Luminescent alumina-based aerogels modified with tris(8-hydroxyquinolinato)aluminum
Source abstract
Abstract
A facile procedure was developed for the production of Al2O3 aerogels modified with tris(8-hydroxyquinolinato)aluminum complex (AlQ3). The addition of 8-hydroxyquinoline during the stage of alumina lyogel formation was found to increase gelation duration. The translucent monolithic aerogels were obtained by supercritical drying of lyogels in CO2. The composition and properties of aerogels were analyzed using low-temperature nitrogen adsorption, helium pycnometry, IR spectroscopy, UV–visible spectroscopy, luminescence spectroscopy, powder X-ray diffraction, scanning and transmission electron microscopy, and thermogravimetry combined with mass spectrometry. The obtained aerogels had low density (0.15–0.18 g cm−3), high specific surface area (480–550 m2/g), high porosity (90–95%), and showed bright luminescence upon excitation in the UV range.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aerogels and thermal insulation · Mesoporous Materials and Catalysis · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Jeffery GH, Bassett J, Mendham J, Denney RC (1989) Vogel’s textbook of quantitative chemical analysis. John Wiley & Sons, Inc, New York 5:696
2. Tang CW, Vanslyke SA (1987) Organic electroluminescent diodes. Appl Phys Lett 51:913–91510.1063/1.98799 ↗
3. Pérez-Bolívar C, Takizawa S-y, Nishimura G, Montes VA, Anzenbacher P (2011) High-efficiency tris(8-hydroxyquinoline)aluminum (Alq3) complexes for organic white-light-emitting diodes and solid-state lighting. Chem Eur J 17:9076–908210.1002/chem.201100707 ↗
4. Lermontov SA, Velikokhat’ko TN, Zavel’skii VO (2002) Aluminium 8-hydroxyquinolate, a new catalyst for CO2 reactions with epoxides. Russ J Gen Chem 72:1492–149310.1023/A:1021615021395 ↗
5. Cölle M, Gmeiner J, Milius W et al. (2003) Preparation and characterization of blue-luminescent tris(8-hydroxyquinoline)aluminium (Alq3). Adv Funct Mater 13:108–11210.1002/adfm.200390015 ↗
6. Cölle M, Brütting W (2004) Thermal, structural and photophysical properties of the organic semiconductor Alq3. Phys Status Solidi 201:1095–111510.1002/pssa.200404341 ↗
7. Weaver MR, Harris JM (1989) In situ fluorescence studies of aluminium ion complexation by 8-hydroxyquinoline covalently bound to silica. Anal Chem 61:1001–101010.1021/ac00184a017 ↗
8. Li N, Li X, Wang W et al. (2006) Blue-shifting photoluminescence of Tris (8-hydroxyquinoline) aluminium encapsulated in the channel of functionalized mesoporous silica SBA-15. Mater Chem Phys 100:128–13110.1016/j.matchemphys.2005.12.020 ↗
9. Tagaya M, Ogawa M (2006) Luminescence of tris(8-quinolinato)aluminum(III) (Alq3) adsorbed into mesoporous silica. Chem Lett 35:108–10910.1246/cl.2006.108 ↗
10. Tagaya M, Ogawa M (2008) Possible pore size effects on the state of tris(8-quinolinato)aluminum(III) (Alq3) adsorbed in mesoporous silicas and their temperature dependence. Phys Chem Chem Phys 10:6849–685510.1039/b807593j ↗
11. Xu C, Xue Q, Ba L et al. (2001) Spectral behavior of 8-hydroxyquinoline aluminium in nanometer-sized holes of porous alumina. Chin Sci Bull 46:1839–184110.1007/BF02900564 ↗
12. Xu C, Xue Q, Zhong Y et al. (2002) Photoluminescent blue-shift of organic molecules in nanometre pores. Nanotechnology 13:47–5010.1088/0957-4484/13/1/310 ↗
13. Huang GS, Wu XL, Xie Y et al. (2005) Photoluminescence from 8-hydroxy quinoline aluminium embedded in porous anodic alumina membrane. Appl Phys Lett 87:1–3
14. Mohammadpour A, Utkin I, Bodepudi SC et al. (2013) Photophysics and energy transfer studies of Alq3 confined in the voids of nanoporous anodic alumina. J Nanosci Nanotechnol 13:2647–265510.1166/jnn.2013.7348 ↗
15. Yamaguchi S, Matsui K (2016) Formation and entrapment of tris(8-hydroxyquinoline)aluminium from 8-hydroxyquinoline in anodic porous alumina. Materials 9:71510.3390/ma9090715 ↗
16. Kistler SS (1931) Coherent expanded-aerogels. J Phys Chem 36:52–6410.1021/j150331a003 ↗
17. Hüsing N, Schubert U (1998) Aerogels—airy materials: chemistry, structure and properties. Angew Chem Int Ed 37:22–4510.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO;2-I ↗
18. Du A, Zhou B, Zhang Z, Shen J (2013) A special material or a new state of matter: a review and reconsideration of the aerogel. Materials 6:941–96810.3390/ma6030941 ↗
19. Qin G, Guo S (2001) Preparation of RF organic aerogels and carbon aerogels by alcoholic sol–gel process. Carbon 39:1935–193710.1016/S0008-6223(01)00162-2 ↗
20. Shimizu T, Kanamori K, Maeno A et al. (2016) Transparent, highly insulating polyethyl- and polyvinylsilsesquioxane aerogels: mechanical improvements by vulcanization for ambient pressure drying. Chem Mater 28:6860–686810.1021/acs.chemmater.6b01936 ↗
21. Pierre AC, Pajonk GM (2002) Chemistry of aerogels and their applications. Chem Rev 102:4243–426510.1021/cr0101306 ↗
22. Corma A, Garcia H (2006) Silica-bound homogenous catalysts as recoverable and reusable catalysts in organic synthesis. Adv Synth Catal 348:1391–141210.1002/adsc.200606192 ↗
23. Lermontov SA, Straumal EA, Mazilkin AA et al. (2016) How to tune the alumina aerogels structure by the variation of a supercritical solvent. evolution of the structure during heat treatment. J Phys Chem C 120:3319–332510.1021/acs.jpcc.5b10461 ↗
24. Gutzov S, Danchova N, Kirilova R et al. (2017) Preparation and luminescence of silica aerogel composites containing an europium (III) phenanthroline nitrate complex. J Lumin 183:108–11210.1016/j.jlumin.2016.11.029 ↗
25. Ziegler C, Wolf A, Liu W et al. (2017) Modern inorganic aerogels. Angew Chem 56:13200–1322110.1002/anie.201611552 ↗
26. Baumann TF, Gash AE, Chinn SC et al. (2005) Synthesis of high-surface-area alumina aerogels without the use of alkoxide precursors. Chem Mater 17:395–40110.1021/cm048800m ↗
27. Chalmers RA, Basit MA (1967) A critical study of 8-hydroxyquinoline as a gravimetric reagent for aluminium. Analyst 92:680–68410.1039/an9679200680 ↗
28. Do DD (1998) Adsorption analysis: equilibrium and kinetics. Imperial College Press, London10.1142/9781860943829 ↗
29. Nakamoto K (1977) Infrared and Raman spectra of inorganic and coordination compounds. Wiley, New York
30. Tobin MC (1960) The infrared spectrum of propylene oxide. Spectrochim Acta 16:1108–111010.1016/0371-1951(60)80153-1 ↗
31. Socrates G (2004) Infrared and Raman characteristic group frequencies: Tables and Charts, 3rd edn. Wiley, New York
32. Huang GS, Wu XL, Xie Y et al. (2005) Photoluminescence from 8-hydroxy quinoline aluminum embedded in porous anodic alumina membrane. Appl Phys Lett 87:15191010.1063/1.2099522 ↗
33. Binnemans K (2009) Lanthanide-based luminescent hybrid materials. Chem Rev 109:4283–437410.1021/cr8003983 ↗