Please use this identifier to cite or link to this item:
|Title:||Carbon-supported pseudo-core-shell pd-pt nanoparticles for ORR with and without methanol|
|Citation:||Yang, J., Lee, J.Y., Zhang, Q., Zhou, W., Liu, Z. (2008). Carbon-supported pseudo-core-shell pd-pt nanoparticles for ORR with and without methanol. Journal of the Electrochemical Society 155 (7) : B776-B781. ScholarBank@NUS Repository. https://doi.org/10.1149/1.2926609|
|Abstract:||Carbon-supported Pd-rich pseudo-core-shell Pd-Pt (Pd@Pt/C) nanoparticles, with Pt coverage close to a monolayer, were prepared from a simple galvanic replacement reaction between Pd/C particles and PtCl 4 2- at 100°C. The pseudo-core-shell architecture was confirmed by extensive microstructural characterization techniques. The binding energy shifts in the Pt 4f X-ray photoelectron spectra, in particular, suggest an electron exchange between Pd and Pt, and possible strain effects in Pt caused by the underlying Pd core. The activity of the pseudo-core-shell nanoparticles in the oxygen reduction reaction (ORR) was studied in acidic solutions with and without methanol. The electrocatalysts prepared as such were active for ORR at room temperature, even in the presence of 0.1 M methanol. The pseudo-core-shell Pd70 @ Pt30 catalyst, in particular, compared rather favorably with a Pt/C catalyst with twice the Pt mass loading in terms of the ORR activity, cost, and methanol tolerance. © 2008 The Electrochemical Society.|
|Source Title:||Journal of the Electrochemical Society|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 22, 2018
WEB OF SCIENCETM
checked on May 15, 2018
checked on May 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.