Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Huang Jing Wei Li; Kang Liu; Junwei Fu; Kejun Chen; Kexin Yang; Yiyang Lin; Baopeng Yang; Qiyou Wang; Hao Pan; Zhoujun Cai; Hongmei Li; Maoqi Cao; Junhua Hu; Ying Rui Lu; Ting Shan Chan; Emiliano Cortés; Andrea Fratalocchi; Min Liu

doi:10.1016/j.nanoen.2021.105767

Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Huang Jing Wei Li, Kang Liu, Junwei Fu, Kejun Chen, Kexin Yang, Yiyang Lin, Baopeng Yang, Qiyou Wang, Hao Pan, Zhoujun Cai, Hongmei Li, Maoqi Cao, Junhua Hu, Ying Rui Lu, Ting Shan Chan, Emiliano Cortés, Andrea Fratalocchi, Min Liu

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

109 Scopus citations

Abstract

Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is a promising electrochemical energy conversion strategy. Ruthenium (Ru) is an efficient catalyst with a desirable cost for HER, however, the sluggish H2O dissociation process, due to the low H2O adsorption on its surface, currently hampers the performances of this catalyst in alkaline HER. Herein, we demonstrate that the H2O adsorption improves significantly by the construction of Ru–O–Mo sites. We prepared Ru/MoO2 catalysts with Ru–O–Mo sites through a facile thermal treatment process and assessed the creation of Ru–O–Mo interfaces by transmission electron microscope (TEM) and extended X-ray absorption fine structure (EXAFS). By using Fourier-transform infrared spectroscopy (FTIR) and H2O adsorption tests, we proved Ru–O–Mo sites have tenfold stronger H2O adsorption ability than that of Ru catalyst. The catalysts with Ru–O–Mo sites exhibited a state-of-the-art overpotential of 16 mV at 10 mA cm–2 in 1 M KOH electrolyte, demonstrating a threefold reduction than the previous bests of Ru (59 mV) and commercial Pt (31 mV) catalysts. We proved the stability of these performances over 40 h without decline. These results could open a new path for designing efficient and stable catalysts.

Original language	English (US)
Pages (from-to)	105767
Journal	Nano Energy
Volume	82
DOIs	https://doi.org/10.1016/j.nanoen.2021.105767
State	Published - Jan 18 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-01-28
Acknowledgements: We thank the Natural Science Foundation of China (Grant No. 21872174, 22002189, and U1932148), International Science and Technology Cooperation Program (Grant No. 2017YFE0127800 and 2018YFE0203402), Hunan Provincial Science and Technology Program (Grant No. 2017XK2026), Hunan Provincial Natural Science Foundation of China (Grant No. 2020JJ2041 and 2020JJ5691), Shenzhen Science and Technology Innovation Project (Grant No. JCYJ20180307151313532), The Hunan Provincial Science and Technology Plan Project (Grant No. 2017TP1001), The Fundamental Research Funds for the Central Universities of Central South University, and Ministry of Science and Technology, Taiwan (Grant No. MOST 109–2113-M-213–002).

Access to Document

10.1016/j.nanoen.2021.105767

Cite this

@article{da08797884f5433a9d96c8519598834e,

title = "Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction",

abstract = "Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is a promising electrochemical energy conversion strategy. Ruthenium (Ru) is an efficient catalyst with a desirable cost for HER, however, the sluggish H2O dissociation process, due to the low H2O adsorption on its surface, currently hampers the performances of this catalyst in alkaline HER. Herein, we demonstrate that the H2O adsorption improves significantly by the construction of Ru–O–Mo sites. We prepared Ru/MoO2 catalysts with Ru–O–Mo sites through a facile thermal treatment process and assessed the creation of Ru–O–Mo interfaces by transmission electron microscope (TEM) and extended X-ray absorption fine structure (EXAFS). By using Fourier-transform infrared spectroscopy (FTIR) and H2O adsorption tests, we proved Ru–O–Mo sites have tenfold stronger H2O adsorption ability than that of Ru catalyst. The catalysts with Ru–O–Mo sites exhibited a state-of-the-art overpotential of 16 mV at 10 mA cm–2 in 1 M KOH electrolyte, demonstrating a threefold reduction than the previous bests of Ru (59 mV) and commercial Pt (31 mV) catalysts. We proved the stability of these performances over 40 h without decline. These results could open a new path for designing efficient and stable catalysts.",

author = "Li, {Huang Jing Wei} and Kang Liu and Junwei Fu and Kejun Chen and Kexin Yang and Yiyang Lin and Baopeng Yang and Qiyou Wang and Hao Pan and Zhoujun Cai and Hongmei Li and Maoqi Cao and Junhua Hu and Lu, {Ying Rui} and Chan, {Ting Shan} and Emiliano Cort{\'e}s and Andrea Fratalocchi and Min Liu",

note = "KAUST Repository Item: Exported on 2021-01-28 Acknowledgements: We thank the Natural Science Foundation of China (Grant No. 21872174, 22002189, and U1932148), International Science and Technology Cooperation Program (Grant No. 2017YFE0127800 and 2018YFE0203402), Hunan Provincial Science and Technology Program (Grant No. 2017XK2026), Hunan Provincial Natural Science Foundation of China (Grant No. 2020JJ2041 and 2020JJ5691), Shenzhen Science and Technology Innovation Project (Grant No. JCYJ20180307151313532), The Hunan Provincial Science and Technology Plan Project (Grant No. 2017TP1001), The Fundamental Research Funds for the Central Universities of Central South University, and Ministry of Science and Technology, Taiwan (Grant No. MOST 109–2113-M-213–002).",

year = "2021",

month = jan,

day = "18",

doi = "10.1016/j.nanoen.2021.105767",

language = "English (US)",

volume = "82",

pages = "105767",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier",

}

TY - JOUR

T1 - Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

AU - Li, Huang Jing Wei

AU - Liu, Kang

AU - Fu, Junwei

AU - Chen, Kejun

AU - Yang, Kexin

AU - Lin, Yiyang

AU - Yang, Baopeng

AU - Wang, Qiyou

AU - Pan, Hao

AU - Cai, Zhoujun

AU - Li, Hongmei

AU - Cao, Maoqi

AU - Hu, Junhua

AU - Lu, Ying Rui

AU - Chan, Ting Shan

AU - Cortés, Emiliano

AU - Fratalocchi, Andrea

AU - Liu, Min

N1 - KAUST Repository Item: Exported on 2021-01-28 Acknowledgements: We thank the Natural Science Foundation of China (Grant No. 21872174, 22002189, and U1932148), International Science and Technology Cooperation Program (Grant No. 2017YFE0127800 and 2018YFE0203402), Hunan Provincial Science and Technology Program (Grant No. 2017XK2026), Hunan Provincial Natural Science Foundation of China (Grant No. 2020JJ2041 and 2020JJ5691), Shenzhen Science and Technology Innovation Project (Grant No. JCYJ20180307151313532), The Hunan Provincial Science and Technology Plan Project (Grant No. 2017TP1001), The Fundamental Research Funds for the Central Universities of Central South University, and Ministry of Science and Technology, Taiwan (Grant No. MOST 109–2113-M-213–002).

PY - 2021/1/18

Y1 - 2021/1/18

N2 - Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is a promising electrochemical energy conversion strategy. Ruthenium (Ru) is an efficient catalyst with a desirable cost for HER, however, the sluggish H2O dissociation process, due to the low H2O adsorption on its surface, currently hampers the performances of this catalyst in alkaline HER. Herein, we demonstrate that the H2O adsorption improves significantly by the construction of Ru–O–Mo sites. We prepared Ru/MoO2 catalysts with Ru–O–Mo sites through a facile thermal treatment process and assessed the creation of Ru–O–Mo interfaces by transmission electron microscope (TEM) and extended X-ray absorption fine structure (EXAFS). By using Fourier-transform infrared spectroscopy (FTIR) and H2O adsorption tests, we proved Ru–O–Mo sites have tenfold stronger H2O adsorption ability than that of Ru catalyst. The catalysts with Ru–O–Mo sites exhibited a state-of-the-art overpotential of 16 mV at 10 mA cm–2 in 1 M KOH electrolyte, demonstrating a threefold reduction than the previous bests of Ru (59 mV) and commercial Pt (31 mV) catalysts. We proved the stability of these performances over 40 h without decline. These results could open a new path for designing efficient and stable catalysts.

AB - Electrocatalytic hydrogen evolution reaction (HER) in alkaline media is a promising electrochemical energy conversion strategy. Ruthenium (Ru) is an efficient catalyst with a desirable cost for HER, however, the sluggish H2O dissociation process, due to the low H2O adsorption on its surface, currently hampers the performances of this catalyst in alkaline HER. Herein, we demonstrate that the H2O adsorption improves significantly by the construction of Ru–O–Mo sites. We prepared Ru/MoO2 catalysts with Ru–O–Mo sites through a facile thermal treatment process and assessed the creation of Ru–O–Mo interfaces by transmission electron microscope (TEM) and extended X-ray absorption fine structure (EXAFS). By using Fourier-transform infrared spectroscopy (FTIR) and H2O adsorption tests, we proved Ru–O–Mo sites have tenfold stronger H2O adsorption ability than that of Ru catalyst. The catalysts with Ru–O–Mo sites exhibited a state-of-the-art overpotential of 16 mV at 10 mA cm–2 in 1 M KOH electrolyte, demonstrating a threefold reduction than the previous bests of Ru (59 mV) and commercial Pt (31 mV) catalysts. We proved the stability of these performances over 40 h without decline. These results could open a new path for designing efficient and stable catalysts.

UR - http://hdl.handle.net/10754/667048

UR - https://linkinghub.elsevier.com/retrieve/pii/S2211285521000252

UR - http://www.scopus.com/inward/record.url?scp=85099521407&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2021.105767

DO - 10.1016/j.nanoen.2021.105767

M3 - Article

SN - 2211-2855

VL - 82

SP - 105767

JO - Nano Energy

JF - Nano Energy

ER -

Paired Ru‒O‒Mo ensemble for efficient and stable alkaline hydrogen evolution reaction

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this