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Title: Growth of nanostructures with controlled diameter

Abstract

Transition metal-substituted MCM-41 framework structures with a high degree of structural order and a narrow pore diameter distribution were reproducibly synthesized by a hydrothermal method using a surfactant and an anti-foaming agent. The pore size and the mesoporous volume depend linearly on the surfactant chain length. The transition metals, such as cobalt, are incorporated substitutionally and highly dispersed in the silica framework. Single wall carbon nanotubes with a narrow diameter distribution that correlates with the pore diameter of the catalytic framework structure were prepared by a Boudouard reaction. Nanostructures with a specified diameter or cross-sectional area can therefore be predictably prepared by selecting a suitable pore size of the framework structure.

Inventors:
; ;
Issue Date:
Research Org.:
Yale Univ., New Haven, CT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1176189
Patent Number(s):
7485279
Application Number:
10/726,394
Assignee:
Yale University (New Haven, CT)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
FG02-01ER15183
Resource Type:
Patent
Resource Relation:
Patent File Date: 2003 Dec 02
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats

Pfefferle, Lisa, Haller, Gary, and Ciuparu, Dragos. Growth of nanostructures with controlled diameter. United States: N. p., 2009. Web.
Pfefferle, Lisa, Haller, Gary, & Ciuparu, Dragos. Growth of nanostructures with controlled diameter. United States.
Pfefferle, Lisa, Haller, Gary, and Ciuparu, Dragos. Tue . "Growth of nanostructures with controlled diameter". United States. https://www.osti.gov/servlets/purl/1176189.
@article{osti_1176189,
title = {Growth of nanostructures with controlled diameter},
author = {Pfefferle, Lisa and Haller, Gary and Ciuparu, Dragos},
abstractNote = {Transition metal-substituted MCM-41 framework structures with a high degree of structural order and a narrow pore diameter distribution were reproducibly synthesized by a hydrothermal method using a surfactant and an anti-foaming agent. The pore size and the mesoporous volume depend linearly on the surfactant chain length. The transition metals, such as cobalt, are incorporated substitutionally and highly dispersed in the silica framework. Single wall carbon nanotubes with a narrow diameter distribution that correlates with the pore diameter of the catalytic framework structure were prepared by a Boudouard reaction. Nanostructures with a specified diameter or cross-sectional area can therefore be predictably prepared by selecting a suitable pore size of the framework structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {2}
}

Works referenced in this record:

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