MOF-derived α-MnSe/C composites as anode materials for Li-ion batteries. Issue 17 (1st December 2019)

• Record Type: Journal Article
• Authors: Li, Zongyang; Liu, Hongdong; Huang, Jiamu; Zhang, Lei
• Is Part Of: Ceramics international. Volume 45:Issue 17(2019)Part B
• Page Start: 23765
• Page End: 23771
• Publication Date: 2019-12-01
• Subjects: Lithium-ion batteries -- Anode materials -- α-MnSe -- Metal organic framework; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.08.093
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: As a member of transition metal chalcogenides (TMCs), α-MnSe is a prospective anode material for lithium-ion batteries (LIBs). However, there are few studies about its application in LIBs. In this work, two unique structures of α-MnSe/carbon nanofiber (α-MnSe/CNF) and α-MnSe/C microspheres were prepared using manganese-based metal organic framework (Mn-BTC) as forerunner that reacted with Se powder at elevated temperature. The MnSe nanoparticles of in-situ formation are uniformly anchored on CNF originated from the organic ligands of Mn-BTC. As a result, α-MnSe/CNF and α-MnSe/C microspheres exhibit excellent lithium storage performance. The α-MnSe/CNF delivers specific capacities of 845.54 mAh g −1 after 100 cycles at 0.1 A g −1 . Even at 1.0 A g −1, it still remains a reversible capacity of 544.6 mAh g −1 after 500 cycles. As for α-MnSe/C microspheres, the corresponding capacities are 784.82 and 516.86 mAh g −1, respectively.