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Carbon black dispersions in surfactant-based microemulsion

  • Mohamed Youssry (a1), Dominique Guyomard (a2) and Bernard Lestriez (a2)

In an attempt to introduce a novel approach to formulate carbon black (ketjen black) suspension with enhanced colloidal stability, improved flowability, and higher conductivity, ketjen black was dispersed in microemulsion systems composed of a non-ionic surfactant (Triton X100), decanol, and water. Rheo-electric and rheo-microscopy proved to be very powerful techniques that are able to elucidate the microstructure evolution with the composition and under shear flow. Interestingly, the carbon black slurries at low decanol/water ratio are weak gels (flowable) with higher electrical conductivity than those at higher ratio, which shows strong-gel viscoelastic response. In addition, the slurries show recoverable electrical behavior under shear flow in tandem with the viscosity trend. It is likely that the oil-in-water microemulsion enhances slurries’ stability without affecting the percolating network of carbon black. On the other hand, the oil-in-water analogous and bilayer structure of the lamellar phase makes the slurries less conductive as a consequence of losing the network percolation.

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1. Flandrois S. and Simon B.: Carbon materials for lithium-ion rechargeable batteries. Carbon 37(2), 165 (1999).
2. Armand M. and Tarascon J-M.: Building better batteries. Nature 451(7179), 652 (2008).
3. Zhang Q., Uchaker E., Candelaria S.L., and Cao G.: Nanomaterials for energy conversion and storage. Chem. Soc. Rev. 42(7), 3127 (2013).
4. Yao F., Pham D.T., and Lee Y.H.: Carbon-based materials for lithium-ion batteries, electrochemical capacitors, and their hybrid devices. ChemSusChem 8(14), 2284 (2015).
5. Youssry M., Madec L., Soudan P., Cerbelaud M., Guyomard D., and Lestriez B.: Nonaqueous carbon black suspensions for lithium-based redox flow batteries: Rheology and simultaneous Rheo-electrical behavior. Phys. Chem. Chem. Phys. 15(34), 14476 (2013).
6. Amari T. and Watanabe K.: Flow properties and electrical conductivity of carbon black–linseed oil suspension. J. Rheol. 34(2), 207 (1990).
7. Genovese D.B.: Shear rheology of hard-sphere, dispersed, and aggregated suspensions, and filler-matrix composites. Adv. Colloid Interface Sci. 171–172, 1 (2012).
8. Rwei S-P., Ku F-H., and Cheng K-C.: Dispersion of carbon black in a continuous phase: Electrical, rheological, and morphological studies. Colloid Polym. Sci. 280(12), 1110 (2002).
9. Chang Z., Yang Y., Li M., Wang X., and Wu Y.: A hybrid of CoOOH nanorods with carbon nanotubes as a superior positive electrode material for supercapacitors. J. Mater. Chem. A 2(103), 10739 (2014).
10. Luo J-Y., Cui W-J., He P., and Xia Y-Y.: Raising the cycling stability of aqueous lithium-ion batteries by eliminating oxygen in the electrolyte. Nat. Chem. 2(9), 760 (2010).
11. Madec L., Youssry M., Cerbelaud M., Soudan P., Guyomard D., and Lestriez B.: Surfactant for enhanced rheological, electrical, and electrochemical performance of suspensions for semisolid redox flow batteries and supercapacitors. ChemSusChem 80(2), 396 (2015).
12. Evans D.F., Mitchell D.J., and Ninham B.W.: Oil, water, and surfactant: Properties and conjectured structure of simple microemulsions. J. Phys. Chem. 90(13), 2817 (1986).
13. Shinoda K. and Lindman B.: Organized surfactant systems: Microemulsions. Langmuir 3(2), 135 (1987).
14. Rosano H.L., Cavallo J.L., Chang D.L., and Whittam J.H.: Microemulsions: A commentary on their preparation. J. Soc. Cosmet. Chem. 39(3), 201 (1988).
15. Cazabat A.M., Langevin D., Meunier J., and Pouchelon A.: Critical behavior of microemulsions. Adv. Colloid Interface Sci. 16, 175 (1982).
16. Iwunze M.O., Sucheta A., and Rusling J.F.: Bicontinuous microemulsions as media for electrochemical studies. Anal. Chem. 62(6), 644 (1990).
17. Rusling J.F.: Electrochemistry in micelles, microemulsions, and related organized media. In Electroanalytical Chemistry, Vol. 18, Bard A.J., ed., (Marcel Dekker, New York, 1994); pp. 188.
18. La Mesa C., Ranieri G.A., and Terenzi M.: Phase diagram of the system water–Triton TX 100–decanol: A thermodynamic study. Colloids Surf. 42(1), 59 (1989).
19. Warr G.G.: Shear and elongational rheology of ternary microemulsions. Colloids Surf., A 103(3), 273 (1995).
20. Sharma G., Wilson K., van der Walle C.F., Sattar N., Petrie J.R., and Kumar M.: Microemulsions for oral delivery of insulin: Design, development and evaluation in streptozotocin induced diabetic rats. Eur. J. Pharm. Biopharm. 76(2), 159 (2010).
21. Acharya D.P. and Hartley P.G.: Progress in microemulsion characterization. Curr. Opin. Colloid Interface Sci. 17(5), 274 (2012).
22. Youssry M., Kamand F., Magzoub M.I., and Nasser M.S.: Aqueous dispersions of carbon blacks and their hybrid with carbon nanofibers. J. Colloid Interface Sci. (submitted).
23. Mewis J., de Groot L.M., and Helsen J.A.: Dielectric behaviour of flowing thixotropic suspensions. Colloids Surf. 22(2), 271 (1987).
24. Youssry M., Guyomard D., and Lestriez B.: Suspensions of carbon nanofibers in organic medium: Rheo-electrical properties. Phys. Chem. Chem. Phys. 17(48), 32316 (2015).
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Journal of Materials Research
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