In situ SAXS investigation of structural changes in soft resorcinol-formaldehyde polymer gels during CO2-drying

Journal of Supercritical Fluids

Volumn 75, Issue , 2013, Pages 112-119

  Czakkel, Orsolya ^a,d   Nagy, Balázs ^a,b   Geissler, Erik ^c   László, Krisztina ^b  

^a EUROPEAN SYNCHROTRON RADIATION FACILITY   (France)

^b BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS   (Hungary)

^c LIPHY   (France)

^d INSTITUT LAUE LANGEVIN   (France)

Author keywords

Drying; Morphology; Organic aerogel; SAXS; Supercritical extraction

Indexed keywords

DEPRESSURIZATIONS; DRYING MEDIUM; DRYING PARAMETERS; DRYING PROCESS; LIQUID CO; MOLECULAR DIFFUSION; ORGANIC AEROGELS; POLYMER GELS; RATE OF INCREASE; RESORCINOL FORMALDEHYDES; RF AEROGELS; SAXS; SITU SAXS; SMALL ANGLE X-RAY SCATTERING; SOLVENT EXCHANGES; STRUCTURAL CHANGE; STRUCTURAL EVOLUTION; SUPERCRITICAL CO; SUPERCRITICAL DRYING; SUPERCRITICAL EXTRACTION; SUPERCRITICAL STATE;

DRYING; FORMALDEHYDE; GELS; LIQUIDS; MORPHOLOGY; PHENOLS; SUPERCRITICAL FLUID EXTRACTION;

CARBON DIOXIDE;

EID: 84872857174     PISSN: 08968446     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.supflu.2012.12.027     Document Type: Article

References (37)

1. O. Czakkel, K. Marthi, E. Geissler, and K. László Influence of drying on the morphology of resorcinol-formaldehyde-based carbon gels Microporous and Mesoporous Materials 86 2005 124 133 (Pubitemid 41580069)
2. A.M. El Khatat, and S. Al-Muhtaseb Advances in tailoring resorcinol-formaldehyde organic and carbon gels Advanced Materials 23 2011 2887 2903
3. B. Babić, B. Kaluderović, L. Vračar, and N. Krstaji Characterization of carbon cryogel synthesized by sol-gel polycondensation and freeze-drying Carbon 42 2004 2617 2624
4. E. Frackowiak, and F. Béguin Carbon materials for the electrochemical storage of energy in capacitors Carbon 39 2001 937 950 (Pubitemid 32303078)
5. L.W. Hrubesh Aerogel applications J. Non-Crystalline Solids 225 1998 335 342 (Pubitemid 128424113)
6. Y. Kibi, T. Saito, M. Kurata, J. Tabuchi, and A. Ochi Fabrication of high-power electric double-layer capacitors J. Power Sources 60 1996 219 224 (Pubitemid 126346868)
7. J. Li, X. Wang, Y. Wang, Q. Huang, C. Dai, S. Gamboa, and P.J. Sebastian Structure and electrochemical properties of carbon aerogels synthesized at ambient temperatures as supercapacitors J. Non-Crystalline Solids 354 2008 19 24 (Pubitemid 350180939)
8. Y. Zhu, H. Hu, W. Li, and X. Zhang Carbon 45 2007 160 165
9. Y.J. Chao, X. Yuan, and Z.F. Ma Preparation and characterization of carbon cryogel (CC) and CC-SiO composite as anode material for lithium-ion battery Electrochimica Acta 53 2008 3468 3473
10. X. Yuan, Y.J. Chao, Z.F. Ma, and X. Deng Preparation and characterization of carbon xerogel (CX) and CX-SiO composite as anode material for lithium-ion battery Electrochemistry Communications 9 2007 2591 2595 (Pubitemid 47405296)
11. H.H. Jung, S.W. Hwang, S.H. Hyun, K.H. Lee, and G.T. Kim Capacitive deionization characteristics of nanostructured carbon aerogel electrodes synthesized via ambient drying Desalination 216 2007 377 385
12. P.H. Kim, J.D. Kwon, and J.S. Kim The impregnated synthesis of polypyrrole into carbon aerogel and its applications to photovoltaic materials Synthetic Metals 142 2004 153 160
13. P. Rana, N. Mohan, and C. Rajagopal Electrochemical removal of chromium from wastewater by using carbon aerogel electrodes Water Research 38 2004 2811 2820 (Pubitemid 38829571)
14. T. Yamamoto, A. Endo, T. Ohmori, and M. Nakaiwa Porous properties of carbon gel microspheres as adsorbents for gas separation Carbon 42 2004 1671 1676
15. Y. Tao, Y. Hattori, A. Matumoto, H. Kanoh, and K. Kaneko K J. Physical Chemistry B 109 2005 194 199
16. S.I. Kim, T. Yamamoto, A. Endo, T. Ohmori, and M. Nakaiwa Adsorption of phenol and reactive dyes from aqueous solution on carbon cryogel microspheres with controlled porous structure Microporous and Mesoporous Materials 96 2006 191 196 (Pubitemid 44636336)
17. C. Lin, and J.A. Ritter Effect of synthesis pH on the structure of carbon xerogels Carbon 35 1997 1271 1278 (Pubitemid 127393485)
18. N. Job, F. Panariello, J. Marien, M. Crine, J.P. Pirard, and A. Léonard Synthesis optimization of organic xerogels produced from convective air-drying of resorcinol-formaldehyde gels J. Non-Crystalline Solids 352 2006 24 34 (Pubitemid 41828419)
19. S. Berthon, O. Barbieri, F. Ehrburger-Dolle, E. Geissler, P. Achard, F. Bley, A.M. Hecht, F. Livet, G.M. Pajonk, N. Pinto, A. Rigacci, and C. Rochas DLS and SAXS investigations of organic gels and aerogels J. Non-Crystalline Solids 285 2001 154 161 (Pubitemid 32529066)
20. D. Fairén-Jiménez, F. Carrasco-Marín, and C. Moreno-Castilla Porosity and surface area of monolithic carbon aerogels prepared using alkaline carbonates and organic acids as polymerization catalysts Carbon 44 2006 2301 2307 (Pubitemid 43927627)
21. T. Yamamoto, N. Nishimura, T. Suzuki, and H. Tamon Effect of drying conditions on mesoporosity of carbon precursors prepared by sol-gel polycondensation and freeze drying Carbon 39 2001 2374 2376 (Pubitemid 33034502)
22. O. Czakkel, E. Geissler, I.M. Szilágyi, E. Székely, and K. László Cu-doped resorcinol-formaldehyde (RF) polymer and carbon aerogels J. Colloid and Interface Science 337 2009 513 522
23. O. Czakkel, E. Geissler, A. Moussaïd, B. Koczka, and K. László Copper-containing resorcinol-formaldehyde networks Microporous and Mesoporous Materials 126 2009 213 221
24. M.F. Kemmere, and T. Meyer Supercritical Carbon Dioxide in Polymer Reaction Engineering 2005 Wiley-VCH Weinheim, Germany
25. 2 medium Microporous and Mesoporous Materials 148 2012 34 42
26. G. Amaral-Labat, A. Szczurek, V. Fierro, E. Masson, A. Pizzi, and A. Celzard Impact of depressurizing rate on the porosity of aerogels Microporous and Mesoporous Materials 152 2012 240 245
27. A. Orlovic, S. Petrovic, and D. Skala Mathematical modeling and simulation of gel drying with supercritical carbon dioxide J. Serbian Chemical Society 70 2005 125 136 (Pubitemid 43166618)
28. 2: effect of extraction time on the end material textural properties J. Supercritical Fluids 66 2012 297 306
29. M.J. Bommel, and A.B. Haan Drying of silica gels with supercritical carbon dioxide J. Materials Science 29 1994 943 948
30. Z.K. Brown, P.J. Fryer, I.T. Norton, and R.H. Bridson Drying of agar gels using supercritical carbon dioxide J. Supercritical Fluids 54 2010 89 95
31. M. Mattenet, K. Lhoste, O. Konovalov, S. Fall, B. Pattier, and A. Gibaud An X-ray thermo-pressure cell for carbon dioxide AIP Conference Proceedings 1234 2010 111 114
32. C. Ponchut, J.M. Rigal, J. Clément, E. Papillon, A. Homs, and S. Petitdemange MAXIPIX, a fast readout photon-counting X-ray area detector for synchrotron applications J. Instrumentation 6 2011 C01069
33. K. Nishikawa, and I. Tanaka Small-angle X-ray scattering study of supercritical carbon dioxide J. Physical Chemistry 100 1996 418 421 (Pubitemid 126817286)
34. H.E. Stanley Introduction to Phase Transitions and Critical Phenomena 1971 Clarendon Press Oxford
35. K. László, K. Kosik, C. Rochas, and E. Geissler Phase transition in poly(N-isopropylacrylamide) hydrogels induced by phenols Macromolecules 36 2003 7771 7776
36. G.W. Scherer Stress in aerogel during depressurization of autoclave. I. Theory J. Sol-Gel Science and Technology 3 1994 127 139
37. T. Woignier, and G.W. Scherer Stress in aerogel during depressurization of autoclave. II. Silica gels J. Sol-Gel Science and Technology 3 1994 141 150