Issue 18, 2013

Shape-dependent electrocatalytic activity of monodispersed palladium nanocrystals toward formic acid oxidation

Abstract

The catalytic activity of different-shaped and monodispersed palladium nanocrystals, including cubes, octahedra and rhombic dodecahedra, toward the electrochemical oxidation of formic acid has been systematically evaluated in both HClO4 and H2SO4 solutions. Notably, the cubic palladium nanocrystals wholly exposed with {100} facets exhibit the highest activity, while the rhombic dodecahedra with {110} facets show the lowest electrocatalytic performance. Furthermore, compared with HClO4 electrolyte, the catalytic activity is found to be obviously lower in H2SO4 solution likely due to the competitive adsorption of SO42− ions and formic acid on the surface of Pd nanocrystals.

Graphical abstract: Shape-dependent electrocatalytic activity of monodispersed palladium nanocrystals toward formic acid oxidation

Supplementary files

Article information

Article type
Paper
Submitted
16 6 2013
Accepted
28 6 2013
First published
04 7 2013

Nanoscale, 2013,5, 8392-8397

Shape-dependent electrocatalytic activity of monodispersed palladium nanocrystals toward formic acid oxidation

X. Zhang, H. Yin, J. Wang, L. Chang, Y. Gao, W. Liu and Z. Tang, Nanoscale, 2013, 5, 8392 DOI: 10.1039/C3NR03100D

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