Chemical Engineering Journal 336 (2018) 427–435 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Constructing yolk-shell MnO@C nanodiscs through a carbothermal reduction process for highly stable lithium storage a,b a,b, a a,b a,b a,b Yu-Chen Xiao , Cheng-Yan Xu , Xue-Yin Sun , Yi Pei , Pan-Pan Wang , Fei-Xiang Ma , a,b, Liang Zhen School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China MOE Key Laboratory of Micro-System and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin 150080, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: The application of MnO as anode material for lithium-ion batteries has been largely hindered by its unsatisﬁed MnO rate capacity and short cycle life. To address this problem, yolk-shell MnO@C nanodiscs were successfully Yolk-shell structure prepared through a novel carbothermal reduction approach. Polydopamine coated Zn Mn CO nanodiscs 0.5 0.5 3 Anode materials were annealed at 700 °C in Ar atmosphere, during which polydopamine-derived amorphous carbon was utilized Lithium ion batteries 2+ 0 to reduce Zn to Zn , leading to the evaporation of Zn. As a result, large void space between the MnO cores and carbon shells was formed, which could eﬀectively accommodate
Chemical Engineering Journal – Elsevier
Published: Mar 15, 2018
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