High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction

Xiaoqing Huang; Zipeng Zhao; Liang Cao; Yu Chen; Enbo Zhu; Zhaoyang Lin; Mufan Li; Aiming Yan; Alex Zettl; Y. Morris Wang; Xiangfeng Duan; Tim Mueller; Yu Huang

doi:10.1126/science.aaa8765

High-performance transition metal-doped Pt₃Ni octahedra for oxygen reduction reaction

Xiaoqing Huang, Zipeng Zhao, Liang Cao, Yu Chen, Enbo Zhu, Zhaoyang Lin, Mufan Li, Aiming Yan, Alex Zettl, Y. Morris Wang, Xiangfeng Duan, Tim Mueller, Yu Huang^*

^*Corresponding author for this work

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

1636 Citations (Scopus)

Abstract

Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt₃Ni octahedra supported on carbon with transition metals, termed M-Pt₃Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt₃Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm² and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm² and 0.096 A/mg_Pt). Theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt₃Ni catalyst.

Original language	English
Pages (from-to)	1230-1234
Number of pages	5
Journal	Science
Volume	348
Issue number	6240
DOIs	https://doi.org/10.1126/science.aaa8765
Publication status	Published - 12 Jun 2015
Externally published	Yes

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title = "High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction",

abstract = "Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt3Ni octahedra supported on carbon with transition metals, termed M-Pt3Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt3Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm2 and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm2 and 0.096 A/mgPt). Theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt3Ni catalyst.",

author = "Xiaoqing Huang and Zipeng Zhao and Liang Cao and Yu Chen and Enbo Zhu and Zhaoyang Lin and Mufan Li and Aiming Yan and Alex Zettl and Wang, {Y. Morris} and Xiangfeng Duan and Tim Mueller and Yu Huang",

year = "2015",

month = jun,

day = "12",

doi = "10.1126/science.aaa8765",

language = "English",

volume = "348",

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journal = "Science",

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T1 - High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction

AU - Huang, Xiaoqing

AU - Zhao, Zipeng

AU - Cao, Liang

AU - Chen, Yu

AU - Zhu, Enbo

AU - Lin, Zhaoyang

AU - Li, Mufan

AU - Yan, Aiming

AU - Zettl, Alex

AU - Wang, Y. Morris

AU - Duan, Xiangfeng

AU - Mueller, Tim

AU - Huang, Yu

PY - 2015/6/12

Y1 - 2015/6/12

N2 - Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt3Ni octahedra supported on carbon with transition metals, termed M-Pt3Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt3Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm2 and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm2 and 0.096 A/mgPt). Theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt3Ni catalyst.

AB - Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt3Ni octahedra supported on carbon with transition metals, termed M-Pt3Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt3Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm2 and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm2 and 0.096 A/mgPt). Theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt3Ni catalyst.

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U2 - 10.1126/science.aaa8765

DO - 10.1126/science.aaa8765

M3 - Article

AN - SCOPUS:84931287931

SN - 0036-8075

VL - 348

SP - 1230

EP - 1234

JO - Science

JF - Science

IS - 6240

ER -

High-performance transition metal-doped Pt₃Ni octahedra for oxygen reduction reaction

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