Enhancing the crystalline degree of carbon nanotubes by acid treatment, air oxidization and heat treatment

作     者：ChenshaLi BaoyouZhang XingjuanChen XiaoqingHu JiLiang 

作者机构：DepartmentofMechanicalEngineeringTsinghuaUniversityBeijing100084China CenterforAnalysisandMeasurementHarbinInstituteofTechnologyHarbin150001China ChemistryEngineeringDepartmentHarbinengineeringuniversityHarbin150001China TheStatekeyLabofNewCeramicsandFineProcessingofTsinghuaUniversityBeijing100084China 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2005年第12卷第1期

页      面：38-42页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 070205[理学-凝聚态物理] 070301[理学-无机化学] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：ThisworkwasfinanciallysupportedbytheStateKeyProjectforFundamentalResearchofMOST China(No.G20000264-04) 

主　　题：carbon nanotubes acid treatment air oxidization heat treatment 

摘      要：Three approaches of treating carbon nanotubes (CNTs) including acid treatment, air oxidization and heat treatment at high temperature were studied to enhance the crystalline degree of carbon nanotubes. High temperature heat-treatment elevates the crystalline degree of carbon nanotubes. Acid treatment removes parts of amorphous carbonaceous matter through its oxidization effect. Air oxidization disperses carbon nanotubes and amorphous carbonaceous matter. The treatment of combining acid treatment with heat-treatment further elevates the crystalline degree of carbon nanotubes comparing with acid treatment or heat-treatment. The combination of the three treatments creates the thorough effects of enhancing the crystalline degree of carbon nanotubes.