Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis

Zhangxun Xia; Jian Fang; Xiaoming Zhang; Linpeng Fan; Anders J. Barlow; Tong Lin; Suli Wang; Gordon G. Wallace; Gongquan Sun; Xungai Wang

doi:10.1016/j.apcatb.2018.12.073

Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis

Zhangxun Xia, Jian Fang, Xiaoming Zhang, Linpeng Fan, Anders J. Barlow, Tong Lin, Suli Wang, Gordon G. Wallace, Gongquan Sun, Xungai Wang (Corresponding Author)

Research output: Journal article publication › Journal article › Academic research › peer-review

73 Citations (Scopus)

Abstract

To meet the increasing demands for highly active electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), here in this work, a new strategy of synergistic nano-architecture design based on Platinum nanoparticles (Pt NPs) and ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) is developed for bifunctional electrochemical catalysts. Compared with commercial Pt/C and RuO₂ catalysts, remarkable enhancements in activity and durability of both oxygen reduction and oxygen evolution reactions are achieved on our PtNPs@MOFs composite materials, with one of the lowest over-potential gaps (E_gap) of 665 mV that has ever been reported. The tests on the assembled Zn-air batteries have revealed promising electrocatalytic performance and practical advantage of our new materials as air cathode catalyst. Both experimental results and theoretical study have confirmed the synergistic effect between Pt NPs and MOF nanosheets through a “win-win” electron structural modification, demonstrating the effectiveness of our strategy in developing effective bifunctional oxygen electrocatalysts for various types of electrochemical devices.

Original language	English
Pages (from-to)	389-398
Number of pages	10
Journal	Applied Catalysis B: Environmental
Volume	245
DOIs	https://doi.org/10.1016/j.apcatb.2018.12.073
Publication status	Published - 15 May 2019
Externally published	Yes

Keywords

2-D nanosheets
Bi-functional catalyst
Metal-organic frameworks
Oxygen electrocatalysis
Rechargeable Zn-air battery

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

More information

10.1016/j.apcatb.2018.12.073

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Xia, Z., Fang, J., Zhang, X., Fan, L., Barlow, A. J., Lin, T., Wang, S., Wallace, G. G., Sun, G., & Wang, X. (2019). Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis. Applied Catalysis B: Environmental, 245, 389-398. https://doi.org/10.1016/j.apcatb.2018.12.073

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title = "Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis",

abstract = "To meet the increasing demands for highly active electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), here in this work, a new strategy of synergistic nano-architecture design based on Platinum nanoparticles (Pt NPs) and ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) is developed for bifunctional electrochemical catalysts. Compared with commercial Pt/C and RuO2 catalysts, remarkable enhancements in activity and durability of both oxygen reduction and oxygen evolution reactions are achieved on our PtNPs@MOFs composite materials, with one of the lowest over-potential gaps (Egap) of 665 mV that has ever been reported. The tests on the assembled Zn-air batteries have revealed promising electrocatalytic performance and practical advantage of our new materials as air cathode catalyst. Both experimental results and theoretical study have confirmed the synergistic effect between Pt NPs and MOF nanosheets through a “win-win” electron structural modification, demonstrating the effectiveness of our strategy in developing effective bifunctional oxygen electrocatalysts for various types of electrochemical devices.",

keywords = "2-D nanosheets, Bi-functional catalyst, Metal-organic frameworks, Oxygen electrocatalysis, Rechargeable Zn-air battery",

author = "Zhangxun Xia and Jian Fang and Xiaoming Zhang and Linpeng Fan and Barlow, {Anders J.} and Tong Lin and Suli Wang and Wallace, {Gordon G.} and Gongquan Sun and Xungai Wang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "15",

doi = "10.1016/j.apcatb.2018.12.073",

language = "English",

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}

Xia, Z, Fang, J, Zhang, X, Fan, L, Barlow, AJ, Lin, T, Wang, S, Wallace, GG, Sun, G & Wang, X 2019, 'Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis', Applied Catalysis B: Environmental, vol. 245, pp. 389-398. https://doi.org/10.1016/j.apcatb.2018.12.073

Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis. / Xia, Zhangxun; Fang, Jian; Zhang, Xiaoming et al.
In: Applied Catalysis B: Environmental, Vol. 245, 15.05.2019, p. 389-398.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

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AU - Xia, Zhangxun

AU - Fang, Jian

AU - Zhang, Xiaoming

AU - Fan, Linpeng

AU - Barlow, Anders J.

AU - Lin, Tong

AU - Wang, Suli

AU - Wallace, Gordon G.

AU - Sun, Gongquan

AU - Wang, Xungai

PY - 2019/5/15

Y1 - 2019/5/15

N2 - To meet the increasing demands for highly active electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), here in this work, a new strategy of synergistic nano-architecture design based on Platinum nanoparticles (Pt NPs) and ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) is developed for bifunctional electrochemical catalysts. Compared with commercial Pt/C and RuO2 catalysts, remarkable enhancements in activity and durability of both oxygen reduction and oxygen evolution reactions are achieved on our PtNPs@MOFs composite materials, with one of the lowest over-potential gaps (Egap) of 665 mV that has ever been reported. The tests on the assembled Zn-air batteries have revealed promising electrocatalytic performance and practical advantage of our new materials as air cathode catalyst. Both experimental results and theoretical study have confirmed the synergistic effect between Pt NPs and MOF nanosheets through a “win-win” electron structural modification, demonstrating the effectiveness of our strategy in developing effective bifunctional oxygen electrocatalysts for various types of electrochemical devices.

AB - To meet the increasing demands for highly active electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), here in this work, a new strategy of synergistic nano-architecture design based on Platinum nanoparticles (Pt NPs) and ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) is developed for bifunctional electrochemical catalysts. Compared with commercial Pt/C and RuO2 catalysts, remarkable enhancements in activity and durability of both oxygen reduction and oxygen evolution reactions are achieved on our PtNPs@MOFs composite materials, with one of the lowest over-potential gaps (Egap) of 665 mV that has ever been reported. The tests on the assembled Zn-air batteries have revealed promising electrocatalytic performance and practical advantage of our new materials as air cathode catalyst. Both experimental results and theoretical study have confirmed the synergistic effect between Pt NPs and MOF nanosheets through a “win-win” electron structural modification, demonstrating the effectiveness of our strategy in developing effective bifunctional oxygen electrocatalysts for various types of electrochemical devices.

KW - 2-D nanosheets

KW - Bi-functional catalyst

KW - Metal-organic frameworks

KW - Oxygen electrocatalysis

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VL - 245

SP - 389

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JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Pt nanoparticles embedded metal-organic framework nanosheets: Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis

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