Details

Autor(en) / Beteiligte

• Hu, Rong
• Qiao, Hui
• Shu, Ying
• Li, Jun
• Huang, Zongyu
• Tao, Jiayou
• Qi, Xiang

Titel

Liquid-Exfoliated Molybdenum Telluride Nanosheets for High-Performance Supercapacitors

Ist Teil von

• Journal of electronic materials, 2021-04, Vol.50 (4), p.2277-2286

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Two-dimensional (2D) MoTe 2 nanomaterials have emerged as a promising candidate for constructing excellent supercapacitors due to their high capacitive performance. Recent studies have revealed that MoTe 2 has broad prospects as an active material in supercapacitors, although its strict requirements in terms of the external environment and complex preparation process remain serious obstacles to its practical application. Toward this end, MoTe 2 nanosheets (NSs) were prepared by a facile and inexpensive liquid-phase exfoliation approach for the fabrication of MoTe 2 electrodes. The results show that the MoTe 2 NSs exhibit significantly improved electrochemical performance, with a specific capacitance (859 F g −1 ) more than three times that of bulk MoTe 2 (271 F g −1 ) at a current density of 1 A g −1 . In addition, the MoTe 2 -based electrode showed excellent cycle stability and maintained excellent specific capacitance (92.7% of the initial value) after 1000 cycles under the working condition of a current density of 10 A g −1 . This study describes a fundamental investigation on the energy storage and conversion properties of 2D layered materials.