Cunci, L. and Rao, C. V. and Velez, C. and Ishikawa, Y. and Cabrera, C. R.. (2013) Graphene-Supported Pt, Ir, and Pt-Ir Nanoparticles as Electrocatalysts for the Oxidation of Ammonia. Electrocatalysis, 4 (1). pp. 61-69.
Full text not available from this repository.Abstract
Graphene oxide nanosheets are used as a support to anchor metal ions and produce graphene-metal nanoparticle hybrids in a sol-gel method. The influence of experimental conditions on the features of graphene-supported Pt, Ir, and Pt-Ir alloy nanoparticles is studied using transmission electron microscopy. Good dispersion of metal nanoparticles on the graphene sheets are observed for the catalysts heat-treated under exposure to N-2 gas. The existence of metal species with zero oxidation state in the prepared catalysts is evident from the X-ray photoelectron spectroscopy. The characteristic X-ray diffraction peaks of Pt are observed for the graphene-supported Pt and Pt-Ir catalysts. Electrochemical activity of the finely dispersed catalysts toward ammonia oxidation is investigated using cyclic voltammetry. The performance increased in the order Ir < Pt a parts per thousand Pt-Ir.
| Item Type: | Article |
|---|---|
| Additional Information: | Times Cited: 0Cunci, Lisandro Rao, Chitturi Venkateswara Velez, Carlos Ishikawa, Yasuyuki Cabrera, Carlos R. |
| Collections: | Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing |
| Depositing User: | Robert Stevens |
| Date Deposited: | 27 Mar 2014 |
| Last Modified: | 27 Mar 2014 20:21 |
| URI: | http://eprints.internano.org/id/eprint/2150 |
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