化学气相沉积法合成高强度纳米炭纤维/蜂窝堇青石复合材料

王艳莉; 王绪建; 詹　亮; 乔文明; 梁晓怿; 凌立成

doi:DOI: 10.1016/S1872-5805(12)60

化学气相沉积法合成高强度纳米炭纤维/蜂窝堇青石复合材料

doi: 　DOI: 10.1016/S1872-5805(12)60

华东理工大学|化学工程国家重点实验室|上海 200237

基金项目: 国家自然科学基金（20806024,51002051,50730003, 50672025, 20977028），中央高校基本科研业务费专项资金（WA1014016）,高等学校博士学科点专项科研基金（20090074110009）和国家863重点项目（2008AA062302）.

详细信息

作者简介:
王艳莉（1975-）|女|陕西西乡人|博士|副教授|主要从事纳米材料的应用基础研究.

通讯作者:
詹　亮. Tel: +86-21-64252924, Fax: +86-21-64252914

中图分类号: TB 332
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出版历程
- 收稿日期: 2011-09-30
- 录用日期: 2012-07-24
- 修回日期: 2012-02-20
- 刊出日期: 2012-04-20

A high strength carbon nanofiber/honeycomb cordierite composite produced by chemical vapor deposition

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Funds: National Natural Science Foundation of China (20806024, 51002051, 50730003, 50672025 and 20977028), Fundamental Research Funds for the Central Universities (WA1014016), Research Fund for the Doctoral Program of Higher Education of China（20090074110009） and Research Fund of China 863 Program (2008AA062302) .

More Information

Author Bio:
WANG Yan-li (1975-), female, Ph. D., Associate Professor. engaged in the nano-carbon materials.

Corresponding author: ZHAN Liang. Tel: +86-21-64252924,Fax: +86-21-64252914

摘要

摘要: 以C₂H₄为碳源、Ni-Cu合金作催化剂，采用化学气相沉积法在蜂窝状堇青石表面生长纳米炭纤维(CNFs)，获得压缩强度为50.0MPa的纳米炭纤维/蜂窝堇青石复合材料。在堇青石表面蜂窝腔内生长的CNFs直径为20nm～30nm，CNFs之间相互交织形成5μm厚的纤维层，CNFs的质量分数为25.3%。金属Cu的掺杂对Ni-Cu合金的颗粒尺寸产生重要影响，进而影响CNFs的生长速率、纤维层厚度及其微结构。所合成CNFs的石墨化程度不高，在蜂窝堇青石中生长纳米炭纤维可以把其压缩强度从10MPa增加到50MPa。
- 纳米炭纤维 /
- 蜂窝状堇青石 /
- 微结构 /
- 缺陷
Abstract: A carbon nanofiber (CNF)/honeycomb cordierite composite with a compressive strength of 50MPa was prepared by chemical vapor deposition, using C₂H₄ as the carbon source and Ni-Cu alloy as the catalyst. The CNFs with a diameter of 20-30nm in the cells of the honeycomb interweave with each other to form a 5μm- thick layer. The CNF content is 25.3wt%. The Cu has remarkable effects on the particle size of the Ni-Cu alloy, which further affects the growth rate, loading level and nanostructures of the CNFs. The CNFs are not well graphitized and the insertion of the CNFs into the honeycomb can increase its compressive strength from 10 to 50MPa.
- Carbon nanofibers /
- Ceramic monolith /
- Microstructure /
- Defects