Effects of multiwalled carbon nanotubes and reduced graphene oxide of different proportions on the electrothermal properties of cationic cellulose nanofibril-based composites

Research Progress on the Preparation of Flexible and Green Cellulose-Based Electrothermal Composites for Joule Heating Applications

“…The conductive fillers included multiwalled carbon nanotubes (MWCNTs), graphene oxide (GO), and multiwalled carbon nanotubes and graphene oxide hybrid materials (MWCNTs-GO). The steady-state temperatures were 93.4 °C at 12 V for the MWCNTs-CNFs film prepared with 60 wt % MWCNTs, 91.5 °C at 22 V for the GO-CNFs film containing 60 wt % GO, and 101.2 °C at 18 V for the MWCNTs-reduced graphene oxide (RGO)-CNFs film with 40 wt % hybrid carbon nanomaterials (MWCNTs: RGO = 35:5) (Figure a–e) . The CETCs constructed using hybrid carbon nanofillers achieved a higher heating temperatures at lower voltages using less conductive fillers.…”

“…(d) Maximum temperature for each cycle and (e) flexibility after each cycle. (Panels a–e) Reprinted with permission from ref . Copyright 2022, licensed under CC BY 4.0 ().…”

Eco-friendly preparation and characterization of high-performance electrothermal graphene-AgNPs/lignocellulose composites

“…[15][16][17] The monolayer sp 2 hybridized nanostructure provides high-speed transmission channels for electrons and phonons, endowing Gr lms with exceptional electrothermal properties. 18 For example, Cheng et al 17 fabricated electrothermal composites using functionalized Gr and carbon black. Their study revealed that functionalized Gr signicantly enhanced the electrothermal performance of the composite lms.…”

“…To achieve higher saturation temperatures and faster heating efficiency at lower voltages for Gr-based electric heaters, utilizing the synergistic effect of nano-fillers and employing green and simple process conditions to reduce the electrical resistance of Gr films is an effective method for enhancing their electrothermal performance. Liang et al 18 utilized multi-walled carbon nanotubes (MWCNT) and reduced graphene oxide (RGO) as composite fillers, which were mixed and dispersed with cationic cellulose, followed by vacuum filtration to form a film. The filler content was fixed at 40 wt%, and the effect of the synergistic interaction on the electrothermal performance was investigated by varying the mass ratio of MWCNT to RGO.…”

Carbon Nanotube-, Boron Nitride-, and Graphite-Filled Polyketone Composites for Thermal Energy Management

“…CNT might be a good example to establish a 3D structure in the composite . Formulations consisting of hybrid filler compositions and structures such as carbon nanotube–hexagonal boron nitride, carbon nanotube–graphene, and carbon nanotube–silver flake are found to be very efficient to obtain thermal conductive and superior dielectric materials. , MWCNT was also preferred to be examined for its synergistic effect with other conductive fillers such as reduced graphene oxide, carbon fiber, and both conductive carbon black and graphene nanoplatelets …”