Stability, thermal conductivity, and rheological properties of controlled reduced graphene oxide dispersed nanofluids

Zhang, Haiyan; Wang, Shanxing; Lin, Yixin; Feng, M. S.; Wu, Qigang

doi:10.1016/j.applthermaleng.2017.03.064

Cited by 80 publications

(40 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, graphene oxide is hydrophilic and has a superior dispersion stability and higher thermal conductivity [29,30]. Nano-Al 2 O 3 is a common metal oxide material and is widely used in various nanofluids because the Al 2 O 3 nanofluid has lower viscosity and better rheological behavior as compared to other particles such as copper oxide [31,32].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of specific heat of aqueous graphene oxide Al2O3 hybrid nanofluid

Gao

Yang

et al. 2021

THERM SCI

View full text Add to dashboard Cite

The specific heat of aqueous graphene+Al 2 O 3 (1:1) hybrid nanofluid was measured using the cooling method. The influence of nanoparticle mass fraction and temperature on the specific heat capacity of the hybrid nanofluids was investigated, the specific heat of the hybrid nanofluid was compared with that of aqueous graphene oxide nanofluid and Al 2 O 3 nanofluid. A fitted formula of the specific heat of the hybrid nanofluid was proposed based on the experimental data. It indicates that the specific heat reduction ratio increases with increase of nanoparticle fraction; the maximum reduction ratio is 7% at 0.15wt% at 20 °C. The mass fraction of nanoparticle affects the specific heat of hybrid nanofluid more significantly at lower temperature. Temperature impacts the specific heat more distinctly than the nanoparticle fraction. The specific heat increases with temperature and the maximum specific heat reduction ratio of the hybrid nanofluid diminishes from 7 % at 20 °C to 2% at 70 °C at the mass fraction of 0.05%.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental investigation of specific heat of aqueous graphene oxide Al2O3 hybrid nanofluid

Gao

Yang

et al. 2021

THERM SCI

View full text Add to dashboard Cite

show abstract

“…Konios et al [21] analyzed the maximum solubility of graphene oxide and reduced graphene oxide in an inorganic solvent with the distilled water. Zhang et al [27] prepared the dispersion of reduced graphene oxide which was synthesized by Hummers method with the ionized water and they determined the dispersion zeta potential's value as -50.9 mV and the thermal conductivity value as 0.86 W/m*K of the dispersion. The following manner restricts the industrial use of graphene oxide dispersions that their one or two properties are separately improved as the zeta potential or particle's size.…”

mentioning

confidence: 99%

Improvement of the Graphene Oxide Dispersion Properties with the Use of TOPSIS Based Taguchi Application

Şimşek

Ultav

Korucu

et al. 2018

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

[20]. In many industrial applications, the stability of graphene oxide dispersions plays a crucial role for the proper solvent preparation. Therefore, many researchers have done the studies to understand the dispersion behavior and to improve the dispersion stability. Konios et al. [21] prepared GO and reduced graphene oxide (rGO) dispersions with the different solvents and they showed that the GO and rGO samples forms a stable dispersion with the deionized-water, ethylene glycol and N-methyl-2-pyrrolidone (NMP). Taha-Tijerina et al. [22] prepared a dispersion with the deionized-water, ethylene glycol, ethanol and mineral oil and they illustrated that the GO samples forms a strong stable dispersion with the deionized-water and ethylene glycol. Graphene oxide-deionized water nano-fluids are more attractive options because of the formation of fairly strong stable dispersions with graphene oxide in the deionized water and the elimination of toxic solvents such as NMP.The quality of the dispersions including "strong stability" can be represented with some criteria such as zeta potential value, thermal and electrical conductivity, pH, and particle size. Therefore, many studies have been done to analyze the GO dispersion properties. The average particle size and zeta potential value [22] [29] were analyzed without using any systematic analyzing such an experimental design approach. It has been determined that oxidants and pH of the

show abstract

“…Significant enhancements in thermal conductivity upon increase of the additive concentration and nanofluids temperaturewas found with the maximum enhancement of 32.19% at 60 o C for a concentration of 1.0 mg/ml [3].Meanwhile, graphene-based composites attracts more and more attentions for various applications, such as graphene/alumina nanocomposite for monitoring of microbial cell viability [4], 3D flower-like graphene via alumina doping and incorporating Co as oxygen electrode catalyst [5], nitrogen doped graphene anchored cobalt oxides as oxygen reduction and oxygen revolution reaction catalyse [6], Pd/Al 2 O 3 hybrid particles decorated graphene sheets for hydrogen storage [7], alumina-coated Fe 3 O 4 -reduced graphene oxide composite and SiO 2 @SnO 2 /graphene composite as anode materials for lithium ion battery [8,9].The hydrothermal or solvothermal process has been used in a wide range for synthesis graphene-based nanocomposites [5,8,9,10]. Currently, a few papers has been reported about the application of graphene-based composites on nanofluids.…”

Section: Introductionmentioning

confidence: 92%

Stability, thermal conductivity, and rheological properties of controlled reduced graphene oxide dispersed nanofluids

Cited by 80 publications

References 40 publications

Experimental investigation of specific heat of aqueous graphene oxide Al2O3 hybrid nanofluid

Experimental investigation of specific heat of aqueous graphene oxide Al2O3 hybrid nanofluid

Improvement of the Graphene Oxide Dispersion Properties with the Use of TOPSIS Based Taguchi Application

Preparation and Thermal Conductivity of Alumina/Reduced Graphene Oxide Composite Dispersed Aqueous Nanofluids

Contact Info

Product

Resources

About