发明申请
US20120124899A1 FUEL ADDITIVE CONTAINING LATTICE ENGINEERED CERIUM DIOXIDE NANOPARTICLES
审中-公开
燃料添加剂包含工程二氧化碳纳米颗粒
- 专利标题: FUEL ADDITIVE CONTAINING LATTICE ENGINEERED CERIUM DIOXIDE NANOPARTICLES
- 专利标题(中): 燃料添加剂包含工程二氧化碳纳米颗粒
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申请号: US13140648申请日: 2008-12-17
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公开(公告)号: US20120124899A1公开(公告)日: 2012-05-24
- 发明人: Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Linda Langner , Kenneth J. Reed
- 申请人: Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Linda Langner , Kenneth J. Reed
- 专利权人: CERION TECHNOLOGY, INC.
- 当前专利权人: CERION TECHNOLOGY, INC.
- 国际申请: PCT/US08/87133 WO 20081217
- 主分类号: C10L1/12
- IPC分类号: C10L1/12 ; B01J23/10
摘要:
A process for making cerium dioxide nanoparticles containing at least one transition metal (M) utilizes a suspension of cerium hydroxide nanoparticles prepared by mechanical shearing of an aqueous mixture containing an oxidant in an amount effective to enable oxidation of cerous ion to ceric ion, thereby forming a product stream that contains transition metal-containing cerium dioxide nanoparticles, Ce1-xMxO2, wherein “x” has a value from about 0.3 to about 0.8. The nanoparticles thus obtained have a cubic fluorite structure, a mean hydrodynamic diameter in the range of about 1 nm to about 10 nm, and a geometric diameter of less than about 4 nm. The transition metal-containing crystalline cerium dioxide nanoparticles can be used to prepare a dispersion of the particles in a nonpolar medium.