Dispersions of silica nanoparticles in ionic liquids investigated with advanced rheology
Source abstract
Abstract
The colloidal stabilities of dispersions of unmodified and surface-functionalized SiO2 nanoparticles in hydrophobic and hydrophilic imidazolium-based ionic liquids were studied with advanced rheology at three temperatures (25, 100, and 200 °C). The rheological behavior of the dispersions was strongly affected by the ionic liquids hydrophilicity, by the nanoparticles surface, by the concentration of the nanoparticles in the dispersion as well as by the temperature. The unmodified hydrophilic nanoparticles showed a better compatibility with the hydrophilic ionic liquid. The SiO2 surface functionalization with hydrophobic groups clearly improved the colloidal stability of the dispersions in the hydrophobic ionic liquid. The temperature increase was found to lead to a destabilization in all studied systems, especially at higher concentrations. The results of this study imply that ionic liquids with tailored properties could be used in absorbers directly after reactors for gas-phase synthesis of nanoparticles or/and as solvents for their further surface functionalization without agglomeration or aggregation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ionic liquids properties and applications · Surfactants and Colloidal Systems · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
Show source-provided references
1. Albu SP, Ghicov A, Macak JM, Hahn R, Schmuki P (2007) Self organized, free standing TiO2 nanotube membrane for flow-through photocatalytic applications. Nano Lett. 7(5):1286–1289. doi: 10.1021/nl070264k10.1021/nl070264k ↗
2. Berginc H, Hocevar M, Opara-Krasovec U, Hinsch A, Sastrawan R, Topic M (2008) Ionic liquid based electrolyte solidified with SiO2 nanoparticles for dye-sensitized solar cells. Thin Solid Films 516:4645–4650. doi: 10.1016/j.tsf.2007.06.07910.1016/j.tsf.2007.06.079 ↗
3. Briesen H, Fuhrmann A, Pratsinis SE (1998) The effect of precursor in flame synthesis of SiO2. Chem Eng Sci 52(24):4105–4112 S0009-2509(98)00219-X10.1016/S0009-2509(98)00219-X ↗
4. Buzzeo MC, Evans RG, Compton RG (2004) Non-haloaluminate room temperature ionic liquids in electrochemistry—a review. Chem. Phys. Chem. 5:1106–1120. doi: 10.1002/cphc.20030101710.1002/cphc.200301017 ↗
5. Chen X, Guo C, Zhao N (2008) Preparation and characterization of the sol-gel nano-bioactive glasses modified by coupling gamma-aminopropyltriethoxysilane. Appl. Surf. Sci. 255:466–468. doi: 10.1016/j.apsusc.2008.06.06110.1016/j.apsusc.2008.06.061 ↗
6. Chiappe C, Pieracini D (2005) Ionic liquids: solvent properties and organic reactivity. J. Phys. Org. Chem. 8:275–297. doi: 10.1002/poc86310.1002/poc.863 ↗
7. Gao G (2004) Nanostructures & nanomaterials—synthesis, properties & applications. Imperial College Press, London
8. Hapiot P, Lagrost C (2008) Electrochemical reactivity in room temperature ionic liquids. Chem Rev 108:2238–2264. doi: 10.1021/cr068068610.1021/cr0680686 ↗
9. Hara K, Tochibana Y, Ohga Y, Shinpo A, Suga S, Sayana K, Sugihara H, Arakawa H (2003) Dye-senzitized nanocrystalline TiO2 solar cells based on novel coumarin dye. Solar Energ. Mater. & Solar Cells 77:89–103. doi: 10.1016/S0927-0248(02)00460-910.1016/S0927-0248(02)00460-9 ↗
10. Harbeck S, Szatvanyi A, Barsan N, Weimar U, Hoffmann V (2003) DRIFT studies of thick film un-doped and Pd-doped SnO2 sensors: temperature changes effect and CO detection mechanism in the presence of water vapor. Thin Solid Films 436:76–83. doi: 10.1016/S0040-6090(03)00512-110.1016/S0040-6090(03)00512-1 ↗
11. Hashimoto K, Irie H, Fujishima A (2005) TiO2 photocatalysis: a historical overview and future prospects. Jap. J. of Appl. Phys. 44(12):8269–8285. doi: 10.1143/jjap44.826910.1143/JJAP.44.8269 ↗
12. Jiang J, Oberdörster G, Biswas P (2009) Characterization of size, surface charge, and agglomeration state of nanoparticles dispersions for toxicological studies. J Nanopart Res 11:77–89. doi: 10.1007/s11051-008-9446-410.1007/s11051-008-9446-4 ↗
13. Le Bideau J, Viau L, Vioux A (2011) Ionogels, ionic liquids based hybrid materials. Chem. Soc. Rev. 40:907–925. doi: 10.1039/c0cs00059k10.1039/C0CS00059K ↗
14. Lee KM, Chen PY, Lee KP, Ho KC (2009) Binary room temperature ionic liquids based electrolytes solidified with SiO2 nanoparticles for dye-sensitized solar cells. J. Power Sources 190:573–577. doi: 10.1016/j.jpowersour.2009.01.08010.1016/j.jpowsour.2009.01.080 ↗
15. Lu W, Fadeev AG, Qi B, Smela E, Matters BR, Ding J, Spinks GM, Mazurkiewicz J, Zhou D, Wallace GD, MacFarlane DR, Forsyth SA, Forsyth M (2002) Use of ionic liquids for π-conjugated polymer electrochemical devices. Science 297:883–987. doi: 10.1126/science.1072651
16. Lu J, Yan F, Texter J (2009) Advanced applications of ionic liquids in polymer science. Progr. Polym. Sci. 34:431–448. doi: 10.1016/j.progpolymsci.2008.12.00110.1016/j.progpolymsci.2008.12.001 ↗
17. Marsh KN, Deev A, Wu ACT, Tran E, Klamt A (2002) Room temperature ionic liquids as replacements for conventional solvents—a review. Korean J. Chem. Eng. 19(3):357–36210.1007/BF02697140 ↗
18. Metzger TG (2011) The rheology handbook, 3rd edn. Vincentz Network, Hannover
19. Mor GK, Varghese OK, Paulase M, Shankar K, Grimes CA (2006) A review on highly ordered, vertically oriented TiO2 nanotube arrays: fabrication, material properties and solar energy applications. Solar Energ. Mater. & Solar Cells 90:2011–2075. doi: 10.1016/j.solmat.2006.04.00710.1016/j.solmat.2006.04.007 ↗
20. Nakade S, Saito Y, Kubo W, Kitamura T, Wada Y, Yanagida S (2003) Influence of TiO2 nanoparticles size on electron diffusion and recombination in dye-sensitized TiO2 solar cells. J Phys Chem B 107:8607–8611. doi: 10.1021/jp034773w10.1021/jp034773w ↗
21. Nichols G, Byard S, Bloxham MJ, Botteril J, Dawson NJ, Dennis A, Diart V, North NC, Sherwood JD (2002) A review of the terms agglomerate and aggregate with recommendation for nomenclature used in powder and particles characterization. J Pharm Sci 91:2103–2109. doi: 10.1002jps.1019110.1002/jps.10191 ↗
22. Onozuka K, Ding B, Tsuge Y, Naka T, Yamazaki M, Sugi S, Ohno S, Yoshikawa M, Shiratori S (2006) Electrospinning processed nanofibrous TiO2 membranes for photovoltaic applications. Nanotechnology 17:1026–1031. doi: 10.1088/0957-4484/17/4/03010.1088/0957-4484/17/4/030 ↗
23. Pfaff G, Reynders P (1999) Angle-dependent optical effects deriving from submicron structures of films and pigments. Chem Rev 99:1963–1981. doi: 10.1021/cr970075u10.1021/cr970075u ↗
24. Prevo BG, Hon EW, Velev OD (2007) Assembly and characterization of colloid based antireflective coatings on multicrystalline silicon solar cells. J. Mater. Chem. 17:791–799. doi: 10.1039/b612734g10.1039/B612734G ↗
25. Ramsden J (2009) Applied nanotechnology, 1st edn. William Andrew Publishing, Oxford
26. Ryu J, Choi W (2008) Substrate specific photocatalytic activities of TiO2 and multiactivity test for water treatment applications. Environ Sci Technol 42:294–300. doi: 10.1021/es07140x10.1021/es071470x ↗
27. Seddon KR (1997) Ionic liquids for clean technology. J. Chem. Tech. Biotechnol. 68:351–35610.1002/(SICI)1097-4660(199704)68:4<351::AID-JCTB613>3.0.CO;2-4 ↗
28. Shimano S, Zhou H, Hanma I (2007) Preparation of nanohybrid solid-state electrolytes with liquidlike mobilities by solidifying ionic liquids with silica particles. Chem. Mater. 19:5216–5221. doi: 10.1021/cm070781410.1021/cm0707814 ↗
29. Teleki A, Bjelobrk N, Pratsinis SE (2010) Continuous surface functionalization of flame-made TiO2 nanoparticles. Langmuir 26(8):5815–5822. doi: 10.1021/la903714910.1021/la9037149 ↗
30. Tripp CP, Hair ML (1995) Direct observation of surface bonds between self-assembled monolayers of octadecyltrichlorosilane and silica surfaces: a low frequency IR study at the solid/liquid interface. Langmuir 11:1215–1219. doi: 10.1021/la00064a02910.1021/la00004a029 ↗
31. Tsantilitis S, Kammler HK, Pratsinis SE (2002) Population balance modeling of flame synthesis of Titania nanoparticles. Chem Eng Sci 57:2139–2156 PII:S0009-2509(02)00107-010.1016/S0009-2509(02)00107-0 ↗
32. Tsuda T, Hussey CL (2007) Electrochemical applications of room temperature ionic liquids, The Electrochemical Society Interface. Spring 2007:42–49
33. Ueno K, Hata K, Katakabe T, Kondoh M, Watanabe M (2008a) Nanocomposite ion gels based on silica nanoparticles and an ionic liquid: ionic transport, viscoelastic properties and microstructure. J. Phys. Chem. B 112:9013–9019. doi: 10.1021/jp802911710.1021/jp8029117 ↗
34. Ueno K, Inaba A, Kondoh M, Watanabe M (2008b) Colloidal stability of base and polymer—grafted silica nanoparticles in ionic liquid. Langmuir 24:5253–5259. doi: 10.1021/la704066v10.1021/la704066v ↗
35. Ueno K, Imaizumi S, Hata K, Watanabe M (2009) Colloidal interaction in ionic liquids: effect of ionic structures and surface chemistry on rheology of silica colloidal dispersions. Langmuir 25:825–831. doi: 10.1021/la803124m10.1021/la803124m ↗
36. Ueno K, Inaba A, Ueki T, Kondoh M, Watanabe M (2010) Thermosensitive, soft glassy and structural colored colloidal array in ionic liquid: colloidal glass to gel transition. Langmuir 26(23):18031–18038. doi: 10.1021/la103716q10.1021/la103716q ↗
37. Ueno K, Watanabe M (2011) From colloidal stability in ionic liquids to advanced soft materials using unique media. Langmuir 27(15):9105–9115. doi: 10.1021/la103942f10.1021/la103942f ↗
38. Wang G, Wang Q, Lu W, Li J (2006) Photoelectrochemical study of charge transfer properties of TiO2–B nanowires with an application as humidity sensors. J. Phys. Chem. B 110:22029–22034. doi: 10.1021/jp064630k10.1021/jp064630k ↗
39. Wang P, Zakeeruddin SM, Comte P, Exnar I, Grätzel M (2003) Gelation of ionic liquid based electrolytes with silica nanoparticles for quase-solid-state dye-sensitized solar cells. J Am Chem Soc 125:1166–1167. doi: 10.1021/ja029294710.1021/ja029294+ ↗
40. Welton J (1999) Room temperature ionic liquids. Solvents for synthesis and catalysis. Chem Rev 99:2071–2083. doi: 10.1021/cr980032t10.1021/cr980032t ↗
41. Xue BF, Wang HX, Hu YS, Li H, Wang ZX, Meng QB, Huang XJ, Chen LQ, Soto O, Fujishima A (2004) Highly efficient dye sensitized solar-cells using composite electrolyte consisting of LiI(CH3OH)4–I2, SiO2 nanoparticles and ionic liquid. Chin. Phys. Lett. 21(9):1828–183010.1088/0256-307X/21/9/043 ↗
42. Ye C, Liu W, Chen Y, Yu L (2001) Room temperature ionic liquids: a novel versatile lubricant, Chem Commun 2244–2245. doi: 10.1039/b106935g10.1039/b106935g ↗
43. Zhang H, Hong K, Mays JW (2002) Synthesis of block copolymers of styrene and methyl methacrylate by conventional free radical polymerization in room temperature ionic liquids. Macromolecules 35:5738–5741. doi: 10.1021/ma025518x10.1021/ma025518x ↗
44. Zhao D, Wu M, Kou Y, Min E (2002) Ionic liquids: applications in catalysis. Cat. Today 74:157–189 PII:S0920 - 5861(01)00541-710.1016/S0920-5861(01)00541-7 ↗