氮掺杂碳纳米管的无金属催化剂合成和表征

doi:10.3724/SP.J.1077.2011.00881

无机材料学报 ›› 2011, Vol. 26 ›› Issue (8): 881-884.DOI: 10.3724/SP.J.1077.2011.00881

氮掺杂碳纳米管的无金属催化剂合成和表征

王灿¹, 詹亮¹, 黄正宏², 乔文明¹, 梁晓怿¹, 杨俊和³, 凌立成¹

(1. 华东理工大学化学工程国家重点实验室, 上海200237; 2. 清华大学材料科学与工程学院, 北京 100084; 3. 上海理工大学材料科学与工程学院, 上海 200093)

收稿日期:2010-10-17 修回日期:2010-12-01 出版日期:2011-08-20 网络出版日期:2011-07-14
作者简介:王灿(1983-), 男, 博士研究生.
基金资助:
国家自然科学基金(50730003, 50672025, 20806024, 51002051); 国家863重点项目(2008AA062302)

Metal-catalyst-free Growth and Characterization of Nitrogen-doped Carbon Nanotubes

WANG Can¹, ZHAN Liang¹, HUANG Zhen-Hong², QIAO Wen-Ming¹, LIANG Xiao-Yi¹, YANG Jun-He³, Ling Li-Cheng¹

(1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; 3. School of Material Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)

Received:2010-10-17 Revised:2010-12-01 Published:2011-08-20 Online:2011-07-14
Supported by:
National Natural Science Foundation of China (50730003, 50672025, 20806024, 51002051); 863 Program (2008AA062302)

摘要/Abstract

摘要： 采用爆炸辅助化学气相沉积法, 以碳纳米管(CNTs)作催化剂, 三聚氰胺作碳源和氮源, 无金属催化剂合成出氮掺杂碳纳米管(CN_x). 通过TEM、EDS、Mapping、XPS、Raman和TG测试手段对CN_x进行了表征. 结果表明, CNx具有竹节状结构, 其掺氮量高达17at%, 且氮元素分布均匀. 氮元素以石墨型和吡啶型掺杂在石墨层中, 由于大量氮元素掺杂造成纳米管石墨化程度降低, 抗氧化能力减弱.

关键词: 碳纳米管, 无金属催化剂, 氮掺杂

Abstract: Nitrogen-doped carbon (CN_x) nanotbues were synthesized by detonation-assisted chemical vapor deposition with carbon nanotubes (CNTs) as catalysts and melamine as carbon/nitrogen sources. CNTs exhibit high catalytic activity for the metal-catalyst-free synthesis of CNx nanotubes. TEM, EDS, Mapping, XPS, Raman and TG were performed to characterize the synthesized CNx nanotubes. CN_x nanotubes exhibit compartmentalized bamboo-like structure, and contain high concentration of nitrogen (ca. 17at%), which is homogeneously distributed within compartment layers and tube walls. The pyridine-like and graphitic N are incorporated into the graphitic network. The nitrogen doping induces the decrease of the graphitization degree and results in lower oxidation-resistance temperature. The synthesis of CNx nanotubes without metal catalysts will facilitate the applications of CN_x nanotubes.

Key words: carbon nanotubes, metal-catalyst-free, nitrogen-doped

中图分类号:

TQ383

王灿, 詹亮, 黄正宏, 乔文明, 梁晓怿, 杨俊和, 凌立成. 氮掺杂碳纳米管的无金属催化剂合成和表征[J]. 无机材料学报, 2011, 26(8): 881-884.

WANG Can, ZHAN Liang, HUANG Zhen-Hong, QIAO Wen-Ming, LIANG Xiao-Yi, YANG Jun-He, Ling Li-Cheng. Metal-catalyst-free Growth and Characterization of Nitrogen-doped Carbon Nanotubes[J]. Journal of Inorganic Materials, 2011, 26(8): 881-884.

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氮掺杂碳纳米管的无金属催化剂合成和表征

Metal-catalyst-free Growth and Characterization of Nitrogen-doped Carbon Nanotubes

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