Transition metal dichalcogenide-based composites for hydrogen production

In order to explore the photocatalytic hydrogen production efficiency of MoS2/WSe2 heterostructure (A2-MWS4) as photocatalysts, It is highly desirable to study the photogenerated exciton dissociation related to photocatalysis. The electronic...

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Wrinkle facilitated hydrogen evolution reaction of vacancy-defected transition metal dichalcogenide monolayers

Nanoscale ◽

10.1039/d1nr06417g ◽

2021 ◽

Author(s):

Mingjie Pu ◽

Yufeng Guo ◽

Wanlin Guo

Keyword(s):

Hydrogen Production ◽

Transition Metal ◽

Hydrogen Evolution ◽

Hydrogen Evolution Reaction ◽

First Principles ◽

Transition Metal Dichalcogenides ◽

Transition Metal Dichalcogenide ◽

First Principles Calculations ◽

Catalytic Activities ◽

Metal Dichalcogenides

Utilizing transition metal dichalcogenides (TMDs) as catalysts in hydrogen evolution reaction (HER) exhibits a promising prospect for hydrogen production. Here by first-principles calculations we reveal that the catalytic activities of...

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CoS2/TiO2 Nanocomposites for Hydrogen Production under UV Irradiation

Materials ◽

10.3390/ma12233882 ◽

2019 ◽

Vol 12 (23) ◽

pp. 3882 ◽

Cited By ~ 3

Author(s):

Sivagowri Shanmugaratnam ◽

Dhayalan Velauthapillai ◽

Punniamoorthy Ravirajan ◽

Alfred Christy ◽

Yohi Shivatharsiny

Keyword(s):

Hydrogen Production ◽

Transition Metal ◽

Uv Irradiation ◽

Quantum Confinement Effect ◽

Photogenerated Electron ◽

Metal Chalcogenides ◽

Transition Metal Dichalcogenide ◽

Nanocrystalline Tio2 ◽

Hydrothermal Approach ◽

Production Efficiencies

Transition metal chalcogenides have intensively focused on photocatalytic hydrogen production for a decade due to their stronger edge and the quantum confinement effect. This work mainly focuses on synthesis and hydrogen production efficiencies of cobalt disulfide (CoS2)-embedded TiO2 nanocomposites. Materials are synthesized by using a hydrothermal approach and the hydrogen production efficiencies of pristine CoS2, TiO2 nanoparticles and CoS2/TiO2 nanocomposites are compared under UV irradiation. A higher amount of hydrogen production (2.55 mmol g−1) is obtained with 10 wt.% CoS2/TiO2 nanocomposite than pristineTiO2 nanoparticles, whereas no hydrogen production was observed with pristine CoS2 nanoparticles. This result unveils that the metal dichalcogenide–CoS2 acts as an effective co-catalyst and nanocrystalline TiO2 serves as an active site by effectively separating the photogenerated electron–hole pair. This study lays down a new approach for developing transition metal dichalcogenide materials with significant bandgaps that can effectively harness solar energy for hydrogen production.

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Visualization of Multifractal Superconductivity in a Two-Dimensional Transition Metal Dichalcogenide in the Weak-Disorder Regime

Nano Letters ◽

10.1021/acs.nanolett.0c01288 ◽

2020 ◽

Vol 20 (7) ◽

pp. 5111-5118 ◽

Cited By ~ 8

Author(s):

Carmen Rubio-Verdú ◽

Antonio M. Garcı́a-Garcı́a ◽

Hyejin Ryu ◽

Deung-Jang Choi ◽

Javier Zaldı́var ◽

...

Keyword(s):

Transition Metal ◽

Transition Metal Dichalcogenide ◽

Two Dimensional ◽

Weak Disorder

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Angle Dependence of Interlayer Coupling in Twisted Transition Metal Dichalcogenide Heterobilayers

The Journal of Physical Chemistry C ◽

10.1021/acs.jpcc.0c09372 ◽

2020 ◽

Author(s):

W. T. Geng ◽

V. Wang ◽

J. B. Lin ◽

T. Ohno ◽

J. Nara

Keyword(s):

Transition Metal ◽

Interlayer Coupling ◽

Transition Metal Dichalcogenide ◽

Angle Dependence

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COx-free hydrogen production via ammonia decomposition over mesoporous Co/Al2O3 catalysts with highly dispersed Co species synthesized by a facile method

Dalton Transactions ◽

10.1039/d0dt03262j ◽

2021 ◽

Author(s):

Yingqiu Gu ◽

Di Xu ◽

Yun Huang ◽

Zhouyang Long ◽

Guojian Chen

Keyword(s):

Fuel Cells ◽

Hydrogen Production ◽

Transition Metal ◽

Transition Metals ◽

Ammonia Decomposition ◽

Metal Catalyst ◽

Facile Synthesis ◽

Transition Metal Catalyst ◽

Highly Dispersed ◽

Free Hydrogen

Transition metals have been considered as potential catalysts for ammonia decomposition to produce COx-free hydrogen for fuel cells. However, the facile synthesis of transition metal catalyst with small size active...

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Identification of Point Defects in Atomically Thin Transition-Metal Dichalcogenide Semiconductors as Active Dopants

Nano Letters ◽

10.1021/acs.nanolett.0c05135 ◽

2021 ◽

Vol 21 (8) ◽

pp. 3341-3354

Author(s):

Seung-Young Seo ◽

Dong-Hwan Yang ◽

Gunho Moon ◽

Odongo F. N. Okello ◽

Min Yeong Park ◽

...

Keyword(s):

Transition Metal ◽

Point Defects ◽

Transition Metal Dichalcogenide

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Second-harmonic generation enhancement in monolayer transition-metal dichalcogenides by using an epsilon-near-zero substrate

Nanoscale Advances ◽

10.1039/d0na00779j ◽

2021 ◽

Vol 3 (1) ◽

pp. 272-278

Author(s):

Pilar G. Vianna ◽

Aline dos S. Almeida ◽

Rodrigo M. Gerosa ◽

Dario A. Bahamon ◽

Christiano J. S. de Matos

Keyword(s):

Dielectric Constant ◽

Transition Metal ◽

Harmonic Generation ◽

Nonlinear Effect ◽

Second Harmonic ◽

2D Materials ◽

Transition Metal Dichalcogenides ◽

Transition Metal Dichalcogenide ◽

Metal Dichalcogenides ◽

Epsilon Near Zero

The scheme illustrates a monolayer transition-metal dichalcogenide on an epsilon-near-zero substrate. The substrate near-zero dielectric constant is used as the enhancement mechanism to maximize the SHG nonlinear effect on monolayer 2D materials.

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