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研究论文

层状二氧化锰的离子注入改性及其电化学性能的研究

  • 黄河宁 ,
  • 吕东平 ,
  • 黄行康 ,
  • 张启卫
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  • 三明学院化学与生物工程系,厦门大学固体表面物理化学国家重点实验室厦门大学化学系,厦门大学固体表面物理化学国家重点实验室厦门大学化学系,三明学院化学与生物工程系,厦门大学固体表面物理化学国家重点实验室厦门大学化学系 福建三明365004,厦门大学固体表面物理化学国家重点实验室,厦门大学化学系,福建厦门361005,福建厦门361005,福建厦门361005,福建三明365004,福建厦门361005

收稿日期: 2007-11-28

  修回日期: 2007-11-28

  网络出版日期: 2007-11-28

Ion-implanting Modification of Layered Manganese Dioxide and Its Electrochemical Performance

  • HUANG He-ning ,
  • Lü Dong-ping ,
  • HUANG Xing-kang ,
  • ZHANG Qi-wei
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  • (1.Department of Chemical and Biological Engineering,Collage of Sanming,Sanming 365004,Fujian,China,2.State Key Lab for Physical Chemistry of solid Surface,Department of Chemistry,Xiamen University,Xiamen 361005,Fujian,China

Received date: 2007-11-28

  Revised date: 2007-11-28

  Online published: 2007-11-28

摘要

应用高温热解法合成层状二氧化锰(δ-MnO2),借助离子注入技术在其表层注入钛离子,形成复合材料(δ-MnO2-Ti).材料结构及形貌由XRD、SEM及XPS表征,用恒电流充电仪测定其电化学性能.结果表明:注入钛离子后形成新的复合材料,其MnO2的层状结构没有被破坏,钛离子主要以Ti(Ⅳ)态嵌入MnO2结构.与δ-MnO2相比,改性后的δ-MnO2-Ti首次放电比容量和最大放电比容量均有明显提升.

本文引用格式

黄河宁 , 吕东平 , 黄行康 , 张启卫 . 层状二氧化锰的离子注入改性及其电化学性能的研究[J]. 电化学, 2007 , 13(4) : 436 -440 . DOI: 10.61558/2993-074X.1849

Abstract

Layered MnO2(δ-MnO2) was prepared by thermal decomposition of potassium permanganate.Ti was ion-implanted into such δ-MnO2 by physical techniques,forming a composite(δ-MnO2-Ti).These materials were characterized by XRD,SEM,XPS techniques and their electrochemical proprieties were investigated.The results showed that the layered structure of δ-MnO2 did not been destroyed after Ti ion implantation,and the implanted Ti element was mainly Ti4+ as indicated by XPS.Both of the first and the highest discharge specific capacities of the ion-implanted layered MnO2(δ-MnO2-Ti),compared to those of δ-MnO2,were improved significantly.

参考文献

[1]GUO Xiao-jian(郭晓健),LI Jie(李劼),LI Yi-xiao(李益孝),et al.Studies on synthesis and electrochem-ical performance of LixNi1/3Mn1/3Co1/3O2as cathode ma-terial for lithium ion batteries[J].Electrochemistry(inChinese),2006,(3),310-314. [2]Ammundsen B,Paulsen J.Novel lithium-ion cathodematerials based on layered manganese oxides[J].AdvMaler,2001,13:943-956. [3]SHAO Na(邵娜),HUANG He-ning(黄河宁),HUJing-bo(胡劲波),et al.Electrochemical behavior ofestazolam at a Pt/glassy carbon ion implantation modi-fied electrode[J].Chinese J Anal Chem(in Chinese),2003,31(5):527-531. [4]Komaba S,Kumagai N,Chiba S.Synthesis of layeredMnO2by calcinations of KMnO4for rechargeable lithiumcathode[J].Electrochim Acta,2000,46,(1):31-37. [5]HUJing-Bo(胡劲波),LI Qi-Long(李启隆).Studieson the voltammetric behavior of mitoxantrone and its ap-plication at the Ni/GC modified electrode[J].Chem JChin Univ(in Chinese),2001,22(3):380-384. [6]HUANG Xing-kang.Preparation characterization andelectrochemical performances of MnO2[D].Xiamen:Xiamen University,2006. [7]Bach S,Pereira-Ramos J P,Baffier N.Rechargeable3V Li cell using hydrated lamellar manganese oxide[J].J Electrochem Soc,1996,143,(11):3429-3434. [8]Department of Inorganic Chemistry in Dalian TechnologyUniversity.Inorganic chemistry[M].Beijing:HigherEducation Press,1990.12. [9]TONGQing-song(童庆松),YANGYong(杨勇).Storage performance of the doped Li-Mn-O spinels[J].J Funct Mater(in Chinese),2005,36(11):1737-1743. [10]LI Juan(李娟),GONG Liang-Yu(龚良玉),XIA Xi(夏熙).Synthesis of nanophaseα-PbO by solid statereaction and its influence on MnO2electrode[J].Chi-nese J Appl Chem(in Chinese),2001,18(4):263-268. [11]TONGQing-song(童庆松),GANHui(甘晖),LIAN Jin-ming(连锦明),et al.Research on the re-chargeability of bismuth(Ⅲ)doped electrolytic man-ganese dioxide[J].Battery Bimonthly(in Chinese),1997,27(1):14-17. [12]DINGShu-rong(丁淑荣),LIXin-hai(李新海),WANG Zhi-xing(王志兴),et al.Modification of elec-trolytic manganese dioxide[J].Electrochemistry(inChinese),2007,(2):165-170.
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