Journal
APPLIED SURFACE SCIENCE
Volume 481, Issue -, Pages 33-39Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2019.03.073
Keywords
MOFs; Iron sulfides; Anode; Lithium-ion batteries
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Funding
- National Natural Science Foundation of China [11547028, 51672049]
- Lishui High-Level Talents Training Funding Project [2016RC02]
- Zhejiang Province Public Welfare Technology Application Research Project [2017C31108]
- Open Fund of the Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials
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Rod-like porous composites of iron sulfides embedded in nitrogen-rich carbon have been synthesized through a simultaneous carbonization and sulfuration process of the Fe-based metal-organic framework (MIL-88) for the first time. The composites exhibit combined advantages of the porous structure, uniform distribution of iron sulfide nanoparticles and increased conductivity. As an anode material for lithium-ion batteries (LIBs), the composites show a high reversible capacity of 936.3 mAh g(-1) after 300 cycles and an exceptional high-rate capability (1128, 1056, 989, 912, 841 mAh g(-1 )at the current densities of 0.1, 0.2, 0.4, 0.8, and 1.6 A g(-1) respectively). The results indicate that the composites could be a promising candidate for anode materials in LIBs.
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