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MnO2/CNT Supported Pt and PtRu Nanocatalysts for Direct Methanol Fuel Cells
Abstract
Pt/MnO2/carbon nanotube (CNT) and PtRu/MnO2/CNT nanocomposites were synthesized by successively loading hydrous MnO2 and Pt (or PtRu alloy) nanoparticles on CNTs and were used as anodic catalysts for direct methanol fuel cells (DMFCs). The existence of MnO2 on the surface of CNTs effectively increases the proton conductivity of the catalyst, which then could remarkably improve the performance of the catalyst in methanol electro-oxidation. As a result, Pt/MnO2/CNTs show higher electrochemical active surface area and better methanol electro-oxidation activity, compared with Pt/CNTs. As PtRu alloy nanoparticles were deposited on the surface of MnO2/CNTs instead of Pt, the PtRu/MnO2/CNT catalyst shows not only excellent electro-oxidation activity to methanol with forward anodic peak current density of 901 A/gPt but also good CO oxidation ability with lower preadsorbed CO oxidation onset potential (0.33 V vs Ag/AgCl) and peak potential (0.49 V vs Ag/AgCl) at room temperature.
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Cited by
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Li, Q., Lu, X.-F., Xu, H., Tong, Y.-X., & Li, G.-R. (2014) · ACS Applied Materials & Interfaces · doi:10.1021/am405271q · Cited by 107
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Metadata
- Authors
- Zhou, C., Wang, H., Peng, F., Liang, J., Yu, H., & Yang, J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-04-29
- Volume
- 25
- Issue
- 13
- Pages
- 7711-7717
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2009649213
- Cited by
- 174
- References
- 0
- FWCI
- 4.99
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: MnO2/CNT Supported Pt and PtRu Nanocatalysts for Direct Methanol Fuel Cells. https://app.cochat.ai/papers/10.1021/la900250w
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- Zhou, C., Wang, H., Peng, F., Liang, J., Yu, H., & Yang, J. (2009). MnO2/CNT Supported Pt and PtRu Nanocatalysts for Direct Methanol Fuel Cells. Langmuir. https://doi.org/10.1021/la900250w
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