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.

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.

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

Published 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.

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