中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 会议论文
学科主题: 物理化学
题名: Non-catalytic synthesis of vertically aligned CNTs arrays and metal functionalization
作者: Wang Z(王珍) ;  Xu XJ(许学俊) ;  Zhang HB(张洪波) ;  Li WL(李WL) ;  Gao M(高M) ;  Fu Q(傅强) ;  Bao XH(包信和)
会议名称: 18th International Vacuum Congress
会议日期: 2010-8-23
出版日期: 2010-08-23
会议地点: 中国
通讯作者: 傅强 ;  包信和
部门归属: 五室
主办者: 中国真空学会
摘要: Because of superior electrical, structural and mechanical properties, carbon nanotubes (CNTs) have shown great potential applications in electronic industry, field emissions, gas sensors and catalysis. However, conventional synthesis methods always need metal particles as catalyst to decompose hydrocarbon. It is difficult to gain pure CNTs even after complex post-synthesis treatments. Herein, we display a non-catalytic synthesis method of vertically aligned CNTs arrays by SiC thermal decomposition. The CNTs growth mechanism of SiC thermal decomposition was investigated by annealing SiC crystals under different atmospheres, including inert, oxidative and reductive atmospheres. Thick surface carbon structures were studied by SEM, TEM and Raman spectra. The CNWs (carbon nanowalls) structure composed of partially curved carbon sheets can form in inert atmosphere. In reductive atmosphere, similar CNWs structure, but with better graphitic quality were observed. Well-aligned CNTs arrays standing vertically on the surface can only be observed in oxidative atmosphere, such as O2, H2O, alcohols, aethers and so on. Most of them are close-ended MWNTs with small inner diameters, 4 - 6 nm. By comparing CNTs structures prepared in different oxygen-containing gases, it is demonstrated that strong oxidative atmosphere will be more advantageous in CNTs growth. To further explore the application of CNTs in catalysis, we functionalized the CNTs with metal particles, such as Pt and Ni. Because of the controlled etching of CNTs, metal particles can be embedded into CNTs arrays by annealing in 1atm H2. The etching process was studied by SEM and AR-XPS.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114300
Appears in Collections:中国科学院大连化学物理研究所_会议论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Wang Z,Xu XJ,Zhang HB,et al. Non-catalytic synthesis of vertically aligned CNTs arrays and metal functionalization[C]. 见:18th International Vacuum Congress. 中国. 2010-8-23.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [王珍]'s Articles
 [许学俊]'s Articles
 [张洪波]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [王珍]‘s Articles
 [许学俊]‘s Articles
 [张洪波]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace