A General Method for Multimetallic Platinum Alloy Nanowires as Highly Active and Stable Oxygen Reduction Catalysts

Bu, Lingzheng; Ding, Jiabao; Guo, Shaojun; Zhang, Xu; Su, Dong; Zhu, Xing; Yao, Jianlin; Guo, Jun; Lü, Gang; Huang, Xiaoqing

doi:10.1002/adma.201502725

Cited by 299 publications

(231 citation statements)

References 49 publications

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“…Therefore, the main issue of PtM NWs for ORR is the trade-off between activity and durability, making them impractical for fuel cell devices. In this regard, creating a new class of PtM NWs with high Pt utilization, catalytic activity, and durability is highly desirable, but remains a great challenge [74,75,93]. One representative work in this field was conducted by Li et al [71].…”

Section: D Structure With High-index Facetsmentioning

confidence: 99%

Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Tian

Yang

et al. 2018

Electrochem. Energ. Rev.

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Recent progresses in proton exchange membrane fuel cell electrocatalysts are reviewed in this article in terms of cathodic and anodic reactions with a focus on rational design. These designs are based around gaining active sites using model surface studies and include high-index faceted Pt and Pt-alloy nanocrystals for anodic electrooxidation reactions as well as Pt-based alloy/core-shell structures and carbon-based non-precious metal catalysts for cathodic oxygen reduction reactions (ORR). High-index nanocrystals, alloy nanoparticles, and support effects are highlighted for anodic catalysts, and current developments in ORR electrocatalysts with novel structures and different compositions are emphasized for cathodic catalysts. Active site structures, catalytic performances, and stability in fuel cells are also reviewed for carbon-based non-precious metal catalysts. In addition, further developmental perspectives and the current status of advanced fuel cell electrocatalysts are provided.

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Section: D Structure With High-index Facetsmentioning

confidence: 99%

Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Tian

Yang

et al. 2018

Electrochem. Energ. Rev.

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“…In the past decade, various experimental methods have been developed to synthesize sizedependent, high catalytic performance noble metal-based nanocomposites with diverse morphologies, such as polyhedron, concave, wire, plate, belt/ribbon, dendrite/branch and cage/frame structures [9][10][11][12][13][14][15][16][17][18][19][20][21]. Smaller size means higher surface-area-to-volume ratio, higher atomic utilization efficiency and more catalytic active sites.…”

Section: à2mentioning

confidence: 99%

“…Different noble metals polyhedrons/ concave expose atoms with different coordination numbers, thus have different surface energy and exhibit different catalytic performances [29][30][31]. 1D (wire) and 2D (plate, belt/ ribbon) noble metal-based nanostructures have high surface area (high atom utilization efficiency), high conductivity and large interfacial area contacting with the support in electrochemical reactions [12,15,32]. Dendrite and branch structures not only exhibit large surface area and high active sites, but also significantly relieve the aggregation happened in electrocatalytic stability test [9,33,34].…”

Section: à2mentioning

confidence: 99%

Noble Metal-Based Nanocomposites for Fuel Cells

Rong¹,

Zhang²,

Muhammad³

et al. 2018

Novel Nanomaterials - Synthesis and Applications

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Noble metal-based nanocomposites are attractive for a rich variety of electrocatalytic applications as they can exhibit not only a combination of the properties associated with each component but also synergy due to a strong coupling between different constituents. Using noble metal as the base component, a plenty of methods have been recently demonstrated for the synthesis of noble metal-based nanocomposites with novel structures (e.g., alloys, core-shell, skin and 1D/2D structures). In this chapter, an account of recent advances of synthetic approaches to noble metal-based nanocomposites with controlled structures, compositions and sizes are reviewed. The relationship between structures and electrochemical properties of these nanocomposites in fuel cell field is discussed. The potential future directions of research in the field are also addressed.

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“…One of the most promising strategies is the introduction of non-precious 3d transition metals to form MPt bimetallic electrocatalysts (M=Fe, Co, and Ni) [4][5][6][7]. These MPt electrocatalysts with different shapes are proved to be a potential route for mitigating the cost as well as enhancing their catalytic performance [8,9]. This enhancement was attributed to the lattice contraction and downshift of the d-band center of Pt in the bimetallic structures [10].…”

Section: Introductionmentioning

confidence: 99%

Nanomagnetic CoPt truncated octahedrons: facile synthesis, superior electrocatalytic activity and stability for methanol oxidation

et al. 2016

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Nanomagnetic CoPt truncated octahedral nanoparticles (TONPs) were successfully synthesised through a facile one-pot strategy. These single crystal CoPt TONPs with an average size of about 8 nm exhibit excellent electrocatalytic performance of both activity and stability for methanol oxidation reaction (MOR). The mass and specific activities of CoPt TONPs is 8 and 6 times higher than that of standard commercial Pt/C, respectively. After accelerated durability test (ADT), the loss of electrochemical surface area (ECSA) for CoPt TONPs is only 18.5%, which is significantly less than that of commercial Pt/C (68.2%), indicating that CoPt TONPs possess much better stability than commercial Pt/C in the prolonged operation. The Curie temperature of CoPt TONPs down to 8 nm is as high as 350 K with weak ferromagntism at room temperature (RT), which is greatly valuable for recycling in the eletrocatalytic applications.

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A General Method for Multimetallic Platinum Alloy Nanowires as Highly Active and Stable Oxygen Reduction Catalysts

Cited by 299 publications

References 49 publications

Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Noble Metal-Based Nanocomposites for Fuel Cells

Nanomagnetic CoPt truncated octahedrons: facile synthesis, superior electrocatalytic activity and stability for methanol oxidation

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