Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction

Jie Wang; Jian Zhang; Guigao Liu; Chongyi Ling; Bo Chen; Jingtao Huang; Xiaozhi Liu; Bing Li; An Liang Wang; Zhaoning Hu; Ming Zhou; Ye Chen; Hongfei Cheng; Jiawei Liu; Zhanxi Fan; Nailiang Yang; Chaoliang Tan; Lin Gu; Jinlan Wang; Hua Zhang

doi:10.1007/s12274-020-2849-y

Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction

Jie Wang, Jian Zhang, Guigao Liu, Chongyi Ling, Bo Chen, Jingtao Huang, Xiaozhi Liu, Bing Li, An Liang Wang, Zhaoning Hu, Ming Zhou, Ye Chen, Hongfei Cheng, Jiawei Liu, Zhanxi Fan, Nailiang Yang, Chaoliang Tan, Lin Gu, Jinlan Wang, Hua Zhang^*

^*Corresponding author for this work

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

35 Citations (Scopus)

Abstract

Crystal phase can greatly affect the physicochemical properties and applications of nanomaterials. However, it still remains a great challenge to synthesize nanostructures with the same composition and morphology but different phases in order to explore the phase-dependent properties and applications. Herein, we report the crystal phase-controlled synthesis of PtCu alloy shells on 4H Au nanoribbons (NRBs), referred to as 4H-Au NRBs, to form the 4H-Au@PtCu core-shell NRBs. By tuning the thickness of PtCu, 4H-PtCu and face-centered cubic (fcc) phase PtCu (fcc-PtCu) alloy shells are successfully grown on the 4H-Au NRB cores. This thickness-dependent phase-controlled growth strategy can also be used to grow PtCo alloys with 4H or fcc phase on 4H-Au NRBs. Significantly, when used as electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media, the 4H-Au@4H-PtCu NRBs show much better EOR performance than the 4H-Au@fcc-PtCu NRBs, and both of them possess superior performance compared to the commercial Pt black. Our study provides a strategy on phase-controlled synthesis of nanomaterials used for crystal phase-dependent applications.

Original language	English
Pages (from-to)	1970–1975
Journal	Nano Research
Volume	13
Issue number	7
Online published	30 May 2020
DOIs	https://doi.org/10.1007/s12274-020-2849-y
Publication status	Published - Jul 2020

Funding

This work was supported by MOE under AcRF Tier 2 (Nos. MOE2016-T2-2-103 and MOE2017-T2-1-162), and NTU under Start-Up Grant (No. M4081296.070.500000) in Singapore. We would like to acknowledge the Facility for Analysis, Characterization, Testing and Simulation, Nanyang Technological University, Singapore, for use of their electron microscopy and X-ray facilities. Z. X. F. and H. Z. thank the financial support from ITC via Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), and acknowledge the start-up grants (Nos. 9380100, 9610480 and 7200651) and grants (Nos. 9610478 and 1886921) in City University of Hong Kong.

Research Keywords

4H hexagonal
crystal phase
ethanol oxidation reaction
face-centered cubic
phase engineering of nanomaterials

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Wang, J., Zhang, J., Liu, G., Ling, C., Chen, B., Huang, J., Liu, X., Li, B., Wang, A. L., Hu, Z., Zhou, M., Chen, Y., Cheng, H., Liu, J., Fan, Z., Yang, N., Tan, C., Gu, L., Wang, J., & Zhang, H. (2020). Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction. Nano Research, 13(7), 1970–1975. https://doi.org/10.1007/s12274-020-2849-y

@article{8fab58e71dc34839851acbc44759bf59,

title = "Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction",

abstract = "Crystal phase can greatly affect the physicochemical properties and applications of nanomaterials. However, it still remains a great challenge to synthesize nanostructures with the same composition and morphology but different phases in order to explore the phase-dependent properties and applications. Herein, we report the crystal phase-controlled synthesis of PtCu alloy shells on 4H Au nanoribbons (NRBs), referred to as 4H-Au NRBs, to form the 4H-Au@PtCu core-shell NRBs. By tuning the thickness of PtCu, 4H-PtCu and face-centered cubic (fcc) phase PtCu (fcc-PtCu) alloy shells are successfully grown on the 4H-Au NRB cores. This thickness-dependent phase-controlled growth strategy can also be used to grow PtCo alloys with 4H or fcc phase on 4H-Au NRBs. Significantly, when used as electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media, the 4H-Au@4H-PtCu NRBs show much better EOR performance than the 4H-Au@fcc-PtCu NRBs, and both of them possess superior performance compared to the commercial Pt black. Our study provides a strategy on phase-controlled synthesis of nanomaterials used for crystal phase-dependent applications. ",

keywords = "4H hexagonal, crystal phase, ethanol oxidation reaction, face-centered cubic, phase engineering of nanomaterials",

author = "Jie Wang and Jian Zhang and Guigao Liu and Chongyi Ling and Bo Chen and Jingtao Huang and Xiaozhi Liu and Bing Li and Wang, {An Liang} and Zhaoning Hu and Ming Zhou and Ye Chen and Hongfei Cheng and Jiawei Liu and Zhanxi Fan and Nailiang Yang and Chaoliang Tan and Lin Gu and Jinlan Wang and Hua Zhang",

year = "2020",

month = jul,

doi = "10.1007/s12274-020-2849-y",

language = "English",

volume = "13",

pages = "1970–1975",

journal = "Nano Research",

issn = "1998-0124",

publisher = "Tsinghua University Press",

number = "7",

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Wang, J, Zhang, J, Liu, G, Ling, C, Chen, B, Huang, J, Liu, X, Li, B, Wang, AL, Hu, Z, Zhou, M, Chen, Y, Cheng, H, Liu, J, Fan, Z, Yang, N, Tan, C, Gu, L, Wang, J & Zhang, H 2020, 'Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction', Nano Research, vol. 13, no. 7, pp. 1970–1975. https://doi.org/10.1007/s12274-020-2849-y

TY - JOUR

T1 - Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction

AU - Wang, Jie

AU - Zhang, Jian

AU - Liu, Guigao

AU - Ling, Chongyi

AU - Chen, Bo

AU - Huang, Jingtao

AU - Liu, Xiaozhi

AU - Li, Bing

AU - Wang, An Liang

AU - Hu, Zhaoning

AU - Zhou, Ming

AU - Chen, Ye

AU - Cheng, Hongfei

AU - Liu, Jiawei

AU - Fan, Zhanxi

AU - Yang, Nailiang

AU - Tan, Chaoliang

AU - Gu, Lin

AU - Wang, Jinlan

AU - Zhang, Hua

PY - 2020/7

Y1 - 2020/7

N2 - Crystal phase can greatly affect the physicochemical properties and applications of nanomaterials. However, it still remains a great challenge to synthesize nanostructures with the same composition and morphology but different phases in order to explore the phase-dependent properties and applications. Herein, we report the crystal phase-controlled synthesis of PtCu alloy shells on 4H Au nanoribbons (NRBs), referred to as 4H-Au NRBs, to form the 4H-Au@PtCu core-shell NRBs. By tuning the thickness of PtCu, 4H-PtCu and face-centered cubic (fcc) phase PtCu (fcc-PtCu) alloy shells are successfully grown on the 4H-Au NRB cores. This thickness-dependent phase-controlled growth strategy can also be used to grow PtCo alloys with 4H or fcc phase on 4H-Au NRBs. Significantly, when used as electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media, the 4H-Au@4H-PtCu NRBs show much better EOR performance than the 4H-Au@fcc-PtCu NRBs, and both of them possess superior performance compared to the commercial Pt black. Our study provides a strategy on phase-controlled synthesis of nanomaterials used for crystal phase-dependent applications.

AB - Crystal phase can greatly affect the physicochemical properties and applications of nanomaterials. However, it still remains a great challenge to synthesize nanostructures with the same composition and morphology but different phases in order to explore the phase-dependent properties and applications. Herein, we report the crystal phase-controlled synthesis of PtCu alloy shells on 4H Au nanoribbons (NRBs), referred to as 4H-Au NRBs, to form the 4H-Au@PtCu core-shell NRBs. By tuning the thickness of PtCu, 4H-PtCu and face-centered cubic (fcc) phase PtCu (fcc-PtCu) alloy shells are successfully grown on the 4H-Au NRB cores. This thickness-dependent phase-controlled growth strategy can also be used to grow PtCo alloys with 4H or fcc phase on 4H-Au NRBs. Significantly, when used as electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media, the 4H-Au@4H-PtCu NRBs show much better EOR performance than the 4H-Au@fcc-PtCu NRBs, and both of them possess superior performance compared to the commercial Pt black. Our study provides a strategy on phase-controlled synthesis of nanomaterials used for crystal phase-dependent applications.

KW - 4H hexagonal

KW - crystal phase

KW - ethanol oxidation reaction

KW - face-centered cubic

KW - phase engineering of nanomaterials

UR - http://www.scopus.com/inward/record.url?scp=85085563874&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85085563874&origin=recordpage

U2 - 10.1007/s12274-020-2849-y

DO - 10.1007/s12274-020-2849-y

M3 - RGC 21 - Publication in refereed journal

AN - SCOPUS:85085563874

SN - 1998-0124

VL - 13

SP - 1970

EP - 1975

JO - Nano Research

JF - Nano Research

IS - 7

ER -

Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction

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