2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

Jie Wang; An Zhang; Wenxin Niu; Guigao Liu; Xichen Zhou; Lixin Wang; Xiaozhi Liu; Lujiang Li; Zijian Li; Li Zhai; Qi Yang; Biao Huang; Qingbo Wa; Qinbai Yun; Hongfei Cheng; Yiyao Ge; Jingtao Huang; Zhaoning Hu; Bo Chen; Qinyong Zhang; Zhanxi Fan; Lin Gu; Hua Zhang

doi:10.1002/adfm.202405073

2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

Jie Wang (Co-first Author)
, An Zhang (Co-first Author)
, Wenxin Niu (Co-first Author)
, Guigao Liu (Co-first Author)
, Xichen Zhou (Co-first Author)
, Lixin Wang
, Xiaozhi Liu
, Lujiang Li
, Zijian Li
, Li Zhai
, Qi Yang
, Biao Huang
, Qingbo Wa
, Qinbai Yun
, Hongfei Cheng
, Yiyao Ge
, Jingtao Huang
, Zhaoning Hu
, Bo Chen
, Qinyong Zhang

Zhanxi Fan, Lin Gu, Hua Zhang^*

^*Corresponding author for this work

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

20 Citations (Scopus)

13 Downloads (CityUHK Scholars)

Abstract

Pd-based alloy nanomaterials normally crystallize in the conventional face-centered cubic (fcc) crystal phase. Here, 2H-Au nanosheets (NSs), possessing 2H crystal phase (2H: hexagonal close-packed with a stacking sequence of “AB”), are used as templates for the growth of PdFe, during which the 2H-to-fcc phase transformation in Au NSs happens, leading to the formation of 2H/fcc Au@PdFe core–shell NSs. By changing the Pd/Fe atomic ratio, the 2H/fcc phase ratio in 2H/fcc Au@PdFe NSs can be tuned accordingly. As a proof-of-concept application, the as-synthesized 2H/fcc Au@Pd_0.66Fe_0.34 NSs are used as an electrocatalyst for methanol oxidation reaction (MOR) in alkaline media, exhibiting a remarkable mass activity of 4.39 A mg⁻¹_Pd, which is 1.7, 5.4 and 12.9 times that of 2H/fcc Au@Pd_0.56Fe_0.44 NSs (2.57 A mg⁻¹_Pd), 2H/fcc Au@Pd_0.40Fe_0.60 NSs (0.81 A mg⁻¹_Pd), and Pd black (0.34 A mg⁻¹_Pd), respectively, placing it among the best of reported Pd-based MOR electrocatalysts. This strategy, based on phase engineering of nanomaterials (PEN), paves an efficient way to the rational design and controlled synthesis of noble multimetallic nanostructures with unconventional phases for exploring the phase-dependent properties and applications. © 2024 The Author(s). Advanced Functional Materials published by Wiley-VCH GmbH.

Original language	English
Article number	2405073
Number of pages	7
Journal	Advanced Functional Materials
Volume	35
Issue number	21
Online published	10 Sept 2024
DOIs	https://doi.org/10.1002/adfm.202405073
Publication status	Published - 22 May 2025

Funding

J.W., A.Z., W.N., G.L., and X.Z. contributed equally to this work. H.Z. thanks the NSFC (Project 52131301), Research Grants Council of Hong Kong (GRF Project No. 11301721, AoE/P-701/20), City University of Hong Kong (Project Nos. 9380100, 9610663, 7020103, 7006010 and 1886921), and ITC via the Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM). J.W. thanks the support from the Key Project of Xihua University (No. Z222070), Chengdu Vehicle Environmental Protection Technology Co., Ltd, (No. 2023-CDVEPTKF-04), and the National Natural Science Foundation of China (No. 52372227).

Research Keywords

crystal phase engineering
heterophase
methanol oxidation reaction
Pd-based alloy
phase transformation

Publisher's Copyright Statement

This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

RGC Funding Information

RGC-funded

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10.1002/adfm.202405073

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Wang, J., Zhang, A., Niu, W., Liu, G., Zhou, X., Wang, L., Liu, X., Li, L., Li, Z., Zhai, L., Yang, Q., Huang, B., Wa, Q., Yun, Q., Cheng, H., Ge, Y., Huang, J., Hu, Z., Chen, B., ... Zhang, H. (2025). 2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation. Advanced Functional Materials, 35(21), Article 2405073. https://doi.org/10.1002/adfm.202405073

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abstract = "Pd-based alloy nanomaterials normally crystallize in the conventional face-centered cubic (fcc) crystal phase. Here, 2H-Au nanosheets (NSs), possessing 2H crystal phase (2H: hexagonal close-packed with a stacking sequence of “AB”), are used as templates for the growth of PdFe, during which the 2H-to-fcc phase transformation in Au NSs happens, leading to the formation of 2H/fcc Au@PdFe core–shell NSs. By changing the Pd/Fe atomic ratio, the 2H/fcc phase ratio in 2H/fcc Au@PdFe NSs can be tuned accordingly. As a proof-of-concept application, the as-synthesized 2H/fcc [email protected] NSs are used as an electrocatalyst for methanol oxidation reaction (MOR) in alkaline media, exhibiting a remarkable mass activity of 4.39 A mg−1Pd, which is 1.7, 5.4 and 12.9 times that of 2H/fcc [email protected] NSs (2.57 A mg−1Pd), 2H/fcc [email protected] NSs (0.81 A mg−1Pd), and Pd black (0.34 A mg−1Pd), respectively, placing it among the best of reported Pd-based MOR electrocatalysts. This strategy, based on phase engineering of nanomaterials (PEN), paves an efficient way to the rational design and controlled synthesis of noble multimetallic nanostructures with unconventional phases for exploring the phase-dependent properties and applications. {\textcopyright} 2024 The Author(s). Advanced Functional Materials published by Wiley-VCH GmbH.",

keywords = "crystal phase engineering, heterophase, methanol oxidation reaction, Pd-based alloy, phase transformation",

author = "Jie Wang and An Zhang and Wenxin Niu and Guigao Liu and Xichen Zhou and Lixin Wang and Xiaozhi Liu and Lujiang Li and Zijian Li and Li Zhai and Qi Yang and Biao Huang and Qingbo Wa and Qinbai Yun and Hongfei Cheng and Yiyao Ge and Jingtao Huang and Zhaoning Hu and Bo Chen and Qinyong Zhang and Zhanxi Fan and Lin Gu and Hua Zhang",

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Wang, J, Zhang, A, Niu, W, Liu, G, Zhou, X , Wang, L, Liu, X, Li, L , Li, Z , Zhai, L , Yang, Q , Huang, B , Wa, Q, Yun, Q, Cheng, H, Ge, Y, Huang, J, Hu, Z, Chen, B, Zhang, Q, Fan, Z, Gu, L & Zhang, H 2025, '2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation', Advanced Functional Materials, vol. 35, no. 21, 2405073. https://doi.org/10.1002/adfm.202405073

TY - JOUR

T1 - 2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

AU - Wang, Jie

AU - Zhang, An

AU - Niu, Wenxin

AU - Liu, Guigao

AU - Zhou, Xichen

AU - Wang, Lixin

AU - Liu, Xiaozhi

AU - Li, Lujiang

AU - Li, Zijian

AU - Zhai, Li

AU - Yang, Qi

AU - Huang, Biao

AU - Wa, Qingbo

AU - Yun, Qinbai

AU - Cheng, Hongfei

AU - Ge, Yiyao

AU - Huang, Jingtao

AU - Hu, Zhaoning

AU - Chen, Bo

AU - Zhang, Qinyong

AU - Fan, Zhanxi

AU - Gu, Lin

AU - Zhang, Hua

PY - 2025/5/22

Y1 - 2025/5/22

N2 - Pd-based alloy nanomaterials normally crystallize in the conventional face-centered cubic (fcc) crystal phase. Here, 2H-Au nanosheets (NSs), possessing 2H crystal phase (2H: hexagonal close-packed with a stacking sequence of “AB”), are used as templates for the growth of PdFe, during which the 2H-to-fcc phase transformation in Au NSs happens, leading to the formation of 2H/fcc Au@PdFe core–shell NSs. By changing the Pd/Fe atomic ratio, the 2H/fcc phase ratio in 2H/fcc Au@PdFe NSs can be tuned accordingly. As a proof-of-concept application, the as-synthesized 2H/fcc [email protected] NSs are used as an electrocatalyst for methanol oxidation reaction (MOR) in alkaline media, exhibiting a remarkable mass activity of 4.39 A mg−1Pd, which is 1.7, 5.4 and 12.9 times that of 2H/fcc [email protected] NSs (2.57 A mg−1Pd), 2H/fcc [email protected] NSs (0.81 A mg−1Pd), and Pd black (0.34 A mg−1Pd), respectively, placing it among the best of reported Pd-based MOR electrocatalysts. This strategy, based on phase engineering of nanomaterials (PEN), paves an efficient way to the rational design and controlled synthesis of noble multimetallic nanostructures with unconventional phases for exploring the phase-dependent properties and applications. © 2024 The Author(s). Advanced Functional Materials published by Wiley-VCH GmbH.

AB - Pd-based alloy nanomaterials normally crystallize in the conventional face-centered cubic (fcc) crystal phase. Here, 2H-Au nanosheets (NSs), possessing 2H crystal phase (2H: hexagonal close-packed with a stacking sequence of “AB”), are used as templates for the growth of PdFe, during which the 2H-to-fcc phase transformation in Au NSs happens, leading to the formation of 2H/fcc Au@PdFe core–shell NSs. By changing the Pd/Fe atomic ratio, the 2H/fcc phase ratio in 2H/fcc Au@PdFe NSs can be tuned accordingly. As a proof-of-concept application, the as-synthesized 2H/fcc [email protected] NSs are used as an electrocatalyst for methanol oxidation reaction (MOR) in alkaline media, exhibiting a remarkable mass activity of 4.39 A mg−1Pd, which is 1.7, 5.4 and 12.9 times that of 2H/fcc [email protected] NSs (2.57 A mg−1Pd), 2H/fcc [email protected] NSs (0.81 A mg−1Pd), and Pd black (0.34 A mg−1Pd), respectively, placing it among the best of reported Pd-based MOR electrocatalysts. This strategy, based on phase engineering of nanomaterials (PEN), paves an efficient way to the rational design and controlled synthesis of noble multimetallic nanostructures with unconventional phases for exploring the phase-dependent properties and applications. © 2024 The Author(s). Advanced Functional Materials published by Wiley-VCH GmbH.

KW - crystal phase engineering

KW - heterophase

KW - methanol oxidation reaction

KW - Pd-based alloy

KW - phase transformation

UR - https://www.scopus.com/pages/publications/85203379587

UR - https://www.scopus.com/pages/publications/85203379587#tab=impact

U2 - 10.1002/adfm.202405073

DO - 10.1002/adfm.202405073

M3 - RGC 21 - Publication in refereed journal

SN - 1616-301X

VL - 35

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 21

M1 - 2405073

ER -

2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

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AoE(UGC)-ExtU-Lead: 2D Materials Research: Fundamentals Towards Emerging Technologies

GRF: Synthesis of Amorphous/Crystalline Heterophase Metal Nanomaterials for Catalysis

Cite this

2H-Au Nanosheet-Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

AoE(UGC)-ExtU-Lead: 2D Materials Research: Fundamentals Towards Emerging Technologies

GRF: Synthesis of Amorphous/Crystalline Heterophase Metal Nanomaterials for Catalysis

Cite this