Journal
SMALL
Volume 18, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202105752
Keywords
electrocatalysis; heterostructures; Li; O-2; (2) heteroepitaxial growth; Li-O; (2) batteries; MoS; (2); CoS; (2)
Categories
Funding
- China Postdoctoral Science Foundation [2020M672054]
- Natural Science Foundation of Shandong Province [ZR2020QB122]
- Young Scholars Program of Shandong University [2019WLJH21]
- Tianjin Natural Science Foundation [18JCYBJC41800]
- Tianjin Science and Technology Program [18ZXJMTG00300]
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Constructing CoS2 nanoparticles decorated on MoS2 nanorods can act as superior bifunctional catalyst, enhancing the performance of Li-O-2 batteries.
Developing an excellent bifunctional catalyst is essential for the commercial application of Li-O-2 batteries. Heterostructures exhibit great application potential in the field of energy catalysis because of the accelerated charge transfer and increased active sites on their surfaces. In this work, CoS2 nanoparticles decorated on MoS2 nanorods are constructed and act as a superior cathode catalyst for Li-O-2 batteries. Coupling MoS2 and CoS2 can not only synergistically enhance their electrical conductivity and electrochemical activity, but also promote the heteroepitaxial growth of discharge products on the heterojunction interfaces, thus delivering high discharge capacity, stable cycle performance, and good rate capability.
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