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Issue 43, 2015
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One-step synthesis of carbon-supported foam-like platinum with enhanced activity and durability

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Abstract

Carbon black nanoparticles localized in-between liposomal bi-layers provide a unique reaction environment that permits one-step synthesis of carbon-supported foam-like platinum (Pt foam/C) in aqueous solution under ambient conditions. The obtained Pt foam/C was readily purified by simple washing with water and chloroform at room temperature. Unlike commercial Pt/C composed of quasi-spherical nanoparticles, Pt foam/C consists of convoluted dendritic nanosheets. Interestingly, Pt foam/C demonstrated both improved durability and activity toward oxygen reduction reaction (ORR). The improved durability is because of the formation of metastable nano-holes among dendritic branches of Pt foam/C under ripening, preserving the surface area. The activity enhancement of Pt foam/C can be attributed to predominantly exposed Pt {1,1,0} planes that possess the highest ORR activity among all low-indexed Pt crystalline planes. Nano-scale Pt primarily enclosed by {1,1,0} planes has not been reported previously.

Graphical abstract: One-step synthesis of carbon-supported foam-like platinum with enhanced activity and durability

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Supplementary files

Article information


Submitted
27 Jan 2013
Accepted
28 Feb 2013
First published
01 Mar 2013

J. Mater. Chem. A, 2015,3, 21562-21568
Article type
Paper

One-step synthesis of carbon-supported foam-like platinum with enhanced activity and durability

S. Li, H. Li, Y. Zhang, R. M. Garcia, J. Li, Y. Xie, J. Yin, M. Li, J. Wang, J. A. Shelnutt, T. Zhang and Y. Song, J. Mater. Chem. A, 2015, 3, 21562
DOI: 10.1039/C3TA10406K

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