Pt and Ru X-ray absorption spectroscopy of PtRu anode catalysts in operating direct methanol fuel cells

Article Abstract:

The in situ X-ray absorption spectroscopy, ex situ X-ray fluorescence and X-ray powder diffraction have helped in the analysis of phase segregated nanostructured PtRu anode catalysts in an operating direct methanol fuel cell. The extended X-ray absorption fine structure analysis has showed that the Ru-O bond lengths are shorter than those reported for Ru-O of ruthenium oxides, indicating that the phases in which the Ru resides in the catalysts are not similar to oxides.

Platinum, X-rays, X-ray diffraction, Spectra, X-ray spectroscopy

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Ru-decorated as model fuel cell electrocatalysts for CO electrooxidation

Article Abstract:

A study is conducted to identify the role of ruthenium promoters in enhancing electrocatalytic activity toward organic fuels for fuel cells, with particularly concerns on the methanol decomposition product, surface CO. Different methods used to prepare Ru-decorated Pt single crystal surfaces while reviewing Ru-decorated Pt nanoparticles along with the methods of characterization and testing of their activity.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Catalysts, Chemical preparations, not elsewhere classified

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Multiwalled carbon nanotube supported PtRu for the anode of direct methanol fuel cells

Article Abstract:

The activity of the methanol oxidation reaction of a multiwalled carbon nanotube (MWCNT)-supported PtRu catalyst is examined and compared with the Vulcan XC-72 carbon-supported catalyst. The direct methanol fuel cell (DMFC) performance test has indicated that the power density yielded using the MWCNT-supported PtRu was 35-39% higher than that using the carbon-supported PtRu.

Electric properties, Platinum compounds, Chemical properties, Nanotubes

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