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Single walled carbon nanohorn adsorptive material and method for production thereof

外国特許コード F110005254
整理番号 B39-01WO
掲載日 2011年8月29日
出願国 アメリカ合衆国
出願番号 56080804
公報番号 20060165992
公報番号 8007908
出願日 平成16年5月31日(2004.5.31)
公報発行日 平成18年7月27日(2006.7.27)
公報発行日 平成23年8月30日(2011.8.30)
国際出願番号 JP2004007848
国際公開番号 WO2004112955
国際出願日 平成16年5月31日(2004.5.31)
国際公開日 平成16年12月29日(2004.12.29)
優先権データ
  • 特願2003-174016 (2003.6.18) JP
  • 2004WO-JP07848 (2004.5.31) WO
発明の名称 (英語) Single walled carbon nanohorn adsorptive material and method for production thereof
発明の概要(英語) (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.
特許請求の範囲(英語) [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.
  • 発明者/出願人(英語)
  • IIJIMA SUMIO
  • MURATA KATSUYUKI
  • KANEKO KATSUMI
  • YUDASAKA MASAKO
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • NEC
国際特許分類(IPC)
米国特許分類/主・副
  • 428/408
  • 977/742
参考情報 (研究プロジェクト等) SORST Selected in Fiscal 2002
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