Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

doi:10.1016/j.cjche.2021.09.026

Chinese Journal of Chemical Engineering ›› 2022, Vol. 41 ›› Issue (1): 320-328.DOI: 10.1016/j.cjche.2021.09.026

• Catalysis, Kinetics and Reaction Engineering • Previous Articles Next Articles

Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

Shan Ni^1,2, Hongnan Qu¹, Huifang Xing^1,2, Zihao Xu^1,2, Xiangyang Zhu^1,2, Menglei Yuan^1,2, Meng Rong¹, Li Wang¹, Jiemiao Yu¹, Yanqing Li¹, Liangrong Yang^1,2,3, Huizhou Liu^1,2,3

1 CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266061, China

Received:2021-04-09 Revised:2021-09-12 Online:2022-02-25 Published:2022-01-28
Contact: Liangrong Yang,E-mail address:lryang@ipe.ac.cn;Huizhou Liu,E-mail address:hzliu@ipe.ac.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (21922814, 22138012, 21961160745, 21921005, 22178349, 22078333, 22108281 and 31961133019), Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences (Y202014), and Shandong Energy Institute (Grant Number SEI 1202133).

Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

Shan Ni^1,2, Hongnan Qu¹, Huifang Xing^1,2, Zihao Xu^1,2, Xiangyang Zhu^1,2, Menglei Yuan^1,2, Meng Rong¹, Li Wang¹, Jiemiao Yu¹, Yanqing Li¹, Liangrong Yang^1,2,3, Huizhou Liu^1,2,3

1 CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266061, China

通讯作者: Liangrong Yang,E-mail address:lryang@ipe.ac.cn;Huizhou Liu,E-mail address:hzliu@ipe.ac.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (21922814, 22138012, 21961160745, 21921005, 22178349, 22078333, 22108281 and 31961133019), Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences (Y202014), and Shandong Energy Institute (Grant Number SEI 1202133).

Abstract

Abstract: Developing highly efficient, durable, and non-noble electrocatalysts for the sluggish anodic oxygen evolution reaction (OER) is the pivotal for meeting the practical demand in water splitting. However, the current transition-metal electrocatalysts still suffer from low activity and durability on account of poor interfacial reaction kinetics. In this work, a facile solid-state synthesis strategy is developed to construct transition-metal sulfides heterostructures (denoted as MS₂/NiS₂, M = Mo or W) for boosting OER electrocatalysis. As a result, MoS₂/NiS₂ and WS₂/NiS₂ show lower overpotentials of 300 mV and 320 mV to achieve the current density of 10 mA·cm^-2, and smaller Tafel slopes of 60 mV·dec^-1 and 83 mV·dec^-1 in 1 mol·L^-1 KOH, respectively, in comparison with the single MoS₂, WS₂, NiS₂, as well as even the benchmark RuO₂. The experiments reveal that the designed heterostructures have strong electronic interactions and spontaneously develop a built-in electric field at the heterointerface with uneven charge distribution based on the difference of band structures, which promote interfacial charge transfer, improve absorptivity of OH^-, and modulate the energy level more comparable to the OER. Thus, the designed transition-metal sulfides heterostructures exhibit a remarkably high electrocatalytic activity for OER. This study provides a simple strategy to manipulate the heterostructure interface via an energy level engineering method for OER and can be extended to fabricate other heterostructures for various energy-related applications.

Key words: Oxygen evolution reaction, Transition-metal sulfides heterostructures, Heterointerface, Built-in electric field

摘要： Developing highly efficient, durable, and non-noble electrocatalysts for the sluggish anodic oxygen evolution reaction (OER) is the pivotal for meeting the practical demand in water splitting. However, the current transition-metal electrocatalysts still suffer from low activity and durability on account of poor interfacial reaction kinetics. In this work, a facile solid-state synthesis strategy is developed to construct transition-metal sulfides heterostructures (denoted as MS₂/NiS₂, M = Mo or W) for boosting OER electrocatalysis. As a result, MoS₂/NiS₂ and WS₂/NiS₂ show lower overpotentials of 300 mV and 320 mV to achieve the current density of 10 mA·cm^-2, and smaller Tafel slopes of 60 mV·dec^-1 and 83 mV·dec^-1 in 1 mol·L^-1 KOH, respectively, in comparison with the single MoS₂, WS₂, NiS₂, as well as even the benchmark RuO₂. The experiments reveal that the designed heterostructures have strong electronic interactions and spontaneously develop a built-in electric field at the heterointerface with uneven charge distribution based on the difference of band structures, which promote interfacial charge transfer, improve absorptivity of OH^-, and modulate the energy level more comparable to the OER. Thus, the designed transition-metal sulfides heterostructures exhibit a remarkably high electrocatalytic activity for OER. This study provides a simple strategy to manipulate the heterostructure interface via an energy level engineering method for OER and can be extended to fabricate other heterostructures for various energy-related applications.

关键词: Oxygen evolution reaction, Transition-metal sulfides heterostructures, Heterointerface, Built-in electric field

Shan Ni, Hongnan Qu, Huifang Xing, Zihao Xu, Xiangyang Zhu, Menglei Yuan, Meng Rong, Li Wang, Jiemiao Yu, Yanqing Li, Liangrong Yang, Huizhou Liu. Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 320-328.

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Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

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