Issue 16, 2012

Preparation and electrochemistry of Pd–Ni/Si nanowire nanocomposite catalytic anode for direct ethanolfuel cell

Abstract

A new silicon-based anode suitable for direct ethanol fuel cells (DEFCs) is described. Pd–Ni nanoparticles are coated on Si nanowires (SiNWs) by electroless co-plating to form the catalytic materials. The electrocatalytic properties of the SiNWs and ethanol oxidation on the Pd–Ni catalyst (Pd–Ni/SiNWs) are investigated electrochemically. The effects of temperature and working potential limit in the anodic direction on ethanol oxidation are studied by cyclic voltammetry. The Pd–Ni/SiNWs electrode exhibits higher electrocatalytic activity and better long-term stability in an alkaline solution. It also yields a larger current density and negative onset potential thus boding well for its application to fuel cells.

Graphical abstract: Preparation and electrochemistry of Pd–Ni/Si nanowire nanocomposite catalytic anode for direct ethanol fuel cell

Article information

Article type
Paper
Submitted
24 Dec 2011
Accepted
07 Feb 2012
First published
08 Feb 2012

Dalton Trans., 2012,41, 5055-5059

Preparation and electrochemistry of Pd–Ni/Si nanowire nanocomposite catalytic anode for direct ethanol fuel cell

F. Miao, B. Tao and P. K. Chu, Dalton Trans., 2012, 41, 5055 DOI: 10.1039/C2DT12486F

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