Arroyo-Ramirez, L. and Raptis, R. G. and Cabrera, C. R.. (2013) Surface analysis and electrochemical characterization of palladium-cobalt nanoring formation from molecular precursor, Et3NH (2) CoPd2(mu-4-I-3,5-Me(2)pz)(4)Cl-4 , on highly ordered pyrolytic graphite. Surface and Interface Analysis, 45 (11). pp. 1760-1768.
Full text not available from this repository.Abstract
A Pd2Co precursor, Et3NH(2)CoPd2(-4-I-3,5-Me(2)pz)(4)Cl-4, was used to synthesize palladium-cobalt nanorings and nanoparticles on highly ordered pyrolytic graphite (HOPG) surface. Different types of nanostructures were formed on HOPG surfaces and were controlled by relative humidity (\%RH). These structures included Pd2Co nanorings on HOPG surface by self-assembly with humidity control. The \%RH affects the size and dispersion of the self-formation of the Pd2Co rings on HOPG surfaces. The modified HOPG surface with Pd2Co precursor at 80\%RH has rings of similar sizes, while modification at 76\%RH gives well-formed rings and 70\%RH with smaller diameters. After thermal reduction of the Pd2Co precursor on HOPG, bimetallic nanostructures were formed. X-ray photoelectron spectroscopy, atomic force microscopy and scanning electron microscopy with energy-dispersive X-ray fluorescence spectroscopy techniques were employed to study the composition and morphology of the nanostructures formations on the HOPG surface. Electrochemical characterization of the Pd2Co nanostructures was performed. Moreover, the bimetallic catalyst has electrocatalytic activity for the oxygen reduction reaction. Copyright (c) 2013 John Wiley \& Sons, Ltd.
| Item Type: | Article |
|---|---|
| Additional Information: | ISI Document Delivery No.: 234AMTimes Cited: 0Cited Reference Count: 30Arroyo-Ramirez, Lisandra Raptis, Raphael G. Cabrera, Carlos R.NASA-URC NNX10AQ17A; NASA NNG056678H; NSF-EPSCoR Institute for Functional Nanomaterials EPS-1002410; NSF-NSEC Center for Hierarchical Manufacturing CHM - CMMI -0531171This research was supported in part by NASA-URC Grant No. NNX10AQ17A. The work of L.A.R. was supported by NASA Space Grant Training Grant No. NNG056678H (PR Space Grant) and the NSF-EPSCoR Institute for Functional Nanomaterials Grant No. EPS-1002410. The authors acknowledge the use of the IFN Nanoscopy Facility. The financial support of the NSF-NSEC Center for Hierarchical Manufacturing Grant No. CHM - CMMI -0531171 is gratefully acknowledged.Wiley-blackwellHoboken |
| Uncontrolled Keywords: | pd |
| 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/2207 |
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