Faizan, Muhammad Hussain, Sajjad Islam, Mobinul Kim, Ji-Young Han, Daseul Bae, Jee Hwan Vikraman, Dhanasekaran Ali, Basit Abbas, Saleem Kim, Hyun-Seok Singh, Aditya Narayan Jung, Jongwan Nam, Kyung-Wan 2024-01-19T12:00:37Z 2024-01-19T12:00:37Z 2022-07-08 2022-06 2079-4991 https://pubs.kist.re.kr/handle/201004/115116 We explore a phase engineering strategy to improve the electrochemical performance of transition metal sulfides (TMSs) in anode materials for lithium-ion batteries (LIBs). A one-pot hydrothermal approach has been employed to synthesize MoS2 nanostructures. MoS2 and MoO3 phases can be readily controlled by straightforward calcination in the (200-300) degrees C temperature range. An optimized temperature of 250 degrees C yields a phase-engineered MoO3@MoS2 hybrid, while 200 and 300 degrees C produce single MoS2 and MoO3 phases. When tested in LIBs anode, the optimized MoO3@MoS2 hybrid outperforms the pristine MoS2 and MoO3 counterparts. With above 99% Coulombic efficiency (CE), the hybrid anode retains its capacity of 564 mAh g(-1) after 100 cycles, and maintains a capacity of 278 mAh g(-1) at 700 mA g(-1) current density. These favorable characteristics are attributed to the formation of MoO3 passivation surface layer on MoS2 and reactive interfaces between the two phases, which facilitate the Li-ion insertion/extraction, successively improving MoO3@MoS2 anode performance. English MDPI MoO3@MoS2 Core-Shell Structured Hybrid Anode Materials for Lithium-Ion Batteries Article 10.3390/nano12122008 1 Nanomaterials, v.12, no.12 Nanomaterials 12 12 Y scie scopus 000816458900001 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article FEW-LAYER MOS2 ASSISTED SYNTHESIS NANOSHEETS STORAGE PERFORMANCE ELECTRODES EVOLUTION NANOSTRUCTURES NANOCOMPOSITE COMPOSITES core-shell structure hybrid anode MoS2 MoO3 hydrothermal synthesis