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Catalytic chemical vapor deposition synthesis of double-walled and few-walled carbon nanotubes by using a MoO3-supported conditioning catalyst to control the formation of iron catalytic particles within an α-Al1.8Fe0.2O3 self-supported foam

(2010) JOURNAL OF PHYSICAL CHEMISTRY C. 114(45). p.19188-19193
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Abstract
alpha-Al1.8Fe0.2O3 and alpha-Al1.8Fe0.2O3-MoO3 self-supported foams are used as catalytic materials for the synthesis of carbon nanotubes by catalytic chemical vapor deposition. A MoO3-supported conditioning catalyst placed upstream in the reactor is more efficient than MoO3 present within the catalytic material in producing double-walled and few-walled carbon nanotubes with fewer defects. It is shown that the corresponding modifications of the gas atmosphere (presence of H2O formed by the H-2 reduction of MoO3 and, therefore, lower H-2 and CH4 concentrations) allow one to limit more efficiently the release of the Fe catalyst from the oxide solid solution foam, which results in the formation of fewer Fe nanoparticles, which, therefore, are less prone to undesirable growth. Thus, a MoO3-induced "solid-state" effect is demonstrated within the catalytic material without molybdenum species being themselves present within this material. This could lead to simplifications in the design of catalytic materials.
Keywords
MO, NANOPARTICLES, CERAMIC FOAM, HIGH-PURITY, SINGLE, DECOMPOSITION, CVD SYNTHESIS, CCVD SYNTHESIS, GROWTH, IN-SITU

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Chicago
Cordier, Anne, Valdirene Gonzaga De Resende, Alicia Weibel, Eddy De Grave, Alain Peigney, and Christophe Laurent. 2010. “Catalytic Chemical Vapor Deposition Synthesis of Double-walled and Few-walled Carbon Nanotubes by Using a MoO3-supported Conditioning Catalyst to Control the Formation of Iron Catalytic Particles Within an α-Al1.8Fe0.2O3 Self-supported Foam.” Journal of Physical Chemistry C 114 (45): 19188–19193.
APA
Cordier, A., Gonzaga De Resende, V., Weibel, A., De Grave, E., Peigney, A., & Laurent, C. (2010). Catalytic chemical vapor deposition synthesis of double-walled and few-walled carbon nanotubes by using a MoO3-supported conditioning catalyst to control the formation of iron catalytic particles within an α-Al1.8Fe0.2O3 self-supported foam. JOURNAL OF PHYSICAL CHEMISTRY C, 114(45), 19188–19193.
Vancouver
1.
Cordier A, Gonzaga De Resende V, Weibel A, De Grave E, Peigney A, Laurent C. Catalytic chemical vapor deposition synthesis of double-walled and few-walled carbon nanotubes by using a MoO3-supported conditioning catalyst to control the formation of iron catalytic particles within an α-Al1.8Fe0.2O3 self-supported foam. JOURNAL OF PHYSICAL CHEMISTRY C. 2010;114(45):19188–93.
MLA
Cordier, Anne, Valdirene Gonzaga De Resende, Alicia Weibel, et al. “Catalytic Chemical Vapor Deposition Synthesis of Double-walled and Few-walled Carbon Nanotubes by Using a MoO3-supported Conditioning Catalyst to Control the Formation of Iron Catalytic Particles Within an α-Al1.8Fe0.2O3 Self-supported Foam.” JOURNAL OF PHYSICAL CHEMISTRY C 114.45 (2010): 19188–19193. Print.
@article{1094316,
  abstract     = {alpha-Al1.8Fe0.2O3 and alpha-Al1.8Fe0.2O3-MoO3 self-supported foams are used as catalytic materials for the synthesis of carbon nanotubes by catalytic chemical vapor deposition. A MoO3-supported conditioning catalyst placed upstream in the reactor is more efficient than MoO3 present within the catalytic material in producing double-walled and few-walled carbon nanotubes with fewer defects. It is shown that the corresponding modifications of the gas atmosphere (presence of H2O formed by the H-2 reduction of MoO3 and, therefore, lower H-2 and CH4 concentrations) allow one to limit more efficiently the release of the Fe catalyst from the oxide solid solution foam, which results in the formation of fewer Fe nanoparticles, which, therefore, are less prone to undesirable growth. Thus, a MoO3-induced {\textacutedbl}solid-state{\textacutedbl} effect is demonstrated within the catalytic material without molybdenum species being themselves present within this material. This could lead to simplifications in the design of catalytic materials.},
  author       = {Cordier, Anne and Gonzaga De Resende, Valdirene and Weibel, Alicia and De Grave, Eddy and Peigney, Alain and Laurent, Christophe},
  issn         = {1932-7447},
  journal      = {JOURNAL OF PHYSICAL CHEMISTRY C},
  keyword      = {MO,NANOPARTICLES,CERAMIC FOAM,HIGH-PURITY,SINGLE,DECOMPOSITION,CVD SYNTHESIS,CCVD SYNTHESIS,GROWTH,IN-SITU},
  language     = {eng},
  number       = {45},
  pages        = {19188--19193},
  title        = {Catalytic chemical vapor deposition synthesis of double-walled and few-walled carbon nanotubes by using a MoO3-supported conditioning catalyst to control the formation of iron catalytic particles within an \ensuremath{\alpha}-Al1.8Fe0.2O3 self-supported foam},
  url          = {http://dx.doi.org/10.1021/jp105712q},
  volume       = {114},
  year         = {2010},
}

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