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A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction
Joint Authors
Nan, Haoxiong
Tian, Xinlong
Yang, Lijun
Shu, Ting
Song, Huiyu
Liao, Shijun
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-25
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We synthesize a platinum monolayer core-shell catalyst with a ternary alloy nanoparticle core of Pd, Ir, and Ni.
A Pt monolayer is deposited on carbon-supported PdIrNi nanoparticles using an underpotential deposition method, in which a copper monolayer is applied to the ternary nanoparticles; this is followed by the galvanic displacement of Cu with Pt to generate a Pt monolayer on the surface of the core.
The core-shell Pd1Ir1Ni2@Pt/C catalyst exhibits excellent oxygen reduction reaction activity, yielding a mass activity significantly higher than that of Pt monolayer catalysts containing PdIr or PdNi nanoparticles as cores and four times higher than that of a commercial Pt/C electrocatalyst.
In 0.1 M HClO4, the half-wave potential reaches 0.91 V, about 30 mV higher than that of Pt/C.
We verify the structure and composition of the carbon-supported PdIrNi nanoparticles using X-ray powder diffraction, X-ray photoelectron spectroscopy, thermogravimetry, transmission electron microscopy, and energy dispersive X-ray spectrometry, and we perform a stability test that confirms the excellent stability of our core-shell catalyst.
We suggest that the porous structure resulting from the dissolution of Ni in the alloy nanoparticles may be the main reason for the catalyst’s enhanced performance.
American Psychological Association (APA)
Nan, Haoxiong& Tian, Xinlong& Yang, Lijun& Shu, Ting& Song, Huiyu& Liao, Shijun. 2015. A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1069260
Modern Language Association (MLA)
Nan, Haoxiong…[et al.]. A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction. Journal of Nanomaterials No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1069260
American Medical Association (AMA)
Nan, Haoxiong& Tian, Xinlong& Yang, Lijun& Shu, Ting& Song, Huiyu& Liao, Shijun. A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1069260
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069260