scholarly journals Carbon Nanofibers as Macro-Structured Catalytic Support

Nanofibers ◽  
10.5772/8145 ◽  
2010 ◽  
Author(s):  
Ricardo Vieira
Keyword(s):  
Carbon Nanofibers ◽  
Catalytic Support

scholarly journals Carbon nanofibers: a versatile catalytic support

2008 ◽  
Vol 11 (3) ◽  
pp. 353-357 ◽  
Author(s):  
Nelize Maria de Almeida Coelho ◽  
Jomar Livramento Barros Furtado ◽  
Cuong Pham-Huu ◽  
Ricardo Vieira
Keyword(s):  
Carbon Nanofibers ◽  
Catalytic Support

Acid treated carbon nanofibers as catalytic support for heavy oil hydroprocessing

2015 ◽  
Vol 249 ◽  
pp. 79-85 ◽  
Author(s):  
H. Purón ◽  
J.L. Pinilla ◽  
I. Suelves ◽  
M. Millan
Keyword(s):  
Carbon Nanofibers ◽  
Heavy Oil ◽  
Catalytic Support ◽  
Treated Carbon

Growth of Carbon Nanotubes and Carbon Nanofibers in Opposed Flow Oxy-Flame of Methane

2003 ◽  
Author(s):  
W. Merchan-Merchan ◽  
A. V. Saveliev ◽  
L. A. Kennedy
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanofibers ◽  
Carbon Nanomaterials ◽  
Rectangular Cross Section ◽  
Formation Rate ◽  
Field Method ◽  
Great Promise ◽  
Multiwalled Carbon ◽  
Catalytic Support ◽  
Opposed Flow

Carbon nanotubes and carbon nanofibers formed on a Ni-based catalytic support positioned at the fuel side of opposed flow oxy-flame are characterized by electron microscopy. Observed nanoforms include multiwalled carbon nanotubes (MWNTs), MWNT bundles, helically coiled tubular nanofibers, and ribbon-like coiled nanofibers with rectangular cross-section. The electric field method is applied to control structure and purity of formed carbon nanomaterial. A coating layer of nanotubes possessing a thickness of 35 to 40 microns and a high degree of alignment was formed along the surface of the catalytic probe with variation of probe potential. The method shows a great promise in controlling the structure and formation rate of flame generated carbon nanomaterials.

Preparation and Application of Carbon Nanofibers-supported Palladium Nanoparticles Catalysts Based on Electrospinning

2014 ◽  
Vol 29 (8) ◽  
pp. 814 ◽  
Author(s):  
GUO Li-Ping ◽  
BAI Jie ◽  
LIANG Hai-Ou ◽  
LI Chun-Ping ◽  
SUN Wei-Yan ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Palladium Nanoparticles ◽  
Supported Palladium

Cytocompatibility of Carbon Nanofiber Materials for Neural Applications

2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster
Keyword(s):  
Carbon Fiber ◽  
Surface Energy ◽  
Carbon Nanofibers ◽  
Carbon Fibers ◽  
Carbon Nanofiber ◽  
Fiber Composite ◽  
Scar Tissue ◽  
Pc 12 Cells ◽  
Low Surface Energy ◽  
Poly Carbonate

AbstractSince the cytocompatibility of carbon nanofibers with respect to neural applications remains largely uninvestigated, the objective of the present in vitro study was to determine cytocompatibility properties of formulations containing carbon nanofibers. Carbon fiber substrates were prepared from four different types of carbon fibers, two with nanoscale diameters (nanophase, or less than or equal to 100 nm) and two with conventional diameters (or greater than 200 nm). Within these two categories, both a high and a low surface energy fiber were investigated and tested. Astrocytes (glial scar tissue-forming cells) and pheochromocytoma cells (PC-12; neuronal-like cells) were seeded separately onto the substrates. Results provided the first evidence that astrocytes preferentially adhered on the carbon fiber that had the largest diameter and the lowest surface energy. PC-12 cells exhibited the most neurites on the carbon fiber with nanodimensions and low surface energy. These results may indicate that PC-12 cells prefer nanoscale carbon fibers while astrocytes prefer conventional scale fibers. A composite was formed from poly-carbonate urethane and the 60 nm carbon fiber. Composite substrates were thus formed using different weight percentages of this fiber in the polymer matrix. Increased astrocyte adherence and PC-12 neurite density corresponded to decreasing amounts of the carbon nanofibers in the poly-carbonate urethane matrices. Controlling carbon fiber diameter may be an approach for increasing implant contact with neurons and decreasing scar tissue formation.

Cytocompatibility and Material Properties of Poly-carbonate Urethane/Carbon Nanofiber Composites for Neural Applications

2003 ◽  
Vol 774 ◽  
Author(s):  
Janice L. McKenzie ◽  
Michael C. Waid ◽  
Riyi Shi ◽  
Thomas J. Webster
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanofibers ◽  
Material Properties ◽  
Carbon Nanofiber ◽  
Scar Tissue ◽  
Tissue Response ◽  
Positive Interactions ◽  
Weight Percentage ◽  
Poly Carbonate

AbstractCarbon nanofibers possess excellent conductivity properties, which may be beneficial in the design of more effective neural prostheses, however, limited evidence on their cytocompatibility properties exists. The objective of the present in vitro study was to determine cytocompatibility and material properties of formulations containing carbon nanofibers to predict the gliotic scar tissue response. Poly-carbonate urethane was combined with carbon nanofibers in varying weight percentages to provide a supportive matrix with beneficial bulk electrical and mechanical properties. The substrates were tested for mechanical properties and conductivity. Astrocytes (glial scar tissue-forming cells) were seeded onto the substrates for adhesion. Results provided the first evidence that astrocytes preferentially adhered to the composite material that contained the lowest weight percentage of carbon nanofibers. Positive interactions with neurons, and, at the same time, limited astrocyte functions leading to decreased gliotic scar tissue formation are essential for increased neuronal implant efficacy.

scholarly journals Electrospun lignin-based twisted carbon nanofibers for potential microelectrodes applications

Carbon ◽  
2019 ◽  
Vol 145 ◽  
pp. 556-564 ◽  
Author(s):  
Julien Roman ◽  
Wilfrid Neri ◽  
Alain Derré ◽  
Philippe Poulin
Keyword(s):  
Carbon Nanofibers
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