Metal–Organic Frameworks Derived Okra-like SnO2 Encapsulated in Nitrogen-Doped Graphene for Lithium Ion Battery

• DOI: 10.1021/acsami.7b04584
• Publication Date: 2017-04-10T16:24:21Z
• Authors: Xiangyang Zhou; Sanmei Chen; Juan Yang; Tao Bai; Yongpeng Ren; Hangyu Tian
• Keywords: Lithium metal; Organic radical battery

A facile process is developed to prepare SnO2-based composites through using metal–organic frameworks (MOFs) as precursors. The nitrogen-doped graphene wrapped okra-like SnO2 (SnO2@N-RGO) are successfully synthesized for the first time by Sn-based (Sn-MOF) When utilized an anode material lithium-ion batteries, SnO2@N-RGO possess a remarkably superior reversible capacity of 1041 mA h g–1 at constant current 200 after 180 charge–discharge processes and excellent rate capability. performance can be primarily ascribed unique structure 1D in which actually composed great number primary crystallites numerous well-defined internal voids, effectively alleviate huge volume change SnO2, facilitate transport storage lithium ions. Besides, structural stability acquires further improvement when N-doped graphene. Similarly, this synthetic strategy employed synthesize other high-capacity metal-oxide-based starting from various frameworks, exhibiting promising application novel electrode field batteries.