Global to push GA events into
skip to main content

Title: Methods for controlling pore morphology in aerogels using electric fields and products thereof

In one embodiment, an aerogel or xerogel includes column structures of a material having minor pores therein and major pores devoid of the material positioned between the column structures, where longitudinal axes of the major pores are substantially parallel to one another. In another embodiment, a method includes heating a sol including aerogel or xerogel precursor materials to cause gelation thereof to form an aerogel or xerogel and exposing the heated sol to an electric field, wherein the electric field causes orientation of a microstructure of the sol during gelation, which is retained by the aerogel or xerogel. In one approach, an aerogel has elongated pores extending between a material arranged in column structures having structural characteristics of being formed from a sol exposed to an electric field that causes orientation of a microstructure of the sol during gelation which is retained by the elongated pores of the aerogel.
; ; ; ; ;
Issue Date:
OSTI Identifier:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2011 Jul 11
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

Electric-field-induced rupture of polymer-stabilized oil films
journal, October 1999
  • Anklam, M. R.; Saville, D. A.; Prud'homme, R. K.
  • Colloid & Polymer Science, Vol. 277, Issue 10, p. 957-964
  • DOI: 10.1007/s003960050475

Electrophoretic Deposition as a Novel Near Net Shaping Technique for Functionally Graded Biomaterials
journal, January 2005

Engineering the Composition Profile in Functionally Graded Materials Processed by Electrophoretic Deposition
book, March 2006
  • Anne, G.; Vleugels, J.; Biest, O. Van der
  • Innovative Processing and Synthesis of Ceramics, Glasses and Composites IX: Singh/Innovative
  • DOI: 10.1002/9781118408391.ch5

Improved Preparation of Transparent PLZT Ceramics by Electrophoretic Deposition and Hot Isostatic Pressing
book, January 2003
  • Bartscherer, Erik; Braun, Adelina; Wolff, Matthias
  • 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: B: Ceramic Engineering and Science Proceedings
  • DOI: 10.1002/9780470294826.ch25

High surface area carbon aerogel monoliths with hierarchical porosity
journal, July 2008
  • Baumann, Theodore F.; Worsley, Marcus A.; Han, T. Yong-Jin
  • Journal of Non-Crystalline Solids, Vol. 354, Issue 29, p. 3513-3515
  • DOI: 10.1016/j.jnoncrysol.2008.03.006

Template-directed synthesis of periodic macroporous organic and carbon aerogels
journal, December 2004

A review on fundamentals and applications of electrophoretic deposition (EPD)
journal, January 2007

The Use of Electrophoretic Deposition for the Fabrication of Ceramic Matrix Composites
journal, January 2004

Structural Investigation of Resorcinol Formaldehyde and Carbon Aerogels Using SAXS and BET
journal, January 1997
  • Bock, V.; Emmerling, A.; Saliger, R.
  • Journal of Porous Materials, Vol. 4, Issue 4, p. 287-294
  • DOI: 10.1023/A:1009681407649

Contactless Electrofunctionalization of a Single Pore
journal, October 2009
  • Bouchet, Aurélie; Descamps, Emeline; Mailley, Pascal
  • Small, Vol. 5, Issue 20, p. 2297-2303
  • DOI: 10.1002/smll.200900482

12. Transparent Alumina Ceramics with Sub-Microstructure by Means of Electrophoretic Deposition
book, January 2005
  • Braun, Adelina; Wolff, Matthias; Falk, Guido
  • Developments in Advanced Ceramics and Composites: Ceramic Engineering and Science Proceedings, Vol. 26, Issue 8
  • DOI: 10.1002/9780470291283.ch12

Transparent Polycrystalline Alumina Ceramic with Sub-Micrometre Microstructure by Means of Electrophoretic Deposition
journal, April 2006
  • Braun, A.; Falk, G.; Clasen, R.
  • Materialwissenschaft und Werkstofftechnik, Vol. 37, Issue 4, p. 293-297
  • DOI: 10.1002/mawe.200600003

Investigation on the electrophoretic deposition of a FGM piezoelectric monomorph actuator
journal, January 2003
  • Chen, Y. H.; Li, T.; Ma, J.
  • Journal of Materials Science, Vol. 38, Issue 13, p. 2803-2807
  • DOI: 10.1023/A:1024468015242

Anisotropic alignment of non-modified BN nanosheets in polysiloxane matrix under nano pulse width electricity
journal, January 2010
  • Cho, Hong-Baek; Shoji, Makoto; Fujiwara, Takesi
  • Journal of the Ceramic Society of Japan, Vol. 118, Issue 1373, p. 66-69
  • DOI: 10.2109/jcersj2.118.66

Near Net Shaping with Bimodal Powders on Shaped Membranes via EPD
journal, June 2009

Layer-by-layer templated growth of colloidal crystals with packing and pattern control
journal, June 2009
  • Dziomkina, Nina V.; Hempenius, Mark A.; Vancso, G. Julius
  • Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 342, Issue 1-3, p. 8-15
  • DOI: 10.1016/j.colsurfa.2009.03.049

Thermogelation of Al2O3/Y-TZP films produced by electrophoretic co-deposition
journal, September 2004
  • Ferrari, Begoña; Santacruz, Isabel; Nieto, Marı́a Isabel
  • Journal of the European Ceramic Society, Vol. 24, Issue 10-11, p. 3073-3080
  • DOI: 10.1016/j.jeurceramsoc.2003.10.009

Microstructure of Side Chain Liquid Crystalline Polymers and their Alignment Using Electric Fields and Surfaces
journal, July 1993
  • Findlay, R. B.
  • Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol. 231, Issue 1, p. 137-151
  • DOI: 10.1080/10587259308032500

Pore structure of porous ceramics synthesized from water-based slurry by freeze-dry process
journal, January 2001
  • Fukasawa, T.; Deng, Z.-Y.; Ando, M.
  • Journal of Materials Science, Vol. 36, Issue 10, p. 2523-2527
  • DOI: 10.1023/A:1017946518955

3D Particle Assembly in Micro-Scale by Using Electrophoretic Micro-Fabrication Technique
journal, January 2006

Micro-Flow Control and Micropump by Applying Electric Fields through a Porous Membrane
journal, January 2004
  • Hasegawa, Tomiichi; Toga, Shinji; Morita, Makoto
  • JSME International Journal Series B, Vol. 47, Issue 3, p. 557-563
  • DOI: 10.1299/jsmeb.47.557

Functionally graded microceramic components
journal, May 2010

Integrated Preconcentration SDS−PAGE of Proteins in Microchips Using Photopatterned Cross-Linked Polyacrylamide Gels
journal, July 2006
  • Hatch, Anson V.; Herr, Amy E.; Throckmorton, Daniel J.
  • Analytical Chemistry, Vol. 78, Issue 14, p. 4976-4984
  • DOI: 10.1021/ac0600454

Hawley's Condensed Chemical Dictionary
book, March 2007

Reorientation of a liquid crystalline side-chain polymer in electric and magnetic fields investigated by solid-state 1H-NMR
journal, October 1998

Formation process of three-dimensional arrays from silica spheres
journal, May 2003
  • Ishikawa, Keiji; Harada, Hironori; Okubo, Tatsuya
  • AIChE Journal, Vol. 49, Issue 5, p. 1293-1299
  • DOI: 10.1002/aic.690490520

Synthesis and characterizations of monodispersed micron-sized polyaniline composite particles for electrorheological fluid materials
journal, August 2002
  • Jun, Jung-Bae; Lee, Chung-Hyuk; Kim, Jin-Woong
  • Colloid & Polymer Science, Vol. 280, Issue 8, p. 744-750
  • DOI: 10.1007/s00396-002-0680-5

Comparison of Electrical Properties between Fluoroapatite and Hydroxyapatite Materials
journal, January 2001
  • Laghzizil, A.; El Herch, N.; Bouhaouss, A.
  • Journal of Solid State Chemistry, Vol. 156, Issue 1, p. 57-60
  • DOI: 10.1006/jssc.2000.8958

Correlation Between Electrical and Structural Properties of Fluorapatites
journal, January 1999
  • Laghzizil, Aziz; Bouhaouss, Ahmed; Ferhat, Mohammed
  • Phosphorus Research Bulletin, Vol. 10, p. 381-386
  • DOI: 10.3363/prb1992.10.0_381

Memory effects in liquid crystal elastomers
journal, October 1991
  • Legge, C. H.; Davis, F. J.; Mitchell, G. R.
  • Journal de Physique II, Vol. 1, Issue 10, p. 1253-1261
  • DOI: 10.1051/jp2:1991131

The control of crystal orientation in ceramics by imposition of a high magnetic field
journal, April 2006
  • Li, Shuqin; Wu, Cunyou; Sassa, Kensuke
  • Materials Science and Engineering: A, Vol. 422, Issue 1-2, p. 227-231
  • DOI: 10.1016/j.msea.2006.02.004

Controlled Deposition of Crystalline Organic Semiconductors for Field-Effect-Transistor Applications
journal, March 2009
  • Liu, Shuhong; Wang, Wechung Maria; Briseno, Alejandro L.
  • Advanced Materials, Vol. 21, Issue 12, p. 1217-1232
  • DOI: 10.1002/adma.200802202

Electric Field Alignment in Thin Films of Cylinder-Forming Diblock Copolymer
journal, August 2006
  • Matsen, M. W.
  • Macromolecules, Vol. 39, Issue 16, p. 5512-5520
  • DOI: 10.1021/ma060456m

Triply Periodic Bicontinuous Structures as Templates for Photonic Crystals: A Pinch-off Problem
journal, June 2007
  • Moon, J. H.; Xu, Y.; Dan, Y.
  • Advanced Materials, Vol. 19, Issue 11, p. 1510-1514
  • DOI: 10.1002/adma.200700147

Electrophoretic Deposition of Ceramic Powders-Influence of Suspension and Processing Parameters
journal, January 2006

Electrophoretically Deposited Porous Ceramics and their Characterisation by X-Ray Computer Tomography
journal, June 2009

ZrO2 ceramics with aligned pore structure by EPD and their characterisation by X-ray computed tomography
journal, March 2010

Experimental Results on Electrorheology of Liquid Crystalline Polymer Solutions
conference, January 2008
  • Neves, S.; Leal, C. R.; Cidade, M. T.
  • AIP Conference Proceedings, Vol. 1027, Issue 1, Article No. 1429
  • DOI: 10.1063/1.2964598

Infiltration of a 3-D Fabric for the Production of SiC/SiC Composites by Means of Electrophoretic Deposition
journal, June 2009

Preparation of zirconia dental crowns via electrophoretic deposition
journal, November 2006
  • Oetzel, Christian; Clasen, Rolf
  • Journal of Materials Science, Vol. 41, Issue 24, p. 8130-8137
  • DOI: 10.1007/s10853-006-0621-7

Optimization of Electroactive Hydrogel Actuators
journal, December 2009
  • O’Grady, Megan L.; Kuo, Po-ling; Parker, Kevin Kit
  • ACS Applied Materials & Interfaces, Vol. 2, Issue 2, p. 343-346
  • DOI: 10.1021/am900755w

Fabrication of Net-Shape Functionally Graded Composites by Electrophoretic Deposition and Sintering: Modeling and Experimentation
journal, October 2007

Fabrication of Tailored Powder Structures by Electrophoretic Deposition and Sintering
journal, March 2010

Phase Characterization of Partially Stabilized Zirconia by Raman Spectroscopy
journal, August 1985

Gradient profile prediction in functionally graded materials processed by electrophoretic deposition
journal, December 2003

Electrofluorescence of dye-tagged polynucleotides
journal, October 1996

Electrooptical properties of a nematic liquid crystal adsorbed in cellulose membrane
journal, March 2000

Electric-Field-Assisted Assembly of Perpendicularly Oriented Nanorod Superlattices
journal, July 2006
  • Ryan, Kevin M.; Mastroianni, Alex; Stancil, Kimani A.
  • Nano Letters, Vol. 6, Issue 7, p. 1479-1482
  • DOI: 10.1021/nl060866o

Ordered Mesoporous Carbons
journal, May 2001

Electrophoretic Codeposition of La0.6Sr0.4Co0.8Fe0.2O3−δ and Carbon Nanotubes for Developing Composite Cathodes for Intermediate Temperature Solid Oxide Fuel Cells
journal, January 2010
  • Santillán, Maria J.; Caneiro, Alberto; Lovey, Francisco C.
  • International Journal of Applied Ceramic Technology, Vol. 7, Issue 1, p. 30-40
  • DOI: 10.1111/j.1744-7402.2009.02413.x

Electric-Field-Responsive Lithium-Ion Conductors of Propylenecarbonate-Based Columnar Liquid Crystals
journal, April 2009
  • Shimura, Harutoki; Yoshio, Masafumi; Hamasaki, Atsushi
  • Advanced Materials, Vol. 21, Issue 16, p. 1591-1594
  • DOI: 10.1002/adma.200802252

Graded/Gradient Porous Biomaterials
journal, December 2009
  • Miao, Xigeng; Sun, Dan
  • Materials, Vol. 3, Issue 12, p. 26-47
  • DOI: 10.3390/ma3010026

Electrophoretic deposition from aqueous suspensions for near-shape manufacturing of advanced ceramics and glasses—applications
journal, February 2004

Complex and oriented ZnO nanostructures
journal, November 2003
  • Tian, Zhengrong R.; Voigt, James A.; Liu, Jun
  • Nature Materials, Vol. 2, Issue 12, p. 821-826
  • DOI: 10.1038/nmat1014

Block Copolymers in Electric Fields: A Comparison of Single-Mode and Self-Consistent-Field Approximations
journal, January 2006
  • Tsori, Yoav; Andelman, David; Lin, Chin-Yet
  • Macromolecules, Vol. 39, Issue 1, p. 289-293
  • DOI: 10.1021/ma051715v

Anisotropic Electrical Transport Properties of Aligned Carbon Nanotube/PMMA Films Obtained by Electric-Field-Assisted Thermal Annealing
journal, November 2008
  • Valentini, Luca; Bon, Silvia Bittolo; Kenny, Josè M.
  • Macromolecular Materials and Engineering, Vol. 293, Issue 11, p. 867-871
  • DOI: 10.1002/mame.200800218

Laminated and Functionally Graded Ceramics by Electrophoretic Deposition
journal, January 2007

Thick Plate-Shaped Al2O3/ZrO2 Composites with Continuous Gradient Processed by Electrophoretic Deposition
journal, January 2003

Porous polytetrafluoroethylene (PTFE) electret films: porosity and time dependent charging behavior of the free surface
journal, December 2006
  • Wegener, Michael; Wirges, Werner; Tiersch, Brigitte
  • Journal of Porous Materials, Vol. 14, Issue 1, p. 111-118
  • DOI: 10.1007/s10934-006-9015-0

12. Preparation of Polycrystalline Ceramic Compacts Made of Alumina Powder with a Bimodal Particle Size Distribution for Hot Isostatic Pressing
book, January 2003
  • Wolff, Matthias; Braun, Adelina; Bartscherer, Erik
  • 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Vol. 24, Issue 3
  • DOI: 10.1002/9780470294802.ch12

3-D micro-ceramic components from hydrothermally processed carbon nanotube–boehmite powders by electrophoretic deposition
journal, July 2010

Orientation and Dynamics of ZnO Nanorod Liquid Crystals in Electric Fields
journal, May 2010
  • Zorn, Matthias; Tahir, Muhammad Nawaz; Bergmann, Björn
  • Macromolecular Rapid Communications, Vol. 31, Issue 12, p. 1101-1107
  • DOI: 10.1002/marc.201000049