Carbon nanofiber growth on thin rhodium layers

被引：7
作者：
Chinthaginjala, J. K.
Unnikrishnan, S.
Smithers, M. A. [1 ]
Kip, G. A. M. [1 ]
Lefferts, L. [1 ]
机构：
[1] Univ Twente, MESA, Inst Nanotechnol, Nanolab Mat Characterizat, NL-7500 AE Enschede, Netherlands
来源：
CARBON | 2012年 / 50卷 / 03期
关键词：
CATALYZED GROWTH; NI FOAM; RUTHENIUM; RHENIUM;
D O I：
10.1016/j.carbon.2011.10.021
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：
A thin layer of carbon nanofibers (CNFs) was synthesized on a thin polycrystalline rhodium (Rh) metal layer by decomposing ethylene in the presence of hydrogen. Interaction of Rh crystals with carbon results in fragmentation and formation of Rh-nanoparticles, facilitating CNF growth. CNFs are immobilized on the surface by an apparently amorphous intermediate layer containing both Rh and C. Maximum CNF growth was achieved at intermediate hydrogen concentrations. A CNF growth mechanism by (sub-) surface diffusion of carbon on Rh is suggested. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1434 / 1437
页数：4
相关论文
共 10 条
[1]   SOLUBILITY OF CARBON IN RHODIUM RUTHENIUM, IRIDIUM AND RHENIUM [J].
ARNOULT, WJ ;
MCLELLAN, RB .
SCRIPTA METALLURGICA, 1972, 6 (10) :1013-&
[2]   Influence of hydrogen on the formation of a thin layer of carbon nanofibers on Ni foam [J].
Chinthaginjala, J. K. ;
Lefferts, L. .
CARBON, 2009, 47 (14) :3175-3183
[3]   Carbon nanofibers: Catalytic synthesis and applications [J].
De Jong, KP ;
Geus, JW .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (04) :481-510
[4]   Au-Pd catalyzed growth of carbon nanofibers mat [J].
Hashishin, Takeshi ;
Tamaki, Jun .
MATERIALS CHEMISTRY AND PHYSICS, 2008, 111 (01) :54-58
[5]   Immobilization of a layer of carbon nanofibres (CNFs) on Ni foam: A new structured catalyst support [J].
Jarrah, NA ;
Li, FH ;
van Ommen, JG ;
Lefferts, L .
JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (19) :1946-1953
[6]   THE INTERACTION OF HYDROCARBONS WITH COPPER NICKEL AND NICKEL IN THE FORMATION OF CARBON FILAMENTS [J].
KIM, MS ;
RODRIGUEZ, NM ;
BAKER, RTK .
JOURNAL OF CATALYSIS, 1991, 131 (01) :60-73
[7]   The ruthenium catalysed synthesis of carbon nanostructures [J].
Mabudafhasi, ML ;
Bodkin, R ;
Nicolaides, CP ;
Liu, XY ;
Witcomb, MJ ;
Coville, NJ .
CARBON, 2002, 40 (14) :2737-2742
[8]   Rhenium-catalyzed growth carbon nanotubes [J].
Ritschel, Manfred ;
Leonhardt, Albrecht ;
Elefant, Dieter ;
Oswald, Steffen ;
Buechner, Bernd .
JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (24) :8414-8417
[9]   GRAPHITE FORMATION FROM LOW TEMPERATURE PYROLYSIS OF METHANE OVER SOME TRANSITION METAL SURFACES [J].
ROBERTSON, SD .
NATURE, 1969, 221 (5185) :1044-+
[10]   Ruthenium catalyst on carbon nanofiber support layers for use in silicon-based structured microreactors, Part I: Preparation and characterization [J].
Thakur, D. B. ;
Tiggelaar, R. M. ;
Hoang, T. M. C. ;
Gardeniers, J. G. E. ;
Lefferts, L. ;
Seshan, K. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 102 (1-2) :232-242
1