Heterojunction engineering of MoSe2/MoS2 with electronic modulation towards synergetic hydrogen evolution reaction and supercapacitance performance

Li, Songzhan; Zang, Wenjie; Liu, Ximeng; Pennycook, Stephen J.; Kou, Zongkui; Yang, Chao; Guan, Cao; Wang, John

doi:10.1016/j.cej.2018.11.036

“…[15] Besides,construction of heterostructures,w hich can tune the electronic structure and induce strong interfacial electron transfer to facilitate the reaction kinetics,i sa ne ffective strategy to improve the cycling stability of electrode materials. [19][20][21][22][23][24] At the same time,t he synergetic effect between different components would promote the transport of ions and electrons. [20,25,26] Construction of advanced structures for electrode materials is also an effective strategy to boost the electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21][22][23][24] At the same time,t he synergetic effect between different components would promote the transport of ions and electrons. [20,25,26] Construction of advanced structures for electrode materials is also an effective strategy to boost the electrochemical performance. [27][28][29] One-dimensional (1D) structures,i ncluding nanowires,n anofibers (NFs), nanorods and nanotubes, have shown advantages for energy storage with high surface areas and short diffusion paths.…”

Section: Introductionmentioning

confidence: 99%

Construction of CoO/Co‐Cu‐S Hierarchical Tubular Heterostructures for Hybrid Supercapacitors

Li

¹

,

Shen

²

,

Zhang

³

et al. 2019

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Hierarchical hollow structures for electrode materials of supercapacitors could enlarge the surface area, accelerate the transport of ions and electrons, and accommodate volume expansion during cycling. Besides, construction of heterostructures would enhance the internal electric fields to regulate the electronic structures. All these features of hierarchical hollow heterostructures are beneficial for promoting the electrochemical properties and stability of electrode materials for high‐performance supercapacitors. Herein, CoO/Co‐Cu‐S hierarchical tubular heterostructures (HTHSs) composed of nanoneedles are prepared by an efficient multi‐step approach. The optimized sample exhibits a high specific capacity of 320 mAh g−1 (2300 F g−1) at 2.0 A g−1 and outstanding cycling stability with 96.5 % of the initial capacity retained after 5000 cycles at 10 A g−1. Moreover, an all‐solid‐state hybrid supercapacitor (HSC) constructed with the CoO/Co‐Cu‐S and actived carbon shows a stable and high energy density of 90.7 Wh kg−1 at a power density of 800 W kg−1.

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“…[15] Besides,c onstruction of heterostructures,which can tune the electronic structure and induce strong interfacial electron transfer to facilitate the reaction kinetics,i sa ne ffective strategy to improve the cycling stability of electrode materials. [19][20][21][22][23][24] At the same time,t he synergetic effect between different components would promote the transport of ions and electrons. [20,25,26] Construction of advanced structures for electrode materials is also an effective strategy to boost the electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21][22][23][24] At the same time,t he synergetic effect between different components would promote the transport of ions and electrons. [20,25,26] Construction of advanced structures for electrode materials is also an effective strategy to boost the electrochemical performance. [27][28][29] One-dimensional (1D) structures,i ncluding nanowires,n anofibers (NFs), nanorods and nanotubes,h ave shown advantages for energy storage with high surface areas and short diffusion paths.…”

Section: Introductionmentioning

confidence: 99%

Construction of CoO/Co‐Cu‐S Hierarchical Tubular Heterostructures for Hybrid Supercapacitors

Lou

¹

2019

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Hierarchical hollow structures for electrode materials of supercapacitors could enlarge the surface area, accelerate the transport of ions and electrons, and accommodate volume expansion during cycling. Besides, construction of heterostructures would enhance the internal electric fields to regulate the electronic structures. All these features of hierarchical hollow heterostructures are beneficial for promoting the electrochemical properties and stability of electrode materials for high‐performance supercapacitors. Herein, CoO/Co‐Cu‐S hierarchical tubular heterostructures (HTHSs) composed of nanoneedles are prepared by an efficient multi‐step approach. The optimized sample exhibits a high specific capacity of 320 mAh g−1 (2300 F g−1) at 2.0 A g−1 and outstanding cycling stability with 96.5 % of the initial capacity retained after 5000 cycles at 10 A g−1. Moreover, an all‐solid‐state hybrid supercapacitor (HSC) constructed with the CoO/Co‐Cu‐S and actived carbon shows a stable and high energy density of 90.7 Wh kg−1 at a power density of 800 W kg−1.

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“…MoS 2 has also been mixed with MoSe 2 to form heterojunctions exhibiting superior ion storage ability, enhancing the capacitive storage. Songzhan Li et al [50] fabricated a 2D heterojunction of MoS 2 and MoSe 2 held together by van der Waals /covalent interaction. Since the topmost layer decides the work function and electronic states, the formation of this heterojunction gave high flexibility in modifying the electrochemical activity and ion storage performance.…”

Section: D Tmd Electrodes For Asymmetric Supercapacitorsmentioning

confidence: 99%

Symmetric, Asymmetric, and Battery‐Type Supercapacitors Using Two‐Dimensional Nanomaterials and Composites

Cherusseri

¹

,

Pandey

²

,

Thomas

³

2020

Batteries & Supercaps

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Recent advances in the field of energy storage devices such as supercapacitors and batteries have helped mankind to cater to their power demands to a greater extent. 2D materials‐based electrodes have attracted great interest in the recent past due to their unique properties such as large surface area, good electronic conductivity, excellent electrochemical properties, and good chemical, electrochemical, and thermal stabilities, which are essential requirements for a supercapacitor electrode to obtain high‐performance. In this review, we discuss the recent advancements in the field of 2D materials such as MXenes, transition metal dichalcogenides, phosphorene, and their composites as electrodes in high‐performance supercapacitors. The electrochemical performances of these 2D materials‐based electrodes in symmetric, asymmetric, and battery‐type hybrid supercapacitors are reviewed. Emphasis is given to the recent developments on the battery‐type hybrid supercapacitors fabricated using these 2D materials‐based electrodes. The future perspectives of these materials in the next‐generation energy storage are also briefly discussed.

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Heterojunction engineering of MoSe2/MoS2 with electronic modulation towards synergetic hydrogen evolution reaction and supercapacitance performance

Cited by 167 publications

References 54 publications

Construction of CoO/Co‐Cu‐S Hierarchical Tubular Heterostructures for Hybrid Supercapacitors

Construction of CoO/Co‐Cu‐S Hierarchical Tubular Heterostructures for Hybrid Supercapacitors

Construction of CoO/Co‐Cu‐S Hierarchical Tubular Heterostructures for Hybrid Supercapacitors

Symmetric, Asymmetric, and Battery‐Type Supercapacitors Using Two‐Dimensional Nanomaterials and Composites

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