The pure paramagnetism in graphene oxide

Graphene nanosheet-sandwiched platinum nanoparticles deposited on a graphite pencil electrode as an ultrasensitive sensor for dopamine

“…2B show two characteristic bands, D and G. The D band, which appeared at 1344 cm −1 , is due to the defects in the structure, while the G band appeared at 1590 cm −1 is due to sp 2 planner configuration. 47 The ratio between the two bands was observed at 0.98. The 2D band appears at 2691 cm −1 , considered an overtone of the D band.…”

Fabrication of Multiwalled Carbon Nanotubes (MWCNT) and Reduced Graphene Oxide (rGO)‐based thermoplastic polyurethane and polypyrrole nanocomposites for electromagnetic wave absorption application with a low reflection

“…It is noticed in Figure 5C that with increasing frequency, the μ ′ decreases. Material results in a magnetic loss and heat is generated by the absorbing material during the magnetization or antimagnetization process, resulting in a magnetic field attenuation 48 . The magnetic permittivity and tan δ μ of fabricated composite film in 8.2–12.4 GHz, according to the graph, μ ′ is low when compared to ε ′, and 0.5 rGO systems have the greatest μ ′.…”

“…Material results in a magnetic loss and heat is generated by the absorbing material during the magnetization or antimagnetization process, resulting in a magnetic field attenuation. 48 The magnetic permittivity and tan δ μ of fabricated composite film in 8.2-12.4 GHz, according to the graph, μ 0 is low when compared to ε 0 , and 0.5 rGO systems have the greatest μ 0 . Figure 5D depicts the tan δ μ versus frequency, which demonstrates that rGO nanocomposites have a higher tan δ μ than MWCNTs nanocomposites systems.…”

Exploring the Potential of Ag1–xNix/RGO Nanocomposites for Spintronic Application

“…The hydroxyl group is known for inducing paramagnetism in GO. 9 The covalent functionalization of GO creates the sp 3 network with an unsaturated dangling bond that acts as a source of magnetism for GO. 10 Nevertheless, fully oxidized GO is an insulator with the band gap in order of a few eV that can be tailored by removing oxygen functionalities into some meV in reduced graphene oxide (RGO).…”

“…The delocalized π electronic systems can be effectively engineered to induce magnetism in graphene by manipulating the oxygen functionalities, inducing defects (point defects, multiple defects, and topological defects) or by incorporating transition metal atoms or alloys. − Graphene oxide (GO) is an oxygen functionalities-laden graphene-like structure consisting of hydroxyl, carbonyl, carboxyl, and epoxy groups located at the basal plane and edges of graphene. The hydroxyl group is known for inducing paramagnetism in GO . The covalent functionalization of GO creates the sp 3 network with an unsaturated dangling bond that acts as a source of magnetism for GO .…”