Self-Supported PtAuCu@Cu2O/Pt Hybrid Nanobranch as a Robust Electrocatalyst for the Oxygen Reduction Reaction

Hongyu Gong; Xuecheng Cao; Rafael Gregorio Mendes; Mark H. Rummeli; Jingyu Zhang; Ruizhi Yang

doi:10.1002/celc.201700319

Self-Supported PtAuCu@Cu2O/Pt Hybrid Nanobranch as a Robust Electrocatalyst for the Oxygen Reduction Reaction

Hongyu Gong, Xuecheng Cao, Rafael Gregorio Mendes, Mark H. Rummeli, Jingyu Zhang, Ruizhi Yang

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Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Three-dimensional self-supported metallic structures are attractive for their unique properties of high porosity, good flexibility, large surface area per unit volume, and open-pore structure, which promote their broad application in fuel cells. Here, for the first time, a self-supported PtAuCu alloy and Pt supported over Cu2O, as two effective independent strategies, are combined into a single system, which leads to an enhanced electrochemical performance for the oxygen reduction reaction as compared to the commercial Pt/C. After cyclic voltammetry for 2000 cycles between 0.03 and 1.40 V, PtAuCu@Cu2O/Pt maintains high activity, whereas Pt/C shows a half-wave potential loss of around 20 mV. This work provides an effective strategy for rational design of highly active and stable catalysts for fuel cell applications and beyond.

Original language	English
Pages (from-to)	1554-1559
Number of pages	6
Journal	ChemElectroChem
Volume	4
Issue number	6
DOIs	https://doi.org/10.1002/celc.201700319
Publication status	Published - 1 Jun 2017

Keywords

Pt supported over Cu2O
durability
hybrid electrocatalyst
oxygen reduction reaction
self-supported PtAuCu

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10.1002/celc.201700319

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title = "Self-Supported PtAuCu@Cu2O/Pt Hybrid Nanobranch as a Robust Electrocatalyst for the Oxygen Reduction Reaction",

abstract = "Three-dimensional self-supported metallic structures are attractive for their unique properties of high porosity, good flexibility, large surface area per unit volume, and open-pore structure, which promote their broad application in fuel cells. Here, for the first time, a self-supported PtAuCu alloy and Pt supported over Cu2O, as two effective independent strategies, are combined into a single system, which leads to an enhanced electrochemical performance for the oxygen reduction reaction as compared to the commercial Pt/C. After cyclic voltammetry for 2000 cycles between 0.03 and 1.40 V, PtAuCu@Cu2O/Pt maintains high activity, whereas Pt/C shows a half-wave potential loss of around 20 mV. This work provides an effective strategy for rational design of highly active and stable catalysts for fuel cell applications and beyond.",

keywords = "Pt supported over Cu2O, durability, hybrid electrocatalyst, oxygen reduction reaction, self-supported PtAuCu",

author = "Hongyu Gong and Xuecheng Cao and Mendes, {Rafael Gregorio} and Rummeli, {Mark H.} and Jingyu Zhang and Ruizhi Yang",

year = "2017",

month = jun,

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doi = "10.1002/celc.201700319",

language = "English",

volume = "4",

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journal = "ChemElectroChem",

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T1 - Self-Supported PtAuCu@Cu2O/Pt Hybrid Nanobranch as a Robust Electrocatalyst for the Oxygen Reduction Reaction

AU - Gong, Hongyu

AU - Cao, Xuecheng

AU - Mendes, Rafael Gregorio

AU - Rummeli, Mark H.

AU - Zhang, Jingyu

AU - Yang, Ruizhi

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Three-dimensional self-supported metallic structures are attractive for their unique properties of high porosity, good flexibility, large surface area per unit volume, and open-pore structure, which promote their broad application in fuel cells. Here, for the first time, a self-supported PtAuCu alloy and Pt supported over Cu2O, as two effective independent strategies, are combined into a single system, which leads to an enhanced electrochemical performance for the oxygen reduction reaction as compared to the commercial Pt/C. After cyclic voltammetry for 2000 cycles between 0.03 and 1.40 V, PtAuCu@Cu2O/Pt maintains high activity, whereas Pt/C shows a half-wave potential loss of around 20 mV. This work provides an effective strategy for rational design of highly active and stable catalysts for fuel cell applications and beyond.

AB - Three-dimensional self-supported metallic structures are attractive for their unique properties of high porosity, good flexibility, large surface area per unit volume, and open-pore structure, which promote their broad application in fuel cells. Here, for the first time, a self-supported PtAuCu alloy and Pt supported over Cu2O, as two effective independent strategies, are combined into a single system, which leads to an enhanced electrochemical performance for the oxygen reduction reaction as compared to the commercial Pt/C. After cyclic voltammetry for 2000 cycles between 0.03 and 1.40 V, PtAuCu@Cu2O/Pt maintains high activity, whereas Pt/C shows a half-wave potential loss of around 20 mV. This work provides an effective strategy for rational design of highly active and stable catalysts for fuel cell applications and beyond.

KW - Pt supported over Cu2O

KW - durability

KW - hybrid electrocatalyst

KW - oxygen reduction reaction

KW - self-supported PtAuCu

UR - https://www.mendeley.com/catalogue/e8b9de90-c3e2-32dd-a2c3-a05a344673ba/

U2 - 10.1002/celc.201700319

DO - 10.1002/celc.201700319

M3 - Article

SN - 2196-0216

VL - 4

SP - 1554

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JO - ChemElectroChem

JF - ChemElectroChem

IS - 6

ER -

Self-Supported PtAuCu@Cu2O/Pt Hybrid Nanobranch as a Robust Electrocatalyst for the Oxygen Reduction Reaction

Abstract

Keywords

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