Recent Progress and Approaches on Transition Metal Chalcogenides for Hydrogen Production

Abstract

Development of efficient and affordable photocatalysts is of great significance for energy production and environmental sustainability. Transition metal chalcogenides (TMCs) with particle sizes in the 1–100 nm have been used for various applications such as photocatalysis, photovoltaic, and energy storage due to their quantum confinement effect, optoelectronic behavior, and their stability. In particular, TMCs and their heterostructures have great potential as an emerging inexpensive and sustainable alternative to metal-based catalysts for hydrogen evolution. Herein, the methods used for the fabrication of TMCs, characterization techniques employed, and the different methods of solar hydrogen production by using different TMCs as photocatalyst are reviewed. This review provides a summary of TMC photocatalysts for hydrogen production.

An efficient transition metal chalcogenide sensor for monitoring respiratory alkalosis

“…Low overpotential, high current density, long-term stability, and economic cost-effectiveness in raw material availability and processing conditions are expected characteristics of an effective and realistically possible electrocatalyst. (Haque et al 2017 ; Das et al 2018 , 2019 ; Shanmugaratnam et al 2019 , 2021 ; Sajjad et al 2021 )…”

Promoting water-splitting reaction on TiO2/gCN with Pd/SrO cocatalysts: H2 evolution in the absence of a sacrificial reagent

“…12 The fusion of distinct quantum materials to create efficient heterostructures is drawing attention in the generation of maximum amounts of H 2 from photocatalytic watersplitting reactions. 13 Recently, different heterostructures have been introduced for water splitting, e.g., GaTe/ZnI 2 , 14 PG/GeP 2 and PG/SiP 2 , 15 ZnO/ZnS, 16 BiVO 4 /Zn 3 V 2 O 8 , 17 NiS/NiS 2 , 18 2Dporous Co-Mo nitrides, 19 BiVO 4 /CoFe MOF, 20 SnO 2 @MoS 2 , 21 C 2 N/ZnSe, 22 Ru@RuO 2 , 23 covalent triazine framework, 24 CdS/ quantum dots, 25,26 MXene supported catalysts, 27 transition metal chalcogenides, 28 nanosphere heterostructures, 29 etc. Despite some benefits, there have been reports of several drawbacks associated with them, such as wide band gap, inadequate stability, toxicity and high price.…”

Well-Separated Photoinduced Charge Carriers on Hydrogen Production Using NiS2/TiO2 Nanocomposites

“…The photon energy is harvested and converted into chemical fuels within the molecules of H 2 via a solar-driven water splitting process called photocatalytic water splitting. , Hydrogen produced by the photoreduction of water is an attractive reaction that will contribute to an ultimate green, sustainable chemistry and does not cause any unwanted emissions like carbon dioxide (CO 2 ) or carbon monoxide (CO), resulting in an energy revolution. , It is a multiple electron and multiple proton process. The sun shines on a catalyst which is dispersed in a pool of water, and then hydrogen gas is readily evolved; but the separation of the evolved H 2 from O 2 is disadvantageous for the photocatalytic process.…”