Document Type
Article
Version Deposited
Published Version
Publication Date
1-1-2012
Publication Title
Journal of Nanomaterials
DOI
10.1155/2012/460790
Abstract
High surface area, active catalysts containing dispersed catalytic platinum nanoparticles (dp ∼ 11.6 nm) on a cordierite substrate were fabricated and characterized using TEM, XRD, and SEM. The catalyst activity was evaluated for methanol oxidation. Experimental results were obtained in a miniature-scale continuous flow reactor. Subsequent studies on the effect of catalyst loading and reactor flow parameters are reported. Repeat tests were performed to assess the stability of the catalyst and the extent of deactivation, if any, that occurred due to restructuring and sintering of the particles. SEM characterization studies performed on the postreaction catalysts following repeat tests at reasonably high operating temperatures (∼500◦C corresponding to ∼0.3Tm for bulk platinum) showed evidence of sintering, yet the associated loss of surface area had minimal effect on the overall catalyst activity, as determined from bulk temperature measurements. The potential application of this work for improving catalytic devices including microscale reactors is also briefly discussed.
Recommended Citation
Applegate, J.R., Pearlman, H., and Bakrania, S.D. (2012). Catalysis of methanol-air mixture using platinum nanoparticles for microscale combustion. Journal of Nanomaterials, 2012, 460790.
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Comments
Copyright © 2012 James R. Applegate et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.