Experimental study on critical heat flux of highly efficient soft hydrophilic CuO–chitosan nanofluid templates

In situ generated hydrophobic micro ripples via π–π stacked pop-up reduced graphene oxide nanoflakes for extended critical heat flux and thermal conductivities

“…15 In addition, previously our group has reported the experimental study of hydrophilic CuO-chitosan (CS) nanouid templates for extended CHFs and achieved up to 79% using 0.06 wt% CuO-CS NF. 16 In light of these results, we therefore started with the idea for the present work, which is to enhance CHF by choosing a pop-up reduced graphene oxide nanouid (Pop-rGO-Nf) for better thermal conductivity and selfstacking characteristics to form a more advantageous rippled structure to increase CHF.…”

“…Graphene oxide (GO) has attracted great interest because of its unique physical properties that arise from its single layer thick planar sheet assembled with sp 2 bonded carbon atoms in a hexagonal two dimensional (2D) lattice structure. [16][17][18][19][20][21][22][23][24][25] Few layered GO structures have been attractive for heat transfer applications because of their higher thermal conductivity maximum up to 3000-5300 W m À1 K À1 . 26 Reduced graphene oxide (rGO) is commonly prepared from GO by chemical and thermal routes.…”

Sand-polished Kapton film and aluminum as source of electron transfer triboelectric nanogenerator through vertical contact separation mode

“…Based on the experimental results, the change in impact force was gradually increased with respect to the applied contact frequencies. When more impact force was applied, the more effective area was induced, which means that the higher output current generated according to the applied frequencies [17,[19][20][21].…”

Ionic Polymer-Metal Composite Electro-Active Nano-biopolymer Actuator

“…0.57 cm, which was 2.28 times more than SCS/IL with the tip displacement of 0.025 cm under the input voltage of 2 V. The tip displacements were 0.4 cm for SCS-IL 0.5 wt% GO and 0.342 cm for SCS-IL 0.1 wt% GO, respectively [9,10]. Next, we also study selectively the actuation performance with SCS-IL-0.1 wt% GO actuator at the AC voltages from 2 to 10 V at the same excitation frequency [11,12]. The displacement of the SCS/IL-0.1 wt% GO actuators was 10.5 mm from an applied voltage at 10 V, 8.7 mm from at 5 V, 3.2 mm from 3 V and 2.1 mm from 2 V with an excitation frequency of 0.1 Hz, respectively, which indicate that these nanocomposites actuators are promising candidates for future high-performance actuators ( Figs.…”

“…A broad peak and a sharp peak at 2θ value of 20.3° and 10°, which are clear evidence of the amorphous nature of SCS film and GO, respectively. However, it is noticed that the intensity of characteristic peaks of SCS-IL-GO was increased with the loading of GO sheets from 0.1 wt%, 0.5 wt% and 1 wt% in the SCS-IL matrix and also increased the peak heights [8][9][10][11][12]. 0.57 cm, which was 2.28 times more than SCS/IL with the tip displacement of 0.025 cm under the input voltage of 2 V. The tip displacements were 0.4 cm for SCS-IL 0.5 wt% GO and 0.342 cm for SCS-IL 0.1 wt% GO, respectively [9,10].…”