Title:
METHOD FOR PREPARING NANOTUBES FROM NANOPARTICLES AND NANOTUBES PRODUCED THEREBY
Document Type and Number:
WIPO Patent Application WO2004064993
Kind Code:
A3
Abstract:
The present invention provides a new method for the synthesis of a novel kind of high-surface-area structures. A substrate is provided having pores or channels functionalized with an agent capable of binding nanoparticles, said pores or channels having a cross-sectional size of from about several nanometers to about 100 microns. A colloid solution comprising stabilized nanoparticles and a solvent is passed through said substrate, so as to bind and form more than one layer of nanoparticles in the pores or channels, where the bound nanoparticles spontaneously coalesce to form a coherent material having a substantially hollow structure and being composed of nanoparticles, where said structure follows the shape of said pores or channels in the substrate. The structures properties can be modified by deposition of another material, to form structures coated by the other material on their surface. The structures (with or without modification) can be separated from the porous substrate to obtain a material having a desired structure, for example a tubular structure.
Inventors:
RUBINSTEIN ISRAEL (IL)
VASKEVICH ALEXANDER (IL)
LAHAV MICHAL (IL)
SEHAYEK TALI (IL)
VASKEVICH ALEXANDER (IL)
LAHAV MICHAL (IL)
SEHAYEK TALI (IL)
Application Number:
PCT/IL2004/000061
Publication Date:
September 10, 2004
Filing Date:
January 22, 2004
Export Citation:
Assignee:
YEDA RES & DEV (IL)
RUBINSTEIN ISRAEL (IL)
VASKEVICH ALEXANDER (IL)
LAHAV MICHAL (IL)
SEHAYEK TALI (IL)
RUBINSTEIN ISRAEL (IL)
VASKEVICH ALEXANDER (IL)
LAHAV MICHAL (IL)
SEHAYEK TALI (IL)
International Classes:
B01J23/48; B01J23/89; B01J35/00; B01J35/06; B05D7/22; B22F1/00; B22F3/11; B22F7/00; B01J; (IPC1-7): B05D7/22
Other References:
MARTIN C.R. ET AL: "Investigations of the Transport Properties of Gold Nanotubule Membranes", J. PHYS. CHEM. B, vol. 105, February 2001 (2001-02-01), pages 1925 - 1934, XP002981387
MARTIN C.R.: "Nanomaterials: a membrane-based synthetic approach", SCIENCE, vol. 266, December 1994 (1994-12-01), pages 1961 - 1966, XP002097060
HULTEEN J.C. ET AL: "Introducing chemical transport selectivity into gold nanotubule membranes", J. AM. CHEM. SOC., vol. 120, June 1998 (1998-06-01), pages 6603 - 6604, XP000946541
JIRAGE K.B. ET AL: "Effect of thiol chemisorption on the transport properties of gold nanotubule membranes", ANAL. CHEM., vol. 71, no. 21, November 1999 (1999-11-01), pages 4913 - 4918, XP002981388
HOU Z. ET AL: "Self-Assembled Monolayers on Electroless Gold Impart pH-Responsive Transport of Ions in Porous Membranes", LANGMUIR, vol. 16, December 1999 (1999-12-01), pages 2401 - 2404, XP002981389
MARTIN C.R.: "Nanomaterials: a membrane-based synthetic approach", SCIENCE, vol. 266, December 1994 (1994-12-01), pages 1961 - 1966, XP002097060
HULTEEN J.C. ET AL: "Introducing chemical transport selectivity into gold nanotubule membranes", J. AM. CHEM. SOC., vol. 120, June 1998 (1998-06-01), pages 6603 - 6604, XP000946541
JIRAGE K.B. ET AL: "Effect of thiol chemisorption on the transport properties of gold nanotubule membranes", ANAL. CHEM., vol. 71, no. 21, November 1999 (1999-11-01), pages 4913 - 4918, XP002981388
HOU Z. ET AL: "Self-Assembled Monolayers on Electroless Gold Impart pH-Responsive Transport of Ions in Porous Membranes", LANGMUIR, vol. 16, December 1999 (1999-12-01), pages 2401 - 2404, XP002981389
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