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Single walled carbon nanohorn adsorptive material and method for production thereof

Foreign code F110005254
File No. B39-01WO
Posted date Aug 29, 2011
Country United States of America
Application number 56080804
Gazette No. 20060165992
Gazette No. 8007908
Date of filing May 31, 2004
Gazette Date Jul 27, 2006
Gazette Date Aug 30, 2011
International application number JP2004007848
International publication number WO2004112955
Date of international filing May 31, 2004
Date of international publication Dec 29, 2004
Priority data
  • P2003-174016 (Jun 18, 2003) JP
  • 2004WO-JP07848 (May 31, 2004) WO
Title Single walled carbon nanohorn adsorptive material and method for production thereof
Abstract (US8007908)
A single walled carbon nanohorn adsorptive material which comprises a single walled carbon nanohorn and a lanthanide metal deposited thereon and has methane absorptivity is produced, whereby a single walled carbon nanohorn adsorptive material which can adsorb much methane and is effective as a methane adsorbing material is provided.
Scope of claims [claim1]
1. A single walled carbon nanohorn adsorptive material having methane absorptivity, wherein a lanthanide metal is deposited on a single walled carbon nanohorn.
[claim2]
2. The single walled carbon nanohorn adsorptive material according to claim 1, wherein the lanthanide metal is deposited on the single walled carbon nanohorn in an amount not less than 0.01 mmol and not more than 5 mmol per 1 g of the single walled carbon nanohorn.
[claim3]
3. The single walled carbon nanohorn adsorptive material according to claim 1, wherein the lanthanide metal is any of the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Lu and Tb.
[claim4]
4. The single walled carbon nanohorn adsorptive material according to claim 2, wherein the lanthanide metal is any of the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Lu and Tb.
[claim5]
5. A method for producing a single walled carbon nanohorn adsorptive material, wherein a lanthanide metal is deposited on a single walled carbon nanohorn by suspending a single walled carbon nanohorn in ethanol, adding a predetermined amount of an ethanolic lanthanide nitrate solution, performing sonication, and evaporating to dryness.
[claim6]
6. The method for producing a single walled carbon nanohorn adsorptive material according to claim 5, wherein the single walled carbon nanohorn is oxidized by heating in flowing oxygen before suspending it in ethanol.
  • Inventor, and Inventor/Applicant
  • IIJIMA SUMIO
  • MURATA KATSUYUKI
  • KANEKO KATSUMI
  • YUDASAKA MASAKO
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • NEC
IPC(International Patent Classification)
Reference ( R and D project ) SORST Selected in Fiscal 2002
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