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A Pt−Ru/Graphitic Carbon Nanofiber Nanocomposite Exhibiting High Relative Performance as a Direct-Methanol Fuel Cell Anode Catalyst
Abstract
Multistep deposition and reactive decomposition of a precursor molecule containing one Pt and one Ru atom on herringbone graphitic carbon nanofibers (GCNFs) affords a Pt−Ru/GCNF nanocomposite containing Pt−Ru alloy nanoclusters widely dispersed on the GCNF support. The nanocomposite has a total metal content of 42 wt % with a bulk Pt/Ru atomic ratio of ca. 1:1, and metal alloy nanoclusters having average particle sizes of 6 nm as calculated from XRD peak widths or 7 nm as measured directly from TEM images. XRD and electrochemical analysis of the nanocomposite as-prepared and stored under ambient conditions reveals the presence of small amounts of Ru metal and oxidized metal species. Comparative testing of this nanocomposite and an unsupported Pt−Ru colloid of similar surface area and catalyst particle size as anode catalysts in a working direct-methanol fuel cell (DMFC) reveals a 50% increase in performance for the Pt−Ru/GCNF nanocomposite. More detailed study of the catalytic performance of metal alloy/GCNF nanocomposites as DMFC anode catalysts appears to be warranted.
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Citations
Cited by
Carbon supports for low-temperature fuel cell catalysts
Antolini, E. (2009) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2008.09.030 · Cited by 1,295
Support materials for PEMFC and DMFC electrocatalysts—A review
Sharma, S., & Pollet, B. G. (2012) · Journal of Power Sources · doi:10.1016/j.jpowsour.2012.02.011 · Cited by 1,206
Understanding and approaches for the durability issues of Pt-based catalysts for PEM fuel cell
Shao, Y., Yin, G., & Gao, Y. (2007) · Journal of Power Sources · doi:10.1016/j.jpowsour.2007.07.004 · Cited by 1,197
Recent advances in activity and durability enhancement of Pt/C catalytic cathode in PEMFC
Yu, X., & Ye, S. (2007) · Journal of Power Sources · doi:10.1016/j.jpowsour.2007.07.048 · Cited by 1,098
Shao, Y., Sui, J., Yin, G., & Gao, Y. (2008) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2007.09.047 · Cited by 763
Metadata
- Authors
- Steigerwalt, E. S., Deluga, G. A., Cliffel, D. E., & Lukehart, C. M.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-08-01
- Volume
- 105
- Issue
- 34
- Pages
- 8097-8101
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2046284343
- Cited by
- 358
- References
- 0
- FWCI
- 18.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: A Pt−Ru/Graphitic Carbon Nanofiber Nanocomposite Exhibiting High Relative Performance as a Direct-Methanol Fuel Cell Anode Catalyst. https://app.cochat.ai/papers/10.1021/jp011633i
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- Steigerwalt, E. S., Deluga, G. A., Cliffel, D. E., & Lukehart, C. M. (2001). A Pt−Ru/Graphitic Carbon Nanofiber Nanocomposite Exhibiting High Relative Performance as a Direct-Methanol Fuel Cell Anode Catalyst. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp011633i
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