3D hierarchical graphene/CNT with interfacial polymerized polyaniline nano-fibers

Conducting polymers: a comprehensive review on recent advances in synthesis, properties and applications

“…A microemulsion technique is also followed for the synthesis of polyaniline, where the polymerization also takes place in the interface between two immiscible liquids, but the difference is in the surfactant used. [29][30][31] The electropolymerization technique happens without the effect of an oxidant, and is the same in the case of polyacetylene. 32,33 Electrospinning is also used to synthesise brous polymer morphologies of nano or micro diameters under the inuence of a strong electrical eld.…”

New Progress on Fiber-Based Thermoelectric Materials: Performance, Device Structures and Applications

“…The graphene fibers had maximal a ZT value of 3.7 × 10 −6 with increasing temperature from 100 to 290 K [ 77 ]. In order to improve the thermoelectric performance of graphene fibers, some strategies have been explored in recent years, such as halogen doping [ 78 ], polyethyleneimine ethoxylated (PEIE) doping [ 17 ], embedding CNTs, and doping with polyaniline (PANI) [ 79 ]. For example, as with halogen doping, bromine doping in graphene fiber could decrease the thermal conductivity by enhancing phonon scattering and increase the electrical conductivity and Seebeck coefficient by the Fermi level downshift [ 78 ].…”

“…The fabricated p–n-type graphene fibers exhibited power factors of 0.78 μWm −1 K −2 and 0.23 μWm −1 K −2 , and the thermal conductivity was measured as 0.26 Wm −1 K −1 and 0.24 Wm −1 K −2 , from which the ZT was calculated as 2.04 × 10 −6 and 0.96 × 10 −6 [ 17 ]. Moreover, by mixing graphene and multi-wall carbon nanotubes (MWCNs), a composite material with 3D carbon-based hierarchical structure was fabricated, and then the composite material was introduced with PANI nano spacers to enhance thermoelectric properties [ 79 ]. Compared with the PANI fibers, carbon-based mixture blended with PANI fibers changed the type of thermoelectrical carrier from P-type to N-type [ 79 ].…”

Synthetic Multiscale Graphene Aerogel Polymer Composites with High‐Conductive Performances for Hyperthermia Equipment

“…However, the GO aerogel prepared by functionalized GO (FGO) is not only given new functions, but still maintains the morphology and mechanical properties of the GO aerogel, or even better. [30][31][32][33] Facts have proved that two or more kinds of functional particles with similar enhancement functions are easy to get a synergic effect and achieve optimized assembly behavior. [34] A high-quality 3D interconnected network is a molecular-scale building unit that combines covalent bonds, ionic bonds, and even intermolecular forces to achieve efficient load transfer between nanosheets.…”