朱文均,胡跃辉,余永志.生物模板法制备MnO/C复合材料及其储锂性能研究[J].稀有金属材料与工程,2020,49(4):1273~1276.[Wenjun Zhu,Yuehui Hu,Yongzhi Yu.Biotemplate synthesis of MnO/C composite as high-performance anode for high lithium ion batteries[J].Rare Metal Materials and Engineering,2020,49(4):1273~1276.]
生物模板法制备MnO/C复合材料及其储锂性能研究
投稿时间:2019-04-26  修订日期:2019-09-26
中文关键词:  生物模板  氧化锰/碳  复合材料  负极  锂离子电池
基金项目:国家自然科学基金(51802131)、江西省青年基金(20171BAB216015)和江西省教育厅科学技术研究(GJJ170782)资助项目
中文摘要:
      以天然的柚子皮为生物模板,高锰酸钾为锰源,通过化学浴(CBD)方法和后续煅烧处理成功制备MnO/碳(MnO/C)复合材料。采用X射线衍射(XRD),热重-差热分析法(TG-DTA),拉曼(Raman),扫描电子显微镜(SEM)和透射电子显微镜(TEM)对材料的物相组成、形貌和微结构进行表征。结果表明柚子皮模板原位转变为碳基体,同时MnO颗粒均匀负载于碳基体形成MnO/C复合材料,其中碳含量约为30%。电化学测试表明该复合材料具有优异的储锂性能,在0.2 A/g电流密度下循环100次后可逆容量依旧保持在664 mAh/g,在3 A/g大电流密度下,可逆容量仍有441 mAh/g。
Biotemplate synthesis of MnO/C composite as high-performance anode for high lithium ion batteries
英文关键词:Bio-template  Manganese monoxide/Carbon  Composite material  Anode  Lithium-ion batteries
英文摘要:
      In this paper, MnO/carbon (MnO/C) composite was successfully synthesized by a facile biotemplating method combine with chemical bath deposition (CBD) method followed by calcination treatment. The natural pomelo peel and potassium permanganate were used as the biotemplate and potassium permanganate source. The phase composition, morphology and microstructure were investigated by XRD, TG-DTA, Raman, SEM and TEM, respectively. The result indicates that the pomelo peel was transformed to in-situ carbon matrix with a quality content of 30%, and MnO nanoparticles were uniformly dispersed onto the carbon matrix. The MnO/C composite presents excellent lithium-storage property, which exhibits a high reversible specific capacity of 644 mAh/g at a current density of 0.2 A/g after 100 cycles. Even at a high current density of 3 A/g, a remarkable reversible capacity of 430 mAh/g could still be maintained.
作者单位E-mail
朱文均 景德镇陶瓷大学 zwj2730038@126.com 
胡跃辉 景德镇陶瓷大学  
余永志 景德镇陶瓷大学  
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