Commercial carbon nanotubes as heterogeneous catalysts in energy related applications

2009 ◽  
Vol 246 (11-12) ◽  
pp. 2502-2506 ◽  
Author(s):  
J. Zhang ◽  
D.S. Su ◽  
R. Schlögl
Keyword(s):  
Carbon Nanotubes ◽  
Heterogeneous Catalysts ◽  
Commercial Carbon

scholarly journals Non-purified commercial multiwalled carbon nanotubes supported on electrospun polyacrylonitrile@polypyrrole nanofibers as photocatalysts for water decontamination

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 9911-9920
Author(s):  
Gabriele Capilli ◽  
Damian Rodríguez Sartori ◽  
Monica C. Gonzalez ◽  
Enzo Laurenti ◽  
Claudio Minero ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Advanced Oxidation Processes ◽  
Supported Catalyst ◽  
Advanced Oxidation ◽  
Multiwalled Carbon ◽  
Water Decontamination ◽  
Oxidation Processes ◽  
Commercial Carbon ◽  
Metallic Impurities

Under UV-Vis irradiation, the metallic impurities embedded in non-purified commercial carbon nanotubes generate radicals suitable for advanced oxidation processes. Semiconducting PPY membranes enhance the photo activity of a supported catalyst.

scholarly journals Environmentally Induced Changes of Commercial Carbon Nanotubes in Aqueous Suspensions. Adaptive Behavior of Bacteria in Biofilms

ACS Omega ◽  
2021 ◽  
Vol 6 (8) ◽  
pp. 5197-5208
Author(s):  
Damián Rodríguez Sartori ◽  
Marcos Bertuola ◽  
Alejandro Miñán ◽  
Eduardo Gonik ◽  
Mónica C. Gonzalez ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Adaptive Behavior ◽  
Aqueous Suspensions ◽  
Commercial Carbon ◽  
Induced Changes

Nitrogen-Doped Carbon Nanotubes as an Effective Support of Heterogeneous Catalysts for Selective Alkene Oxidation

2021 ◽  
Vol 62 (2) ◽  
pp. 288-298
Author(s):  
A. N. Suboch ◽  
V. Yu. Evtushok ◽  
L. S. Kibis ◽  
O. A. Kholdeeva ◽  
O. Yu. Podyacheva
Keyword(s):  
Carbon Nanotubes ◽  
Heterogeneous Catalysts ◽  
Alkene Oxidation ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals Pyrolyzing Renewable Sugar and Taurine on the Surface of Multi-Walled Carbon Nanotubes as Heterogeneous Catalysts for Hydroxymethylfurfural Production

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 517 ◽  
Author(s):  
Huiping Ji ◽  
Jie Fu ◽  
Tianfu Wang
Keyword(s):  
Carbon Nanotubes ◽  
Heterogeneous Catalysts ◽  
Metal Salt ◽  
Textural Properties ◽  
Solvent System ◽  
Hydrothermal Stability ◽  
Transportation Fuels ◽  
Water Solvent ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Conversion of biorenewable feedstocks into transportation fuels or chemicals likely necessitates the development of novel heterogeneous catalysts with good hydrothermal stability, due to the nature of highly oxygenated biomass compounds and the prevalence of water as a processing solvent. The use of carbon-based materials, derived from sugars as catalyst precursors, can achieve hydrothermal stability while simultaneously realizing the goal of sustainability. In this work, the simultaneous pyrolysis of glucose and taurine in the presence of multi-walled carbon nanotubes (MWCNTs), to obtain versatile solid acids, has been demonstrated. Structural and textural properties of the catalysts have been characterized by TEM, TGA, and XPS. Additionally, solid state nuclear magnetic resonance (ssNMR) spectroscopy has been exploited to elucidate the chemical nature of carbon species deposited on the surface of MWCNTs. Al(OTf)3, a model Lewis acidic metal salt, has been successfully supported on sulfonic groups tethered to MWCNTs. This catalyst has been tested for C6 sugar dehydration for the production of HMF in a tetrahydrofuran (THF)/water solvent system with good recyclability.

Study of efficiency of different commercial carbon nanotubes on manufacturing of epoxy matrix composites

2013 ◽  
Vol 48 (25) ◽  
pp. 3169-3177 ◽  
Author(s):  
SG Prolongo ◽  
BG Melitón ◽  
A Jiménez-Suárez ◽  
A Ureña
Keyword(s):  
Carbon Nanotubes ◽  
Epoxy Matrix ◽  
Matrix Composites ◽  
Commercial Carbon

Scan Rates and the Disparities in the Electrochemical Double Layer Capacitor (EDLC) Performance

2020 ◽  
Vol 307 ◽  
pp. 125-130
Author(s):  
Lawal Sa'adu ◽  
Mohd Azman Hashim@Ismail
Keyword(s):  
Carbon Nanotubes ◽  
Cyclic Voltammetry ◽  
Double Layer ◽  
Vinylidene Fluoride ◽  
High Specific Capacitance ◽  
Double Layer Capacitor ◽  
Electrochemical Double Layer Capacitor ◽  
Commercial Carbon ◽  
Poly Vinylidene Fluoride ◽  
Electrochemical Double Layer

Three electrochemical double layer capacitor (EDLC) cells (Cell X, Y and Z) made from an electrode of 90 wt. % of the multiwalled commercial carbon nanotubes, 10 wt. % of poly (vinylidene fluoride-co-hexafluoropropylene) and three different samples of electrolytes polymer electrolyte made up of a compositions of 50:50, 60:40 and 70:30 wt.% of H3PO4/PVA (in ratio) soaked in a filter paper was characterized in this study. The aim is to ascertain the disparities in performances of the cells in relation to their respective scan rates. Cyclic voltammetry (CV) measurement of cells shows a high specific capacitance of 313 Fg−1 for the scan rates 10 mV was recorded from the cell with the highest composition H3PO4/PVA ratio (i.e. 70:30 wt.%). However, when the CV of the cell was measured with different scan rates, disparities in the performance occurred, as only 94 and 174 Fg−1 was recorded at the scan rates 100 and 50 mV respectively for cell-X. The result was not different when the two other cells (60:40 and 70:30 wt. % of H3PO4/PVA) were measured at the same scan rates.

The effect of Cu loading on Ni/carbon nanotubes catalysts for hydrodeoxygenation of guaiacol

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26658-26667 ◽  
Author(s):  
A. B. Dongil ◽  
B. Bachiller-Baeza ◽  
I. Rodríguez-Ramos ◽  
J. L. G. Fierro ◽  
N. Escalona
Keyword(s):  
Carbon Nanotubes ◽  
Commercial Carbon

Commercial carbon nanotubes (CNT), were used as supports to prepare Ni/CNT catalysts with a 15 wt% Ni loading and NiCux/CNT catalysts with Cu loadings of x: 1.5, 2.25, 3.0 and 3.75 wt% were prepared.

Outstanding electromagnetic interference shielding of silver nanowires: comparison with carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56590-56598 ◽  
Author(s):  
Mohammad Arjmand ◽  
Aref Abbasi Moud ◽  
Yan Li ◽  
Uttandaraman Sundararaj
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Electromagnetic Interference ◽  
Silver Nanowires ◽  
Silver Nanowire ◽  
Electromagnetic Interference Shielding ◽  
Commercial Carbon

Synthesized silver nanowire/polystyrene nanocomposites showed superior electrical properties to commercial carbon nanotube/polystyrene nanocomposites at high filler loadings. This was ascribed to the higher metallic nature of silver nanowires.

scholarly journals Combinatorial Optimization of Heterogeneous Catalysts Used in the Growth of Carbon Nanotubes

Langmuir ◽  
2001 ◽  
Vol 17 (2) ◽  
pp. 260-264 ◽  
Author(s):  
Alan M. Cassell ◽  
Sunita Verma ◽  
Lance Delzeit ◽  
M. Meyyappan ◽  
Jie Han
Keyword(s):  
Carbon Nanotubes ◽  
Combinatorial Optimization ◽  
Heterogeneous Catalysts
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