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Molybdenum Disulfide: Lithium Intercalation Compound Dramatically Influences the Electrochemical Properties of Exfoliated MoS 2 (Small 5/2015)

2015; Wiley; Volume: 11; Issue: 5 Linguagem: Inglês

10.1002/smll.201570030

1613-6829

Adriano Ambrosi, Zdeněk Sofer, Martin Pumera,

Chalcogenide Semiconductor Thin Films

Exfoliation of layered structures such as MoS2 (exemplified here by layered structure of Antelope Canyon, USA) strongly depends on the intercalator used. As found by M. Pumera and co-workers on page 605, n-Bu-Li and t-Bu-Li produce a more efficient exfoliation of MoS2 than Me-Li. Exfoliation with n-Bu-Li and t-Bu-Li gives rise to MoS2 sheets more catalytic for the hydrogen evolution reaction than those obtained with Me-Li. Similar results are obtained testing their capacitive behavior, which is distinctively larger for MoS2 exfoliated with n-Bu-Li and t-Bu-Li than MoS2 exfoliated with Me-Li.