Publication Date:
2014-09-03
Description:
Based on earlier results on the photocatalytic properties of MoS 2 , the 1T form of MoSe 2 , prepared by lithium intercalation and exfoliation of bulk MoSe 2 , has been employed for the visible-light induced generation of hydrogen. 1T-MoSe 2 is found to be superior to both 2H and 1T MoS 2 as well as 2H-MoSe 2 in producing hydrogen from water, the yield being in the 60–75 mmol h −1 g −1 range with a turn over frequency of 15–19 h −1 . First principles calculations reveal that 1T-MoSe 2 has a lower work function than 2H-MoSe 2 as well as 1T and 2H-MoS 2 , making it easier to transfer an electron from 1T-MoSe 2 for the production of H 2 .
Electronic ISSN:
2166-532X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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