Carbon Dioxide Reforming of Methane
As-Grown Nanoparticles Immobilized in Single-Wall Carbon Nanotubes for Carbon Dioxide Reforming of Methane
- Building material in, for example, transportation vehicles
- Carbon sequestration
- Hydrogen fuel cells
- Recycle carbon dioxide back to liquid fuels through processes such as Fischer-Tropsch reactions
The nanoparticle catalysts immobilized in SWNTs are a few hundred times better in terms of turnover rate than any other conventional nickel nanoparticles on TiO2 nanoparticles, Al2O3 nanoparticles, and in solid solution substrates. In addition, they last as long as nickel nanoparticle catalysts deposited in solid solution of nanoparticle substrates. This shows that such a nanoparticle catalytic system is superior to any other catalysts available in terms of CRM. In combination with carbon monoxide disproportionation reactions to produce SWNTs, the invented method can convert carbon dioxide and methane into hydrogen and carbon nanotubes, which has not been done before.
ADDITIONAL INFORMATION
File Number:
954
Detailed Description:
Researchers at the University of California, Davis, have developed a method and successfully performed carbon dioxide reforming of methane (CRM) using nanoparticles prepared in the production of single-walled carbon nanotubes (SWNTs). As a result, hydrogen gas and carbon monoxide gas (or syngas) were produced in the process. Upon separation, carbon monoxide can be further converted to SWNTs through disproportionation reactions. This is the first time where these nanoparticles immobilized in SWNTs are used to directly catalyze the reactions other than the growth of the nanotubes themselves. Modification of these nanoparticles prior to and after the growth of SWNTs is expected to further increase the catalytic activity of these nanoparticles.
Other information:
UC Davis Case No: 2008-439
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