| MnO2/CMSs复合材料的制备及其电化学性能 |
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| 引用本文： | 杨永珍,刘伟峰,郭明聪,刘旭光,许并社. MnO2/CMSs复合材料的制备及其电化学性能[J]. 复合材料学报, 2011, 0(4): 149-155 |
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| 作者姓名： | 杨永珍 刘伟峰 郭明聪 刘旭光 许并社 |
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| 作者单位： | 太原理工大学新材料界面科学与工程教育部重点实验室;太原理工大学新材料工程技术研究中心;太原理工大学化学化工学院; |
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| 基金项目： | 长江学者与创新团队发展计划(IRT0972); 国家自然科学基金(20971094); 山西省国际合作项目(2010081017); 山西省自然科学基金(2009011012-4); 山西省回国留学人员科研项目(2008-31); 山西省研究生优秀创新项目(20093009) |
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| 摘 要： | 采用0.1 mol/L的KMnO4和0.1 mol/L的HNO3对化学气相沉积法合成的碳微球(CMSs)进行氧化后,在CMSs表面包覆MnO2层得到MnO2/CMSs复合材料,用H2C2O4洗涤MnO2/CMSs复合材料得到氧化CMSs。通过场发射扫描电子显微镜、高分辨透射电子显微镜和X射线衍射仪等对产物的形貌和结构进行表征,观察了氧化前后CMSs在水和乙醇中的分散性,并采用循环伏安法测试了MnO2/CMSs复合材料的电化学性能。结果表明:经KMnO4和HNO3处理的CMSs表面包覆有MnO2层,MnO2的负载率约为60%。MnO2/CMSs复合材料在中性溶液中有一定的电容性能;经H2C2O4洗涤后得到氧化CMSs,其表面引入了含氧官能团,使其在水和乙醇中均表现出良好的分散性。
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| 关 键 词： | 碳微球 MnO2 改性 复合材料 电化学性能 |
Preparation and electrochemical property of MnO_2/carbon microsphere composite |
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| YANG Yongzhen,LIU Weifeng,Guo Mingcong,LIU Xuguang,XU Bingshe,Ministry of Education,.Research Center on Advanced Materials Science , Technology,Taiyuan University of Technology,.College of Chemistry , Chemical Engineering,Taiyuan ,China). Preparation and electrochemical property of MnO_2/carbon microsphere composite[J]. Acta Materiae Compositae Sinica, 2011, 0(4): 149-155 |
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| Authors: | YANG Yongzhen LIU Weifeng Guo Mingcong LIU Xuguang XU Bingshe Ministry of Education .Research Center on Advanced Materials Science Technology Taiyuan University of Technology .College of Chemistry Chemical Engineering Taiyuan China) |
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| Affiliation: | YANG Yongzhen1,2,LIU Weifeng1,3,Guo Mingcong1,LIU Xuguang1,XU Bingshe1,2(1.Key Laboratory of Interface Science and Engineering in Advanced Materials(Taiyuan University of Technology),Ministry of Education,2.Research Center on Advanced Materials Science and Technology,Taiyuan University of Technology,3.College of Chemistry and Chemical Engineering,Taiyuan 030024,China) |
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| Abstract: | The MnO2/CMSs composite was obtained by coating MnO2 onto the surface of carbon microspheres(CMSs),which were prepared by chemical vapor deposition and oxidized by a mixture of 0.1mol/L KMnO4 and 0.1mol/L HNO3.And then MnO2/CMSs composite was washed by H2C2O4 to obtain oxidized-CMSs.The morphology and structure of all samples were characterized by FESEM,TEM,XRD and so on.The dispersion of MnO2/CMSs in water and ethanol was also investigated.The electrochemical property of the composite was measured by cycli... |
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| Keywords: | carbon microspheres(CMSs) MnO2 modification composite electrochemical property |
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