Platinum Cluster/Nanoparticle on CoO Nanosheets with Coupled Atomic Structure and High Electrocatalytic Durability

H. J. Qiu; J. J. Gao; Y. R. Wen; B. Shang; J. Q. Wang; Xi Lin; Y. Wang

doi:10.1021/acsaem.8b00263

Platinum Cluster/Nanoparticle on CoO Nanosheets with Coupled Atomic Structure and High Electrocatalytic Durability

H. J. Qiu^*
, J. J. Gao
, Y. R. Wen
, B. Shang
, J. Q. Wang
, Xi Lin
, Y. Wang

^*Corresponding author for this work

Chongqing University
Harbin Institute of Technology
Chinese Academy of Sciences
CAS - Ningbo Institute of Material Technology and Engineering

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

21 Scopus citations

Abstract

Seeking electrocatalysts with a low Pt content, high activity, and durability in oxygen reduction reaction (ORR) remains one major challenge for fuel cell applications. Herein, by chemical dealloying of AlCoPt ternary alloys, CoO nanosheets with evenly doped ultrasmall Pt clusters/nanoparticles have been obtained. Thanks to the coherent atomic structure between CoO and Pt, the Pt-doped CoO (Pt/CoO) can work stably for ORR in 0.1 M HClO₄ after tens of thousands of electrochemical cycles and exhibits a 13.5-fold enhancement in the electrochemically active surface area normalized ORR activity over that of commercial Pt/C catalyst.

Original language	English
Pages (from-to)	1840-1845
Number of pages	6
Journal	ACS Applied Energy Materials
Volume	1
Issue number	5
DOIs	https://doi.org/10.1021/acsaem.8b00263
State	Published - 29 May 2018
Externally published	Yes

Keywords

Pt clusters
dealloying
epitaxial growth
fuel cells
oxygen reduction reaction

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10.1021/acsaem.8b00263

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title = "Platinum Cluster/Nanoparticle on CoO Nanosheets with Coupled Atomic Structure and High Electrocatalytic Durability",

abstract = "Seeking electrocatalysts with a low Pt content, high activity, and durability in oxygen reduction reaction (ORR) remains one major challenge for fuel cell applications. Herein, by chemical dealloying of AlCoPt ternary alloys, CoO nanosheets with evenly doped ultrasmall Pt clusters/nanoparticles have been obtained. Thanks to the coherent atomic structure between CoO and Pt, the Pt-doped CoO (Pt/CoO) can work stably for ORR in 0.1 M HClO4 after tens of thousands of electrochemical cycles and exhibits a 13.5-fold enhancement in the electrochemically active surface area normalized ORR activity over that of commercial Pt/C catalyst.",

keywords = "Pt clusters, dealloying, epitaxial growth, fuel cells, oxygen reduction reaction",

author = "Qiu, \{H. J.\} and Gao, \{J. J.\} and Wen, \{Y. R.\} and B. Shang and Wang, \{J. Q.\} and Xi Lin and Y. Wang",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = may,

day = "29",

doi = "10.1021/acsaem.8b00263",

language = "英语",

volume = "1",

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journal = "ACS Applied Energy Materials",

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}

TY - JOUR

T1 - Platinum Cluster/Nanoparticle on CoO Nanosheets with Coupled Atomic Structure and High Electrocatalytic Durability

AU - Qiu, H. J.

AU - Gao, J. J.

AU - Wen, Y. R.

AU - Shang, B.

AU - Wang, J. Q.

AU - Lin, Xi

AU - Wang, Y.

PY - 2018/5/29

Y1 - 2018/5/29

N2 - Seeking electrocatalysts with a low Pt content, high activity, and durability in oxygen reduction reaction (ORR) remains one major challenge for fuel cell applications. Herein, by chemical dealloying of AlCoPt ternary alloys, CoO nanosheets with evenly doped ultrasmall Pt clusters/nanoparticles have been obtained. Thanks to the coherent atomic structure between CoO and Pt, the Pt-doped CoO (Pt/CoO) can work stably for ORR in 0.1 M HClO4 after tens of thousands of electrochemical cycles and exhibits a 13.5-fold enhancement in the electrochemically active surface area normalized ORR activity over that of commercial Pt/C catalyst.

AB - Seeking electrocatalysts with a low Pt content, high activity, and durability in oxygen reduction reaction (ORR) remains one major challenge for fuel cell applications. Herein, by chemical dealloying of AlCoPt ternary alloys, CoO nanosheets with evenly doped ultrasmall Pt clusters/nanoparticles have been obtained. Thanks to the coherent atomic structure between CoO and Pt, the Pt-doped CoO (Pt/CoO) can work stably for ORR in 0.1 M HClO4 after tens of thousands of electrochemical cycles and exhibits a 13.5-fold enhancement in the electrochemically active surface area normalized ORR activity over that of commercial Pt/C catalyst.

KW - Pt clusters

KW - dealloying

KW - epitaxial growth

KW - fuel cells

KW - oxygen reduction reaction

UR - https://www.scopus.com/pages/publications/85055346098

U2 - 10.1021/acsaem.8b00263

DO - 10.1021/acsaem.8b00263

M3 - 文章

AN - SCOPUS:85055346098

SN - 2574-0962

VL - 1

SP - 1840

EP - 1845

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 5

ER -

Platinum Cluster/Nanoparticle on CoO Nanosheets with Coupled Atomic Structure and High Electrocatalytic Durability

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Keywords

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