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Synthesize flowerlike porous Pt72Ru28 nanoalloys from sub-4.0 nm particles via a green route to enhance the electrocatalytic activity and durability of direct methanol fuel cells.

December 14, 2016Advanced Energy Materials

Highly Active and Durable Pt72Ru28 Porous Nanoalloy Assembled with Sub‐4.0 nm Particles for Methanol Oxidation

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Authors

WZWeiyue ZhaoGuizhou University BNBing NiBeijing Normal University QYQiang YuanNanjing University

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Implication

Materials evaluation demonstrates enhanced activity and long-term durability in porous Pt72Ru28 nanoalloys, suggesting an effective electrocatalyst for direct methanol fuel cells.

Key Points

Synthesize flowerlike porous Pt72Ru28 nanoalloys from sub-4.0 nm particles via a green route to enhance the electrocatalytic activity and durability of direct methanol fuel cells.
Fabricated porous flowerlike Pt72Ru28 bimetallic nanoalloys composed of sub-4.0 nm particles using an environmentally friendly synthesis method.
Assessed electrocatalytic performance for methanol oxidation in acidic media and evaluated long-term durability following 16 months of water immersion relative to commercial Pt black, Pt50Ru50 black, and Ru50Pt50/C.
Pt72Ru28 nanoalloys achieved a peak current density of 10.98 mA cm−2 and mass activity of 1.70 A mg−1 Pt, outperforming Pt black by 4.19/3.54 times, Pt50Ru50 black by 4.27/5.0 times, and Ru50Pt50/C by 5.74/1.73 times.
Retained high electrocatalytic performance after 16 months of water immersion with a peak current density of 7.76 mA cm−2 and mass activity of 1.20 A mg−1 Pt.

Cite This Study

Zhao et al. (2016) studied this question.

synapsesocial.com/papers/6a7070b16c240de38cdbcd99 https://doi.org/10.1002/aenm.201601593

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Implication

Materials evaluation demonstrates enhanced activity and long-term durability in porous Pt72Ru28 nanoalloys, suggesting an effective electrocatalyst for direct methanol fuel cells.

Highly Active and Durable Pt72Ru28 Porous Nanoalloy Assembled with Sub‐4.0 nm Particles for Methanol Oxidation

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Implication

Key Points

Cite This Study

Highly Active and Durable Pt72Ru28 Porous Nanoalloy Assembled with Sub‐4.0 nm Particles for Methanol Oxidation

Discussion

Member takes

Implication

Key Points

Cite This Study

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