scholarly journals A rationally designed two-dimensional MoSe2/Ti2CO2 heterojunction for photocatalytic overall water splitting: simultaneously suppressing electron–hole recombination and photocorrosion

2021 ◽  
Author(s):  
Cen-Feng Fu ◽  
Xingxing Li ◽  
Jinlong Yang
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Rational Design ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Electron Hole ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting ◽  
Metal Dichalcogenides ◽  
Hole Recombination

The two challenges of electron–hole recombination and photocorrosion for two-dimensional transition metal dichalcogenides in the application of photocatalytic water splitting are simultaneously suppressed by rational design of heterojunctions.

scholarly journals Prediction of the structural and electronic properties of MoxTi1−xS2 monolayers via first principle simulations

2020 ◽  
Vol 10 ◽  
pp. 184798042095509
Author(s):  
Ankit Kumar Verma ◽  
Federico Raffone ◽  
Giancarlo Cicero
Keyword(s):  
Transition Metal ◽  
Electronic Properties ◽  
Transition Metal Dichalcogenides ◽  
Stable Phase ◽  
Two Dimensional ◽  
Electron Hole ◽  
Effective Electron ◽  
Wide Range ◽  
Structural And Electronic Properties ◽  
Metal Dichalcogenides

Two-dimensional transition metal dichalcogenides have gained great attention because of their peculiar physical properties that make them interesting for a wide range of applications. Lately, alloying between different transition metal dichalcogenides has been proposed as an approach to control two-dimensional phase stability and to obtain compounds with tailored characteristics. In this theoretical study, we predict the phase diagram and the electronic properties of Mo xTi1− xS2 at varying stoichiometry and show how the material is metallic, when titanium is the predominant species, while it behaves as a p-doped semiconductor, when approaching pure MoS2 composition. Correspondingly, the thermodynamically most stable phase switches from the tetragonal to the hexagonal one. Further, we present an example which shows how the proposed alloys can be used to obtain new vertical two-dimensional heterostructures achieving effective electron/hole separation.

Designing an efficient bifunctional electrocatalyst heterostructure

2021 ◽  
Author(s):  
Parrydeep Kaur Sachdeva ◽  
Shuchi Gupta ◽  
Chandan Bera
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Bifunctional Electrocatalyst ◽  
Metal Dichalcogenides

Oxygen and hydrogen evolutions are the two fundamental processes involved in the electrocatalytic water splitting. Two dimensional (2D) transition metal dichalcogenides (TMDCs) and graphene based materials have been regarded as...

Transition-metal dichalcogenides/Mg(OH)2 van der Waals heterostructures as promising water-splitting photocatalysts: a first-principles study

2019 ◽  
Vol 21 (4) ◽  
pp. 1791-1796 ◽  
Author(s):  
Yi Luo ◽  
Sake Wang ◽  
Kai Ren ◽  
Jyh-Pin Chou ◽  
Jin Yu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
First Principles ◽  
Van Der Waals ◽  
Transition Metal Dichalcogenides ◽  
Van Der Waals Heterostructures ◽  
Photocatalytic Water Splitting ◽  
First Principles Study ◽  
Metal Dichalcogenides

We found that the MoS2/Mg(OH)2 and WS2/Mg(OH)2 vdW heterostructures are promising for application in photocatalytic water splitting.

Prediction of an extremely long exciton lifetime in a Janus-MoSTe monolayer

Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19310-19315 ◽  
Author(s):  
Hao Jin ◽  
Tao Wang ◽  
Zhi-Rui Gong ◽  
Chen Long ◽  
Ying Dai
Keyword(s):  
Transition Metal ◽  
Separation Efficiency ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Electron Hole ◽  
Exciton Lifetime ◽  
Key Factor ◽  
Metal Dichalcogenides

The electron–hole separation efficiency is a key factor that determines the performance of two-dimensional (2D) transition metal dichalcogenides (TMDs) and devices.

Probing the active sites of newly predicted stable Janus scandium dichalcogenides for photocatalytic water-splitting

2019 ◽  
Vol 9 (18) ◽  
pp. 4981-4989 ◽  
Author(s):  
Xiaoyong Yang ◽  
Amitava Banerjee ◽  
Rajeev Ahuja
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Precious Metal ◽  
Active Sites ◽  
Transition Metal Dichalcogenides ◽  
Photocatalytic Water Splitting ◽  
Metal Dichalcogenides

The Janus structures of transition metal dichalcogenides with intrinsic dipoles have recently drawn attention as efficient candidates in the class of non-precious metal photocatalysts for water splitting.

scholarly journals Super-resolved Optical Mapping of Reactive Sulfur-Vacancies in Two-Dimensional Transition Metal Dichalcogenides

ACS Nano ◽  
2021 ◽  
Author(s):  
Miao Zhang ◽  
Martina Lihter ◽  
Tzu-Heng Chen ◽  
Michal Macha ◽  
Archith Rayabharam ◽  
...  
Keyword(s):  
Transition Metal ◽  
Optical Mapping ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides
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