Development of metal decorated carbon nanotubes-supported catalysts for microchannel methanation reactor

Randy L. Vander Wal, Jane Novak, Chung Hsuan Hunag

Research output: Contribution to journalConference articlepeer-review


Multi-walled carbon nanotubes (MWCT) can be used as support of ruthenium and other metal catalyst for the conversion of CO and CO2 to methane. Catalysts were prepared using different metal precursors, ruthenium trichloride (RuCl3.xH2O), cobalt nitrate hexahydrate [Co(NO3)2.6H2O], different impregnation methods and different MWCT surface chemistry. Acid treatment by concentrated nitric acid generated additional carboxylic and hydroxyl functionalities on the nanotubes, resulting to a superior amount of metal decoration and better dispersion of the nanoparticles. The effect of chemical reduction process and the addition of cobalt were investigated and compared with a typical single metal catalytic system. The metal/MCNTs were deposited over a porous substrate for use in the reaction, enhancing heat and mass transfer while maintaining a low-pressure drop. A new microchannel reactor was developed based on the nanofabricated catalysis to evaluate the chemical activity and selectivity towards reduction of mixed carbon oxides.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
StatePublished - 2010
Event239th ACS National Meeting and Exposition - San Francisco, CA, United States
Duration: Mar 21 2010Mar 25 2010

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


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