One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

Bao Yu Xia; Hao Bin Wu; Nan Li; Ya Yan; Xiong Wen (David) Lou; Xin Wang

doi:10.1002/anie.201411544

One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

Bao Yu Xia, Hao Bin Wu, Nan Li, Ya Yan, Xiong Wen (David) Lou^*, Xin Wang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

465 Citations (Scopus)

Abstract

Three-dimensional (3D) Pt-based alloy nanostructures composed of one-dimensional (1D) nanowires/nanorods have recently attracted significant interest as electrocatalysts. In this work, we report an effective solvothermal method for the direct preparation of 3D Pt-Co nanowire assemblies (NWAs) with tunable composition. The composition- and structure-dependent electrocatalytic performance is thoroughly investigated. Because of the bimetallic synergetic effect and unique structural advantage, the as-prepared 3D Pt₃Co NWA outperforms commercial Pt/carbon and Pt black catalysts and even 3D Pt NWA. The electrochemical results demonstrate that the 3D Pt₃Co NWA is indeed a promising electrocatalyst with enhanced catalytic activity and improved durability for practical electrocatalytic applications. Three-dimensional (3D) Pt-Co alloy nanostructures with tunable composition are synthesized by an effective solvothermal method. The interconnected 3D Pt₃Co nanowire assembly exhibits significantly enhanced electrocatalytic activity and durability compared with commercial Pt based catalysts and a 3D Pt nanowire assembly. This is mainly attributed to the synergetic effects from composition and structural advantages. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original language	English
Pages (from-to)	3797-3801
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	12
Online published	28 Jan 2015
DOIs	https://doi.org/10.1002/anie.201411544
Publication status	Published - 16 Mar 2015
Externally published	Yes

Funding

We acknowledge financial support from the academic research fund AcRF tier 1 (M4011020 RG8/12 and M4011253 RG 7/14), Ministry of Education, Singapore. The support by the Singapore National Research Foundation under its Campus for Research Excellence and Technological Enterprise (CREATE) programme is also acknowledged.

Research Keywords

alloys
electrocatalysis
nanostructures
platinum

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title = "One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties",

abstract = "Three-dimensional (3D) Pt-based alloy nanostructures composed of one-dimensional (1D) nanowires/nanorods have recently attracted significant interest as electrocatalysts. In this work, we report an effective solvothermal method for the direct preparation of 3D Pt-Co nanowire assemblies (NWAs) with tunable composition. The composition- and structure-dependent electrocatalytic performance is thoroughly investigated. Because of the bimetallic synergetic effect and unique structural advantage, the as-prepared 3D Pt3Co NWA outperforms commercial Pt/carbon and Pt black catalysts and even 3D Pt NWA. The electrochemical results demonstrate that the 3D Pt3Co NWA is indeed a promising electrocatalyst with enhanced catalytic activity and improved durability for practical electrocatalytic applications. Three-dimensional (3D) Pt-Co alloy nanostructures with tunable composition are synthesized by an effective solvothermal method. The interconnected 3D Pt3Co nanowire assembly exhibits significantly enhanced electrocatalytic activity and durability compared with commercial Pt based catalysts and a 3D Pt nanowire assembly. This is mainly attributed to the synergetic effects from composition and structural advantages. {\textcopyright} 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

keywords = "alloys, electrocatalysis, nanostructures, platinum",

author = "Xia, {Bao Yu} and Wu, {Hao Bin} and Nan Li and Ya Yan and Lou, {Xiong Wen (David)} and Xin Wang",

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T1 - One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

AU - Xia, Bao Yu

AU - Wu, Hao Bin

AU - Li, Nan

AU - Yan, Ya

AU - Lou, Xiong Wen (David)

AU - Wang, Xin

PY - 2015/3/16

Y1 - 2015/3/16

N2 - Three-dimensional (3D) Pt-based alloy nanostructures composed of one-dimensional (1D) nanowires/nanorods have recently attracted significant interest as electrocatalysts. In this work, we report an effective solvothermal method for the direct preparation of 3D Pt-Co nanowire assemblies (NWAs) with tunable composition. The composition- and structure-dependent electrocatalytic performance is thoroughly investigated. Because of the bimetallic synergetic effect and unique structural advantage, the as-prepared 3D Pt3Co NWA outperforms commercial Pt/carbon and Pt black catalysts and even 3D Pt NWA. The electrochemical results demonstrate that the 3D Pt3Co NWA is indeed a promising electrocatalyst with enhanced catalytic activity and improved durability for practical electrocatalytic applications. Three-dimensional (3D) Pt-Co alloy nanostructures with tunable composition are synthesized by an effective solvothermal method. The interconnected 3D Pt3Co nanowire assembly exhibits significantly enhanced electrocatalytic activity and durability compared with commercial Pt based catalysts and a 3D Pt nanowire assembly. This is mainly attributed to the synergetic effects from composition and structural advantages. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

AB - Three-dimensional (3D) Pt-based alloy nanostructures composed of one-dimensional (1D) nanowires/nanorods have recently attracted significant interest as electrocatalysts. In this work, we report an effective solvothermal method for the direct preparation of 3D Pt-Co nanowire assemblies (NWAs) with tunable composition. The composition- and structure-dependent electrocatalytic performance is thoroughly investigated. Because of the bimetallic synergetic effect and unique structural advantage, the as-prepared 3D Pt3Co NWA outperforms commercial Pt/carbon and Pt black catalysts and even 3D Pt NWA. The electrochemical results demonstrate that the 3D Pt3Co NWA is indeed a promising electrocatalyst with enhanced catalytic activity and improved durability for practical electrocatalytic applications. Three-dimensional (3D) Pt-Co alloy nanostructures with tunable composition are synthesized by an effective solvothermal method. The interconnected 3D Pt3Co nanowire assembly exhibits significantly enhanced electrocatalytic activity and durability compared with commercial Pt based catalysts and a 3D Pt nanowire assembly. This is mainly attributed to the synergetic effects from composition and structural advantages. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KW - alloys

KW - electrocatalysis

KW - nanostructures

KW - platinum

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M3 - RGC 21 - Publication in refereed journal

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JF - Angewandte Chemie - International Edition

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ER -

One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

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