Title:
TUNABLE MULTISCALE STRUCTURES COMPRISING BRISTLY, HOLLOW METAL/METAL OXIDE PARTICLES, METHODS OF MAKING AND ARTICLES INCORPORATING THE STRUCTURES
Document Type and Number:
WIPO Patent Application WO/2012/150975
Kind Code:
A3
Abstract:
Hierarchical nanostructures and methods of fabrication. The structures include particles having a metal oxide outer shell with metal oxide wires extending from the outer shell. A multiscale structure according to the invention has particles above and below a critical size wherein the particles above the critical size have wires extending from the surface. These structures may be fabricated from a mixture prepared of relatively smaller metal particles having a size threshold below a threshold for nanowire formation and of relatively larger metal particles having a size above the threshold for nanowire formation. The mixture is oxidized at a selected temperature and for a selected time whereby the relatively smaller particles sinter and nanowires grow on the relatively larger particles thereby creating tunable hierarchical structures with metal-to-metal contact between the particles.
Inventors:
LOVE CHRISTOPHER JAMESON (US)
SMITH J DAVID (US)
VARANASI KRIPA K (US)
SMITH J DAVID (US)
VARANASI KRIPA K (US)
Application Number:
PCT/US2012/023612
Publication Date:
June 27, 2013
Filing Date:
February 02, 2012
Export Citation:
Assignee:
MASSACHUSETTS INST TECHNOLOGY (US)
LOVE CHRISTOPHER JAMESON (US)
SMITH J DAVID (US)
VARANASI KRIPA K (US)
LOVE CHRISTOPHER JAMESON (US)
SMITH J DAVID (US)
VARANASI KRIPA K (US)
International Classes:
B82Y30/00; B22F1/145; B22F1/16; B82Y40/00; C01B13/32; C01G3/02; C01G49/02; C09K5/14; F28D15/04; F28F13/18; H01G9/02; H01M4/36; H01M6/36
Other References:
VILA M ET AL: "Optical and magnetic properties of CuO nanowires grown by thermal oxidation", JOURNAL OF PHYSICS D. APPLIED PHYSICS, IOP PUBLISHING, BRISTOL, GB, vol. 43, no. 13, 7 April 2010 (2010-04-07), pages 135403, XP020171026, ISSN: 0022-3727
CHRISTOPHER J. LOVE ET AL: "Size-dependent thermal oxidation of copper: single-step synthesis of hierarchical nanostructures", NANOSCALE, vol. 3, no. 12, 27 October 2011 (2011-10-27), pages 4972, XP055053492, ISSN: 2040-3364, DOI: 10.1039/c1nr10993f
LIU H ET AL: "One-pot facile synthesis of iron oxide nanowires as high capacity anode materials for lithium ion batteries", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 487, no. 1-2, 13 November 2009 (2009-11-13), pages L24 - L27, XP026742204, ISSN: 0925-8388, [retrieved on 20090819], DOI: 10.1016/J.JALLCOM.2009.08.043
CHRISTOPHER J. LOVE ET AL: "Size-dependent thermal oxidation of copper: single-step synthesis of hierarchical nanostructures", NANOSCALE, vol. 3, no. 12, 27 October 2011 (2011-10-27), pages 4972, XP055053492, ISSN: 2040-3364, DOI: 10.1039/c1nr10993f
LIU H ET AL: "One-pot facile synthesis of iron oxide nanowires as high capacity anode materials for lithium ion batteries", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 487, no. 1-2, 13 November 2009 (2009-11-13), pages L24 - L27, XP026742204, ISSN: 0925-8388, [retrieved on 20090819], DOI: 10.1016/J.JALLCOM.2009.08.043
Attorney, Agent or Firm:
CONNORS, Matthew, E. et al. (40 Broad StreetBoston, MA, US)
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