Journal
RARE METALS
Volume 41, Issue 4, Pages 1142-1159Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-021-01875-1
Keywords
Two-dimensional transition metal; van der Waals heterostructure; Photoelectrode; Photoelectrochemical cell; Water splitting
Funding
- National Key R&D Program of China [2018YFA0306900, 2018YFA0209500]
- National Natural Science Foundation of China [21872114]
- Fundamental Research Funds for the Central Universities [20720210009]
Ask authors/readers for more resources
Hydrogen production by photoelectrochemical water splitting is an important method to convert solar energy into hydrogen energy. Two-dimensional transition metal dichalcogenides (TMDs) are considered promising photoelectrode materials with many advantages. This review introduces the mechanism of PEC water splitting, the advantages of 2D TMD-based heterostructures for photoelectrodes, and comprehensively reviews the design considerations for enhancing PEC efficiency.
Hydrogen production by photoelectrochemical (PEC) water splitting converts the inexhaustible supply of solar radiation to storable H-2 as clean energy and thus has received widespread attention. The efficiency of PEC water splitting is largely determined by the properties of the photoelectrodes. Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) are promising candidates for photoelectrodes due to their atomic layer thickness, tunable bandgap, large specific surface area, and high carrier mobility. Moreover, the construction of 2D TMDs heterostructures provides freedom in material design, which facilitates the further improvement of PEC water splitting. This review begins by describing the mechanism of PEC water splitting and the advantages of 2D TMD-based heterostructures for photoelectrodes. Then, the design considerations of the heterostructures for enhanced PEC efficiency are comprehensively reviewed with a focus on material selection, band engineering, surface modification, and long-term durability. Finally, current challenges and future perspectives for the development of photoelectrodes based on 2D TMDs heterostructures are addressed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available