Two-Dimensional Material Molybdenum Disulfides as Electrocatalysts for Hydrogen Evolution

Yang, Lei; Liu, Ping; Li, Jing; Xiang, Bin

doi:10.3390/catal7100285

Cited by 77 publications

(44 citation statements)

References 85 publications

(170 reference statements)

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“…MoS 2 layers can be significantly activated, functionalized, and modified. The irradiation-induced defects are beneficial for several applications including: solar cells [19,[194][195][196], batteries [54,197,198], supercapacitors [199], thin film transistors [15,16,80,86,110,138,[200][201][202][203][204][205], sensors [17,55,56,106,[206][207][208][209][210], hydrogen generators [8,47,50,69,134,176,177,183,211,212], and applications in thermoelectrics [213][214][215][216], piezotronics [63], valleytronics [65], and environments [45,49]. MoS 2 2D layers were damaged simultaneously under ...…”

Section: Discussionmentioning

confidence: 99%

“…The chemical [29,41] and physical properties [42][43][44] of MoS 2 few-layers were recently reviewed. These novel properties of MoS 2 2D materials make them suitable 2D candidates in environmental applications [45,46], catalysts (such as electrocatalysts [47][48][49][50][51] and photocatalysts [48][49][50][51][52][53]), energy storage (such as lithium ion batteries [48,49,54], supercapacitors [49,54], elastic energy [12], and solar cells [49]), as well as sensing [55]. MoS 2 mono-layers were also fabricated into ultrasensitive photodetectors [56,57], and integrated circuits to perform the NOR logic operation [58], besides being employed in drug delivery [59], thermoelectrics [60,61], piezotronics [62,63], osmotic nanopower generators [64], and valleytronics [65].…”

Section: Mos 2 2d Materialsmentioning

confidence: 99%

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Recent Progress on Irradiation-Induced Defect Engineering of Two-Dimensional 2H-MoS2 Few Layers

et al. 2019

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Atom-thick two-dimensional materials usually possess unique properties compared to their bulk counterparts. Their properties are significantly affected by defects, which could be uncontrollably introduced by irradiation. The effects of electromagnetic irradiation and particle irradiation on 2H MoS 2 two-dimensional nanolayers are reviewed in this paper, covering heavy ions, protons, electrons, gamma rays, X-rays, ultraviolet light, terahertz, and infrared irradiation. Various defects in MoS 2 layers were created by the defect engineering. Here we focus on their influence on the structural, electronic, catalytic, and magnetic performance of the 2D materials. Additionally, irradiation-induced doping is discussed and involved.

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Section: Discussionmentioning

confidence: 99%

Section: Mos 2 2d Materialsmentioning

confidence: 99%

Recent Progress on Irradiation-Induced Defect Engineering of Two-Dimensional 2H-MoS2 Few Layers

et al. 2019

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“…Within a broad space of materials that have been explored for electrocatalytic applications, several 2D and quasi‐2D structures have recently been reported to exhibit superior properties for the hydrogen evolution reaction and other core electrochemical reactions . In particular, molybdenum disulfide (MoS 2 ) and a few members of transition metal dichalcogenides (TMDCs) in contact with ionic‐liquid (IL) electrolyte have recently shown a great promise to overcome fundamental electronic and thermokinetic limitations for CO 2 reduction reaction, as well as the oxygen reduction and evolution reactions (ORR/OER) .…”

Section: Driving Forces (δG) Reorganization Energies (λ) Activationmentioning

confidence: 99%

New Class of Electrocatalysts Based on 2D Transition Metal Dichalcogenides in Ionic Liquid

et al. 2018

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electrochemical reactions. [1][2][3][4][5][6][7][8][9][10][11] In particular, molybdenum disulfide (MoS 2 ) and a few members of transition metal dichalcogenides (TMDCs) in contact with ionic-liquid (IL) electrolyte have recently shown a great promise to overcome fundamental electronic and thermokinetic limitations for CO 2 reduction reaction, as well as the oxygen reduction and evolution reactions (ORR/OER). [7][8][9][10] These studies have been conducted on a limited number of TMDCs, and the majority of other TMDCs with a wide range of electronic and potentially catalytic properties have not been investigated. In this study, we report synthesis and characterization of a wide range of TMDCs including sulfides, selenides, and tellurides of group V and VI transition metals and study their electrochemical performance in aprotic medium with Li salts. We employ a wide suite of characterization techniques, such as scanning transmission electron microscopy (STEM), energy dispersive spectroscopy (EDS), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), dynamic light scattering (DLS), and atomic forceThe optimization of traditional electrocatalysts has reached a point where progress is impeded by fundamental physical factors including inherent scaling relations among thermokinetic characteristics of different elementary reaction steps, non-Nernstian behavior, and electronic structure of the catalyst. This indicates that the currently utilized classes of electrocatalysts may not be adequate for future needs. This study reports on synthesis and characterization of a new class of materials based on 2D transition metal dichalcogenides including sulfides, selenides, and tellurides of group V and VI transition metals that exhibit excellent catalytic performance for both oxygen reduction and evolution reactions in an aprotic medium with Li salts. The reaction rates are much higher for these materials than previously reported catalysts for these reactions. The reasons for the high activity are found to be the metal edges with adiabatic electron transfer capability and a cocatalyst effect involving an ionic-liquid electrolyte. These new materials are expected to have high activity for other core electrocatalytic reactions and open the way for advances in energy storage and catalysis. ElectrocatalystsThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

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“…However, as crystals grow larger, elastic energy becomes nonnegligible, resulting in concave shapes since elastic relaxation lowers the formation energy of the crystal by increasing its perimeter. This mechanism influences the details of grain boundaries (GBs), crystal structures, and edge‐termination‐dependent properties of polycrystalline 2D films (e.g., higher hydrogen evolution activity of Mo‐edges in MoS 2 ), especially for large‐area transition metal dichalcogenide (TMDC) monolayers grown by chemical vapor deposition (CVD) as will be detailed later. Finally, the surface structure of a 3D material is the lowest free energy structure that is kinetically accessible under the growth conditions.…”

Section: Surface and Interface Phenomenamentioning

confidence: 99%

Interface Characterization and Control of 2D Materials and Heterostructures

2018

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2D materials and heterostructures have attracted significant attention for a variety of nanoelectronic and optoelectronic applications. At the atomically thin limit, the material characteristics and functionalities are dominated by surface chemistry and interface coupling. Therefore, methods for comprehensively characterizing and precisely controlling surfaces and interfaces are required to realize the full technological potential of 2D materials. Here, the surface and interface properties that govern the performance of 2D materials are introduced. Then the experimental approaches that resolve surface and interface phenomena down to the atomic scale, as well as strategies that allow tuning and optimization of interfacial interactions in van der Waals heterostructures, are systematically reviewed. Finally, a future outlook that delineates the remaining challenges and opportunities for 2D material interface characterization and control is presented.

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Two-Dimensional Material Molybdenum Disulfides as Electrocatalysts for Hydrogen Evolution

Cited by 77 publications

References 85 publications

Recent Progress on Irradiation-Induced Defect Engineering of Two-Dimensional 2H-MoS2 Few Layers

Recent Progress on Irradiation-Induced Defect Engineering of Two-Dimensional 2H-MoS2 Few Layers

New Class of Electrocatalysts Based on 2D Transition Metal Dichalcogenides in Ionic Liquid

Interface Characterization and Control of 2D Materials and Heterostructures

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