Amorphous MoOX-Stabilized single platinum atoms with ultrahigh mass activity for acidic hydrogen evolution

Jie Xu; Chaoxiong Zhang; Haoxuan Liu; Jiaqiang Sun; Ruicong Xie; Yuan Qiu; Fang Lü; Yifan Liu; Longchao Zhuo; Xijun Liu; Jun Luo

doi:10.1016/j.nanoen.2020.104529

Amorphous MoO_X-Stabilized single platinum atoms with ultrahigh mass activity for acidic hydrogen evolution

Jie Xu, Chaoxiong Zhang, Haoxuan Liu, Jiaqiang Sun, Ruicong Xie, Yuan Qiu, Fang Lü, Yifan Liu, Longchao Zhuo, Xijun Liu, Jun Luo

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

157 Scopus citations

Abstract

It is highly desirable to develop Pt single-atom (SA) catalysts with an optimized mass activity for acidic hydrogen evolution reaction (HER), but it remains a significant challenge. In this study, a new Pt SA strongly coupled with amorphous MoO_X (Pt-SA/ɑ-MoO_x) is rationally designed. The synergistic effect between unsaturated Pt atoms and defective MoO_x can significantly lower the reaction barrier contributing to the fast HER reaction kinetics. Hence, Pt-SA/ɑ-MoO_x exhibits an ultrahigh mass activity of 52.0 A mg_Pt ⁻¹ at an overpotential of 50 mV, corresponding to better acidic HER activity than those reported previously for Pt SA-based catalysts. Furthermore, Pt-SA/ɑ-MoO_x shows Pt-like kinetics with a small Tafel slope of 123 mV dec⁻¹ and outstanding long-term electrochemical stability for 20 h. This developed synthetic method is also extended for the fabrication of other amorphous MoO_x-supported SA catalysts (e.g. Ir, Au and Pb). As far as we know, our study reports the first example of the combination of metal SA and amorphous oxide for highly efficient electrocatalysis.

Original language	English
Article number	104529
Journal	Nano Energy
Volume	70
DOIs	https://doi.org/10.1016/j.nanoen.2020.104529
State	Published - Apr 2020
Externally published	Yes

Funding

This study was financially supported by the National Key R&D Program of China (2017YFA0700104), National Natural Science Foundation of China (51971157, 21601136, 51808037 and 51761165012), National Program for Thousand Young Talents of China, Wuxi Research Institute of Applied Technologies of Tsinghua University and Institute for Electronics and Information Technology in Tianjin, Tsinghua University. The authors wish to thank facility support at the 1W1B beamline of Beijing Synchrotron Radiation Facility (BSRF) and National Supercomputing Center in Shenzhen (version 7.0, DMol3). This study was financially supported by the National Key R&D Program of China ( 2017YFA0700104 ), National Natural Science Foundation of China ( 51971157 , 21601136 , 51808037 and 51761165012 ), National Program for Thousand Young Talents of China , Wuxi Research Institute of Applied Technologies of Tsinghua University and Institute for Electronics and Information Technology in Tianjin , Tsinghua University. The authors wish to thank facility support at the 1W1B beamline of Beijing Synchrotron Radiation Facility (BSRF) and National Supercomputing Center in Shenzhen (version 7.0, DMol 3 ).

Funders	Funder number
Institute for Electronics and Information Technology in Tianjin
National Supercomputing Center in Shenzhen	DMol3
Wuxi Research Institute of Applied Technologies of Tsinghua University
National Natural Science Foundation of China	21601136, 51761165012, 51808037, 51971157
Tsinghua University
Recruitment Program of Global Experts
National Key Research and Development Program of China	2017YFA0700104

Keywords

Amorphous MoO
Electrocatalysis
Hydrogen evolution reaction
Single-atom catalyst
Ultrahigh mass activity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.nanoen.2020.104529

Cite this

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title = "Amorphous MoOX-Stabilized single platinum atoms with ultrahigh mass activity for acidic hydrogen evolution",

abstract = "It is highly desirable to develop Pt single-atom (SA) catalysts with an optimized mass activity for acidic hydrogen evolution reaction (HER), but it remains a significant challenge. In this study, a new Pt SA strongly coupled with amorphous MoOX (Pt-SA/ɑ-MoOx) is rationally designed. The synergistic effect between unsaturated Pt atoms and defective MoOx can significantly lower the reaction barrier contributing to the fast HER reaction kinetics. Hence, Pt-SA/ɑ-MoOx exhibits an ultrahigh mass activity of 52.0 A mgPt −1 at an overpotential of 50 mV, corresponding to better acidic HER activity than those reported previously for Pt SA-based catalysts. Furthermore, Pt-SA/ɑ-MoOx shows Pt-like kinetics with a small Tafel slope of 123 mV dec−1 and outstanding long-term electrochemical stability for 20 h. This developed synthetic method is also extended for the fabrication of other amorphous MoOx-supported SA catalysts (e.g. Ir, Au and Pb). As far as we know, our study reports the first example of the combination of metal SA and amorphous oxide for highly efficient electrocatalysis.",

keywords = "Amorphous MoO, Electrocatalysis, Hydrogen evolution reaction, Single-atom catalyst, Ultrahigh mass activity",

author = "Jie Xu and Chaoxiong Zhang and Haoxuan Liu and Jiaqiang Sun and Ruicong Xie and Yuan Qiu and Fang L{\"u} and Yifan Liu and Longchao Zhuo and Xijun Liu and Jun Luo",

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year = "2020",

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doi = "10.1016/j.nanoen.2020.104529",

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T1 - Amorphous MoOX-Stabilized single platinum atoms with ultrahigh mass activity for acidic hydrogen evolution

AU - Xu, Jie

AU - Zhang, Chaoxiong

AU - Liu, Haoxuan

AU - Sun, Jiaqiang

AU - Xie, Ruicong

AU - Qiu, Yuan

AU - Lü, Fang

AU - Liu, Yifan

AU - Zhuo, Longchao

AU - Liu, Xijun

AU - Luo, Jun

PY - 2020/4

Y1 - 2020/4

N2 - It is highly desirable to develop Pt single-atom (SA) catalysts with an optimized mass activity for acidic hydrogen evolution reaction (HER), but it remains a significant challenge. In this study, a new Pt SA strongly coupled with amorphous MoOX (Pt-SA/ɑ-MoOx) is rationally designed. The synergistic effect between unsaturated Pt atoms and defective MoOx can significantly lower the reaction barrier contributing to the fast HER reaction kinetics. Hence, Pt-SA/ɑ-MoOx exhibits an ultrahigh mass activity of 52.0 A mgPt −1 at an overpotential of 50 mV, corresponding to better acidic HER activity than those reported previously for Pt SA-based catalysts. Furthermore, Pt-SA/ɑ-MoOx shows Pt-like kinetics with a small Tafel slope of 123 mV dec−1 and outstanding long-term electrochemical stability for 20 h. This developed synthetic method is also extended for the fabrication of other amorphous MoOx-supported SA catalysts (e.g. Ir, Au and Pb). As far as we know, our study reports the first example of the combination of metal SA and amorphous oxide for highly efficient electrocatalysis.

AB - It is highly desirable to develop Pt single-atom (SA) catalysts with an optimized mass activity for acidic hydrogen evolution reaction (HER), but it remains a significant challenge. In this study, a new Pt SA strongly coupled with amorphous MoOX (Pt-SA/ɑ-MoOx) is rationally designed. The synergistic effect between unsaturated Pt atoms and defective MoOx can significantly lower the reaction barrier contributing to the fast HER reaction kinetics. Hence, Pt-SA/ɑ-MoOx exhibits an ultrahigh mass activity of 52.0 A mgPt −1 at an overpotential of 50 mV, corresponding to better acidic HER activity than those reported previously for Pt SA-based catalysts. Furthermore, Pt-SA/ɑ-MoOx shows Pt-like kinetics with a small Tafel slope of 123 mV dec−1 and outstanding long-term electrochemical stability for 20 h. This developed synthetic method is also extended for the fabrication of other amorphous MoOx-supported SA catalysts (e.g. Ir, Au and Pb). As far as we know, our study reports the first example of the combination of metal SA and amorphous oxide for highly efficient electrocatalysis.

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KW - Hydrogen evolution reaction

KW - Single-atom catalyst

KW - Ultrahigh mass activity

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