MoS₂ nanosheets vs. nanowires: preparation and a theoretical study of highly stable and efficient nanofluids for concentrating solar power

Abstract

Methodology to prepare highly stable and improved nanofluids controlling the nanomaterial morphology.

Novel WS2-Based Nanofluids for Concentrating Solar Power: Performance Characterization and Molecular-Level Insights

“…The program performed to measure the isobaric specific heat has been previously described in the literature. 21 Thermal conductivity is one of the most important properties of nanofluids prepared for use as a heat transfer fluid. In this study, thermal conductivity (k) was obtained from thermal diffusivity (D) values according to the ASTM E1461-01 standard, which supplies the relationship between both properties as , where all variables have ( ) = ( )• P ( )• ( ) been defined previously.…”

“…The values of the polar and dispersive components were obtained using the WORK formula (Wendt, Owens, Rabel and Kaeble) 20 following the procedure described in the literature,21 in which surface tension and contact angle are measured. Details of this calculation are shown in the Supporting Information.…”

The Role of the Interactions at the Tungsten Disulphide Surface in the Stability and Enhanced Thermal Properties of Nanofluids with Application in Solar Thermal Energy

“…% PEG in the HTF. The lower concentration fits the ratio of surface tension components well as is shown in [29]. The higher concentration is also tested for evaluating if higher concentrations lead to new effects.…”

“…Nanomaterials 2020, 10, x FOR PEER REVIEW 4 of 16 these measurements, a program was created which has been previously reported [29]. Furthermore, thermal conductivity values for the nanofluids were obtained indirectly from the thermal diffusivity measurements obtained by the laser flash technique (LFA 1600 equipment, supplied by Linseis Thermal Analysis, Selb, Germany).…”

Self-dispersible graphene quantum dots in ethylene glycol for direct absorption-based medium-temperature solar-thermal harvesting

“…22 To improve the dispersion stability of the nanouids, surface modication of solar absorbers with surfactants, organic ligands or polymer chains is usually required, which adds both fabrication complexity and cost to the solar-thermal nanouids. 23,24 Therefore, developing self-dispersible medium-temperature carbon solar-thermal nanouids, which at best can be prepared through a facile way at large scale, is still a grand challenge.…”