The Effect of Thermal Cycling on the Agglomeration of Fuel Cell Electrocatalysts

Nutthapon Wongyao; Apichai Therdthianwong; Supaporn Therdthianwong

doi:10.4028/www.scientific.net/AMR.1101.340

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1101The Effect of Thermal Cycling on the Agglomeration...

The Effect of Thermal Cycling on the Agglomeration of Fuel Cell Electrocatalysts

Abstract:

The effect of thermal cycling on the agglomeration within 48 hrs of Pt and PtRu electrocatalysts was investigated by using transmission electron microscopy (TEM) and X-ray diffraction (XRD). In comparison with the thermal continuous test, particle agglomeration under the thermal cycle condition was more severe. The PtRu particle size increment was 44.4% and 70.4% for thermal continuous and thermal cycle tests, respectively. These results are in agreement with the direct methanol fuel cells (DMFC) performance test. In the study of the effect of environment, the ethanol solution caused the highest Pt particle agglomeration, followed by methanol and water.

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Periodical:

Advanced Materials Research (Volume 1101)

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340-343

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1101.340

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Online since:

April 2015

Authors:

Nutthapon Wongyao*, Apichai Therdthianwong, Supaporn Therdthianwong

Keywords:

Agglomeration, Electrocatalyst, Fuel Cells, Thermal Cycle Operation

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