Synthesis of pt-ni alloy nanocrystals with high-index facets and enhanced electrocatalytic properties

Xiling Xu; Xin Zhang; Hui Sun; Ying Yang; Xiaoping Dai; Jinsen Gao; Xueyong Li; Pengfang Zhang; Hong Hui Wang; Neng Fei Yu; Shi Gang Sun

doi:10.1002/anie.201406497

Synthesis of pt-ni alloy nanocrystals with high-index facets and enhanced electrocatalytic properties

Xiling Xu, Xin Zhang, Hui Sun, Ying Yang, Xiaoping Dai, Jinsen Gao, Xueyong Li, Pengfang Zhang, Hong Hui Wang, Neng Fei Yu, Shi Gang Sun

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

204 Scopus citations

Abstract

The shape-controlled synthesis of multicomponent metal nanocrystals (NCs) bounded by high-index facets (HIFs) is of significant importance in the design and synthesis of high-activity catalysts. We report herein the preparation of Pt-Ni alloy NCs by tuning their shape from concave-nanocubic (CNC) to nanocubic and hexoctahedral (HOH). Owing to the synergy of the HIFs and the electronic effect of the Pt-Ni alloy, the as-prepared CNC and HOH Pt-Ni alloy NCs exhibited excellent catalytic properties for the electrooxidation of methanol and formic acid, as well as for the oxygen reduction reaction (ORR).

Original language	English
Pages (from-to)	12522-12527
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	53
Issue number	46
DOIs	https://doi.org/10.1002/anie.201406497
State	Published - 10 Nov 2014
Externally published	Yes

Keywords

Alloys
Electrocatalysis
Electrooxidation
Nanocrystals
Oxygen reduction reaction

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10.1002/anie.201406497

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title = "Synthesis of pt-ni alloy nanocrystals with high-index facets and enhanced electrocatalytic properties",

abstract = "The shape-controlled synthesis of multicomponent metal nanocrystals (NCs) bounded by high-index facets (HIFs) is of significant importance in the design and synthesis of high-activity catalysts. We report herein the preparation of Pt-Ni alloy NCs by tuning their shape from concave-nanocubic (CNC) to nanocubic and hexoctahedral (HOH). Owing to the synergy of the HIFs and the electronic effect of the Pt-Ni alloy, the as-prepared CNC and HOH Pt-Ni alloy NCs exhibited excellent catalytic properties for the electrooxidation of methanol and formic acid, as well as for the oxygen reduction reaction (ORR).",

keywords = "Alloys, Electrocatalysis, Electrooxidation, Nanocrystals, Oxygen reduction reaction",

author = "Xiling Xu and Xin Zhang and Hui Sun and Ying Yang and Xiaoping Dai and Jinsen Gao and Xueyong Li and Pengfang Zhang and Wang, {Hong Hui} and Yu, {Neng Fei} and Sun, {Shi Gang}",

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doi = "10.1002/anie.201406497",

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T1 - Synthesis of pt-ni alloy nanocrystals with high-index facets and enhanced electrocatalytic properties

AU - Xu, Xiling

AU - Zhang, Xin

AU - Sun, Hui

AU - Yang, Ying

AU - Dai, Xiaoping

AU - Gao, Jinsen

AU - Li, Xueyong

AU - Zhang, Pengfang

AU - Wang, Hong Hui

AU - Yu, Neng Fei

AU - Sun, Shi Gang

PY - 2014/11/10

Y1 - 2014/11/10

N2 - The shape-controlled synthesis of multicomponent metal nanocrystals (NCs) bounded by high-index facets (HIFs) is of significant importance in the design and synthesis of high-activity catalysts. We report herein the preparation of Pt-Ni alloy NCs by tuning their shape from concave-nanocubic (CNC) to nanocubic and hexoctahedral (HOH). Owing to the synergy of the HIFs and the electronic effect of the Pt-Ni alloy, the as-prepared CNC and HOH Pt-Ni alloy NCs exhibited excellent catalytic properties for the electrooxidation of methanol and formic acid, as well as for the oxygen reduction reaction (ORR).

AB - The shape-controlled synthesis of multicomponent metal nanocrystals (NCs) bounded by high-index facets (HIFs) is of significant importance in the design and synthesis of high-activity catalysts. We report herein the preparation of Pt-Ni alloy NCs by tuning their shape from concave-nanocubic (CNC) to nanocubic and hexoctahedral (HOH). Owing to the synergy of the HIFs and the electronic effect of the Pt-Ni alloy, the as-prepared CNC and HOH Pt-Ni alloy NCs exhibited excellent catalytic properties for the electrooxidation of methanol and formic acid, as well as for the oxygen reduction reaction (ORR).

KW - Alloys

KW - Electrocatalysis

KW - Electrooxidation

KW - Nanocrystals

KW - Oxygen reduction reaction

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U2 - 10.1002/anie.201406497

DO - 10.1002/anie.201406497

M3 - 文章

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VL - 53

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 46

ER -

Synthesis of pt-ni alloy nanocrystals with high-index facets and enhanced electrocatalytic properties

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Keywords

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