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A WS2 Case Theoretical Study: Hydrogen Storage Performance Improved by Phase Altering.
- Source :
- Nanoscale Research Letters; 5/7/2020, Vol. 15 Issue 1, p1-8, 8p
- Publication Year :
- 2020
-
Abstract
- Hydrogen is a clean energy with high efficiency, while the storage and transport problems still prevent its extensive use. Because of the large specific surface area and unique electronic structure, two-dimensional materials have great potential in hydrogen storage. Particularly, monolayer 2H-WS<subscript>2</subscript> has been proven to be suitable for hydrogen storage. But there are few studies concerning the other two phases of WS<subscript>2</subscript> (1T, 1T′) in hydrogen storage. Here, we carried out first-principle calculations to investigate the hydrogen adsorption behaviors of all the three phases of WS<subscript>2</subscript>. Multiple hydrogen adsorption studies also evaluate the hydrogen storage abilities of these materials. Comprehensive analysis results show that the 1T′-WS<subscript>2</subscript> has better hydrogen storage performance than the 2H-WS<subscript>2</subscript>, which means phase engineering could be an effective way to improve hydrogen storage performance. This paper provides a reference for the further study of hydrogen storage in two-dimensional materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19317573
- Volume :
- 15
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Nanoscale Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- 143095021
- Full Text :
- https://doi.org/10.1186/s11671-020-03337-6