Direct Pyrolysis of Molybdophosphate-based Ionic Salt for One-step Synthesis of N,P Co-doped Carbon/Mo03-x Hybrids with Superior Lithium Storage Performance

作     者：ZHANG Lifeng SHEN Kechao JIANG Yongtao GUO Yu LIU Yi GUO Shouwu 

作者机构：School of Materials Science and EngineeringShaanxi University of Science and TechnologyXian 710021P.R.China Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi'an 710021P.R.China School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240P.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2019年第35卷第5期

页      面：842-847页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China(Nos.21203116,51602184) the Platform Construction of Energy Storage Materials and Devices in Shaanxi University of Science and Technology,China(No.0126-126021802) 

主　　题：Lithium ion battery Anode Molybdenum oxide Doped carbon Oxygen vacancy 

摘      要：N, P co-doped carbon/MoO3-x hybrids(NPC/MoO3-x) were synthesized via one-step pyrolysis of molybdophosphate-based ionic salt precursor. Doped carbon and oxygen vacancies(OVs) were synchronously introduced into the NPC/MoO3-x hybrids without any other redundant procedure. As anodes for lithium-ion batteries, the NPC/MoO3-x hybrids delivered a high initial Coulombic efficiency(ICE) of 81% as well as high charge capacity of 516 mA·h/g after 100 cycles at 1 A/g, indicating the excellent reversibility and rate capability. The enhanced lithium storage performance was attributed to the rational combination of surface engineering and OVs, which is beneficial to the more active sites and fast ionic/electronic transport.