Comparative Study of Nanoporous Pt,PtRu and PtRuIr Catalysts Using Electrochemical FTIR Spectroscopy
Abstract
In recent years much effort has been put towards developing efficient Pt-based electrocatalysts for applications in fuel cells. With the rising cost of precious metals such as Pt,the need to enhance the activity and to decrease the load of catalysts is prominent. Herein we report on the synthesis and comparative study of nanoporous Pt,PtRu and PtRuIr electrocatalysts. The nanoporous electrodes were fabricated using a hydrothermal method and characterized by scanning electron microscopy (SEM) ,energy dispersive spectroscopy (EDS) ,X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) . The electrocatalytic activity of the fabricated nanopo- rous materials was evaluated using both CO stripping experiments and methanol oxidation reactions,revealing that the addition of Ir greatly improved the activity of the nanoporous PtRu. To decipher the origin of the significant enhancement,in-situ electrochemical FTIR spectroscopy was employed to study the oxidation of methanol on the nanoporous Pt,PtRu and PtRuIr electrodes.
Keywords
electrocatalysis, methanol oxidation, electrochemical FTIR, nanoporous PtRuIr
Publication Date
2010-08-28
Online Available Date
2010-08-28
Revised Date
2010-08-28
Received Date
2010-08-28
Recommended Citation
M. Amussen Robert, Holt-Hindle Peter, Nigro Samantha, Chen Aicheng.
Comparative Study of Nanoporous Pt,PtRu and PtRuIr Catalysts Using Electrochemical FTIR Spectroscopy[J]. Journal of Electrochemistry,
2010
,
16(3): Article 8.
DOI: 10.61558/2993-074X.3354
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol16/iss3/8
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