Connecting carbon fibers by means of catalytically grown nanofilaments: Formation of carbon-carbon composites

被引：34

作者：

Cesano, F

Bertarione, S

Scarano, D

Zecchina, A

机构：

[1] Univ Turin, Dept Inorgan Phys & Mat Chem, NIS Ctr Excellence, I-10125 Turin, Italy

[2] Consorzio INSTM, UdR Torino, I-50132 Florence, Italy

来源：

CHEMISTRY OF MATERIALS | 2005年 / 17卷 / 20期

关键词：

D O I：

10.1021/cm050427a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The progressive formation of carbon/carbon (C/C) composites via a catalytic method by covering carbon fibers with a carbon matrix using C2H4/H-2 feedstock is investigated by SEM, TEM, and AFM microscopies and by XRD analysis. In the initial stages, intersecting nanofilaments of about 40-50 nm diameter are formed under relatively mild conditions at the surface of smooth carbon fibers with similar to 6-8 mu m diameter supporting Ni and Fe nanoparticles. A "porous nanotissue" which interconnects the original fibers is initially generated. At later stages a more compact CIC composite material is formed on a laboratory scale, which shows a high graphitization degree.

引用

收藏

页码：5119 / 5123

页数：5

相关论文

共 24 条

[1] Nanotubes from carbon [J].

Ajayan, PM .

CHEMICAL REVIEWS, 1999, 99 (07) :1787-1799

[2] PARTICLE SIZE DETERMINATION FROM X-RAY LINE BROADENING [J].

BIRKS, LS ;

FRIEDMAN, H .

JOURNAL OF APPLIED PHYSICS, 1946, 17 (08) :687-691

[3] Carbon-carbon composites prepared by a rapid densification process I: Synthesis and physico-chemical data [J].

Bruneton, E ;

Narcy, B ;

Oberlin, A .

CARBON, 1997, 35 (10-11) :1593-1598

[4]

Buckley J.D., 1998, Handbook of Composites

[5] Carbon nanofibers: Catalytic synthesis and applications [J].

De Jong, KP ;

Geus, JW .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (04) :481-510

[6] Chemical vapor infiltration of C/C composites:: Fast densification processes and matrix characterizations [J].

Delhaès, P ;

Trinquecoste, M ;

Lines, JF ;

Cosculluela, A ;

Goyhénèche, JM ;

Couzi, M .

CARBON, 2005, 43 (04) :681-691

[7] Chemical vapor deposition and infiltration processes of carbon materials [J].

Delhaes, P .

CARBON, 2002, 40 (05) :641-657

[8] GRAPHITE FORMATION BY DISSOLUTION-PRECIPITATION OF CARBON IN COBALT, NICKEL AND IRON [J].

DERBYSHIRE, FJ ;

PRESLAND, AEB ;

TRIMM, DL .

CARBON, 1975, 13 (02) :111-113

[9] Decomposition of methane over iron catalysts at the range of moderate temperatures: The influence of structure of the catalytic systems and the reaction conditions on the yield of carbon and morphology of carbon filaments [J].

Ermakova, MA ;

Ermakov, DY ;

Chuvilin, AL ;

Kuvshinov, GG .

JOURNAL OF CATALYSIS, 2001, 201 (02) :183-197

[10] Nickel formate route to the growth of carbon nanotubes [J].

Geng, J ;

Li, HW ;

Golovko, VB ;

Shephard, DS ;

Jefferson, DA ;

Johnson, BFG ;

Hofmann, S ;

Kleinsorge, B ;

Robertson, J ;

Ducati, C .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (48) :18446-18450