Electrocatalytic properties of hybrid palladium–gold/multi-walled carbon nanotube materials in fuel cell applications

Yuh-Jing Chiou , Kuan-Yuan Chen , Hong-Ming Lin , Wei-Jen Liou , Huey-Wen Liou , She-Huang Wu , Anna Mikolajczuk , Marta Mazurkiewicz , Artur Malolepszy , Leszek Stobinski , Andrzej Borodzinski , Piotr Kedzierzawski , Krzysztof Kurzydłowski , Shu-Hua Chien , Wen-Chang Chen

Abstract

Multi-walled carbon nanotubes (MWCNTs) supported Pd–Au nanoparticles for electrooxidation of formic acid (FA) are prepared and compared with Pd/MWCNTs in this study. The nanocatalysts are prepared by a polyol method, and characterized using X-ray diffraction (XRD), thermogravimetry (TGA), SEM, and field emission transmission electron microscope (FE-TEM). Cyclic voltammetry (CV) is used to examine the catalytic activity towards FA electrooxidation. Controlling the contents of the precursors (PdCl2 and HAuCl4·4H2O), the different weight ratios of Pd–Au can be synthesized to form the various solid solution structures of Pd–Au. TEM image results indicate the average diameter of Pd–Au solid solution particles is about 10–30 nm. The results of electrochemical analysis show that the Au (10 wt.\%)/[Pd/MWCNTs (1:9)](90 wt.\%) hybrid catalysts exhibit the highest catalytic activity and better stability than that of Pd/MWCNTs in FA electrooxidation. The promoting of Pd-based catalyst with Au to form solid solution improves the performance of the catalyst in FA electrooxidation. The newly synthesized electrocatalyst is promising for application in direct formic acid fuel cell (DFAFC).
Author Yuh-Jing Chiou - [Tatung University]
Yuh-Jing Chiou,,
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, Kuan-Yuan Chen - [Tatung University]
Kuan-Yuan Chen,,
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, Hong-Ming Lin - [Tatung University]
Hong-Ming Lin,,
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, Wei-Jen Liou - [Tatung University]
Wei-Jen Liou,,
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, Huey-Wen Liou - [Tatung University]
Huey-Wen Liou,,
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, She-Huang Wu - [Tatung University]
She-Huang Wu,,
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, Anna Mikolajczuk - [Institute of Physical Chemistry of the Polish Academy of Sciences]
Anna Mikolajczuk,,
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, Marta Mazurkiewicz - [Warsaw University of Technology (PW), MNiSW [80]]
Marta Mazurkiewicz,,
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- Politechnika Warszawska
, Artur Malolepszy - [Politechnika Warszawska]
Artur Malolepszy,,
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, Leszek Stobinski - [Institute of Physical Chemistry of the Polish Academy of Sciences]
Leszek Stobinski,,
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et al.`
Journal seriesphysica status solidi (a), ISSN 1862-6319, (0 pkt)
Issue year2011
Vol208
No8
Pages1778–1782
Keywords in Englishelectrocatalysis, formic acid, gold, multi-walled carbon nanotubes, Nanoparticles, Palladium
DOIDOI:10.1002/pssa.201001213
URL http://onlinelibrary.wiley.com/doi/10.1002/pssa.201001213/abstract
Score (nominal)0
Score sourcejournalList
Publication indicators Scopus Citations = 11; WoS Citations = 10
Citation count*14 (2015-04-27)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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