Molten salt synthesis of α-MnO_(2)/Mn_(2)O_(3) nanocomposite as a high-performance cathode material for aqueous zinc-ion batteries

作     者：Aixiang Huang Weijun Zhou Anran Wang Minfeng Chen Qinghua Tian Jizhang Chen Aixiang Huang;Weijun Zhou;Anran Wang;Minfeng Chen;Qinghua Tian;Jizhang Chen

作者机构：College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037JiangsuChina Department of ChemistrySchool of SciencesZhejiang Sci-Tech UniversityHangzhou 310018ZhejiangChina Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry UniversityNanjing 210037JiangsuChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第3期

页      面：475-481页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：funded by the National Natural Science Foundation of China(No.51902165) the Natural Science Foundation of Jiangsu Province(No.BK20170917) the Scientific Research Foundation for High-Level Talents of Nanjing Forestry University(No.GXL2016023) the Program of High-Level Talents in Six Industries of Jiangsu Province(No.XCL-040) the Jiangsu Specially-Appointed Professor Program 

主　　题：Manganese oxides Molten salt synthesis Nanostructured composites Aqueous batteries Zinc ion storage 

摘      要：Thanks to low cost,high safety,and large energy density,aqueous zinc-ion batteries have attracted tremendous interest ***,it remains a challenge to develop high-performance cathode materials with an appropriate method that is easy to realize massive ***,we use a molten salt method to synthesize nanostructured manganese *** crystalline phases of the manganese oxides can be tuned by changing the amount of reduced graphene oxide added to the reactant *** is found that the α-MnO_(2)/Mn_(2)O_(3) nanocomposite with the largest mass ratio of Mn_(2)O_(3) delivers the best electrochemical performances among all the *** its rate capability and cyclability can be significantly improved by modifying the Zn anode with carbon black coating and nanocellulose *** this situation,the nanocomposite can deliver high discharging capacities of 322.1 and 213.6 mAh g^(-1) at 0.2 and 3 Ag^(-1),*** 1000 cycles,it can retain 86.2% of the capacity at the 2 nd ***,this nanocomposite holds great promise for practical applications.