Simultaneous increase in conductivity and Seebeck coefficient in a polyaniline/graphene nanosheets thermoelectric nanocomposite

Thermal energy harvesting for large-scale applications using MWCNT-grafted glass fibers and polycarbonate-MWCNT nanocomposites

“…Their use can result in polymer composites with electrical conductivities up to 4×10 5 S/m as reported by Moriarty et al [22]. Relatively high filler loadings (>> 50 wt.%) can be realized [16], which result in quite high electrical conductivities [19,20,[23][24][25], while power factors being in the range of ~140 μW/mK -2 have been reported for single-walled carbon nanotubes (SWCNTs) in poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) matrix [22]. However, such high filler loadings may result also in a significant increase of thermal conductivity [15,26,27].…”

“…In almost all of the corresponding studies, polymer/CNT nanocomposites have been fabricated by means of solution mixing techniques which are known to be not easy in terms of up-scaling. One often reported approach for thermoelectric CNT polymer nanocomposites is using electrically conductive matrix polymers, such as polyaniline (PANI) [19][20][21][22], polythiophene (PT), and PEDOT as the matrix [22,23]. Their use can result in polymer composites with electrical conductivities up to 4×10 5 S/m as reported by Moriarty et al [22].…”

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

“…However, researcher found the TE properties of PANI/graphene composites were still at a low level compared with PANI/CNT composites. This is due to the structural defects, impurity content and easy aggregation of graphene [356,363,364]. Wang et al [356] prepared three different types of PANI/graphene nanocomposite films by solution-assistant dispersing method.…”

Conducting Polymer‐Based Nanocomposites for Thermoelectric Applications

“…PANI/graphene nanosheets (GNs) films were prepared by mixing the PANI powder and GNs in NMP solution [29]. High-magnification field-emission …”

“…Since 2011, several groups have carried out the studies on TE properties of PANI/Gp nanosheets (PANI/GNs) [13,14,29]. It was reported that the conductivity and Seebeck coefficient simultaneously increased with GNs content in the composite, which was attributed to a substantial increase in carrier mobility while carrier concentration was not significantly changed [26].…”