Varying Annealing Temperature

“…graphene sheets thus inhibit the reduction of FeCo and GO (Fan et al 2015). The metal nanoparticles average size is one of the most important factors that has major contribution towards the excellent catalytic activity and durability of fuel cells (Lu & Chen 2012;Wang et al 2010;Zhang et al 2007).…”

Synthesis and magnetic properties of FeCo/edge-oxidized graphene nanocomposites

“…Two-dimensional graphene oxide (GO) sheets have attracted as one of the most promising materials for industrial applications, which have the physical and chemical characteristics with the theoretical specific surface area, light weight, high thermal conductivity and good electrical conductivity [1,2]. And it has potential for various application such as electronic device, gas sensors, energy storage, wastewater purification and electromagnetic (EM) shield and absorption [1][2][3][4][5][6][7][8][9][10][11]. In EM shield and absorption, complex permeability and permittivity are fundamental physical properties for determining the EM wave reflection or attenuation and also play a key role in electromagnetic materials to verify the * E-mail: kee1@ynu.ac.kr magnetic loss and dielectric loss, respectively [9].…”

“…In EM shield and absorption, complex permeability and permittivity are fundamental physical properties for determining the EM wave reflection or attenuation and also play a key role in electromagnetic materials to verify the * E-mail: kee1@ynu.ac.kr magnetic loss and dielectric loss, respectively [9]. Recently, polymeric nanocomposites with magnetic particles and graphene have been reported for EM shield and absorption application [9][10][11]. The presence of functional groups of GO sheets enables GO to form stronger bonds with various filler materials and aid the interfacial load transfer between GO and filler materials [12].…”