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(Fe,Co)/N-Doped Multi-Walled Carbon Nanotubes as …

Herein, electrocatalytically active, hybrid materials composed of Fe−Co alloy nanoparticles-embedded N-doped carbon nanotubes (CNTs) are synthesized from Fe/Co-polyporphyrin-CNTs via pyrolysis. The materials serve as highly effective bifunctional oxygen electrode catalysts for zinc-air batteries.

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Carbon Nanotubes, Multi-walled, Nitrogen-doped …

Typical SEM Image of ACS Material Carbon Nanotubes, Multi-walled, Nitrogen-doped 3. Application Fields. 1) Catalysts. 2) Lithium-battery anodes. 3) Nanotube composites (by filling or coating) 4) Supercapacitor. 5) Drug delivery

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Carbon Nanotubes, Multi-walled, Nitrogen-doped …

Typical SEM Image of ACS Material Carbon Nanotubes, Multi-walled, Nitrogen-doped 3. Application Fields. 1) Catalysts. 2) Lithium-battery anodes. 3) Nanotube composites (by filling or coating) 4) Supercapacitor. 5) Drug delivery

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Synthesis of Nitrogen-Doped Carbon Nanotubes …

Nitrogen-doped carbon nanotubes were synthesized using a mixture of FcH and ACN in an inverted-vertical CVD reactor. The primary aim of this study was optimization of the synthesis parameters to prepare N-CNTs with high nitrogen content. Specifically, the effects of the synthesis conditions including hydrogen flow rate, growth temperature, and ...

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Nitrogen-Doped Carbon Nanotube Arrays with High ...

The large-scale practical application of fuel cells will be difficult to realize if the expensive platinum-based electrocatalysts for oxygen reduction reactions (ORRs) cannot be replaced by other efficient, low-cost, and stable electrodes. Here, we report that vertically aligned nitrogen-containing carbon nanotubes (VA-NCNTs) can act as a metal-free electrode with a much better ...

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High H2 Uptake by Alkali-Doped Carbon Nanotubes …

Lithium- or potassium-doped carbon nanotubes can absorb ∼20 or ∼14 weight percent of hydrogen at moderate (200° to 400°C) or room temperatures, respectively, under ambient pressure. These values are greater than those of metal hydride and cryoadsorption systems. The hydrogen stored in the lithium- or potassium-doped carbon nanotubes can be released at higher temperatures, and the ...

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Synthesis and Characterization of Nitrogen-doped …

Here, nitrogen-doped carbon nanotubes (CNT-N) were synthesized using exfoliated graphitic carbon nitride functionalized with nickel oxides (ex-g-C3N4-NixOy). CNT-N were produced at 900 °C in two steps: (1) ex-g-C3N4-NixOy reduction with hydrogen and (2) ethylene assisted chemical vapor deposition (CVD). The detailed characterization of the produced materials was performed via atomic force ...

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Cobalt-doped carbon nanotubes: Preparation, texture, …

These nanotubes are fiberlike structures consisting of concentric graphite sheets nested along the axis extending as long as several micrometers, and diameters of these nanotubes are limited to less than 100 nm. In this paper we report preparation, structural and magnetic properties of cobalt-doped carbon nanotubes.

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Doped Carbon Nanotube Properties | IntechOpen

2010-3-1 · The last twelve years have seen enormous growth in many aspects of doped carbon nanotubes. The idea of doping carbon nanotubes has come from microelectronics and now develops both in a traditional donor-acceptor direction (Miyamoto et al., 1995; Lee et al., 1997; Rao et al., 1997; Grigorian et al., 1998; Esfarjani et al., 1999) and in a number of new aspects of application.

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Doped Carbon Nanotube Properties | IntechOpen

2010-3-1 · The last twelve years have seen enormous growth in many aspects of doped carbon nanotubes. The idea of doping carbon nanotubes has come from microelectronics and now develops both in a traditional donor-acceptor direction (Miyamoto et al., 1995; Lee et al., 1997; Rao et al., 1997; Grigorian et al., 1998; Esfarjani et al., 1999) and in a number of new aspects of application.

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Boron-doped few-walled carbon nanotubes: novel …

2016-9-26 · The carbon nanotube (CNT) is an intensely studied nanostructure since its discovery in the 1990s by Iijima [].Due to a similar intrinsic lattice structure to graphene, carbon nanotubes share many of the beneficial electrical, mechanical, and optical properties of graphene; however, their one-dimensionality enable their use in electrodes as conductive channels that form a percolation network.

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Carbon Nanotubes Doped with 52 wt% Graphene …

Carbon Nanotubes Doped with 52 wt% Graphene Nanopowder/Nanoparticles € 56.00 Quantity

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Phosphorus and phosphorus-nitrogen doped carbon …

A first-principles approach is used to establish that substitutional phosphorus atoms within carbon nanotubes strongly modify the chemical properties of the surface, thus creating highly localized sites with specific affinity towards acceptor molecules. Phosphorus-nitrogen co-dopants within the tube …