Carbon Nanofibers-OD. 190-590 nm

Catalog	ACMA00030793
Description	Purity: > 96%, Outside Diameter: 190-590 nm
Purity	> 96%
Application	Carbon NanoFibers have a variety of potential applications in different fields. These applications include medicine, mechanics,electric-electronics, chemicals, energy and others. It can be applied in drug delivery, biosensors, CNT composites, catalysis,nanoprobes, hydrogen storage, lithium batteries, gas-discharge tubes, flat panel displays, supercapacitors, transistors, solar cells, photoluminescence, templates.
Fiber Diameter	Outside Diameter: 190-590 nm

Case Study

Functionalization Control Strategies for Carbon Nanofiber-Based Nanomaterials

Zhou X, et al. Chemical Engineering Journal, 2020, 402, 126189.

In order to improve the physical, chemical, mechanical and optical properties of carbon nanofibers (CNFs), many studies have introduced more functional building blocks to merge with CNFs to form CNF-based composite nanomaterials, such as carbon nanotubes(CNTs), graphene, metal nanoparticles and quantum dots, etc.
· N-doped CNFs: N-doping has multiple effects on the functional improvement of the prepared N-CNFs materials, for example, the presence of N heteroatoms can improve the electrode/electrolyte wettability of electrode materials, increase the interlayer distance of the formed carbon materials, improve the conductivity and thermal stability of CNFs, and enhance the absorption, diffusion and transmission speed of ions on the surface of the materials.
· CNFs/CNTs composites: Generally, there are two potential strategies for producing CNFs/CNT hybrid nanomaterials. The first is to directly electrospin CNTs with polymers to form polymer/CNTs hybrid nanomaterials, and then use a carbonization process to transfer the polymer matrix into CNFs to form CNFs/CNTs hybrid materials. Another strategy to create CNFs/CNTs hybrids is to form ACNFs by electrospinning using metal catalysts, followed by CVD growth of CNTs on the CNF surface.
· CNFs decorated with nanoparticles: CNFs are considered to be the best carriers to combine with metal NPs to create functional materials and can be easily obtained by electrospinning, CVD, and covalent bonding. Doping of Cu and Zn NPs on CNFs grown on ACF substrates enables the potential application of CNFs in wound healing, antibiotic dressings, and tissue engineering.

Development and Application of Carbon Nanofiber-Based Catalyst Supports

Chinthaginjala J K, et al. Industrial & engineering chemistry research, 2007, 46(12), 3968-3978.

Particles and layers composed of carbon nanofibers are very promising catalyst supports because of their large pore volume and extremely open morphology on the one hand and their relatively high surface area on the other. CNF can be used as catalyst supports in three ways: (1) using small aggregates of entangled nanofibers loaded with the catalytically active phase. (2) using larger aggregates (millimeter-scale) of entangled CNF bodies to form a fixed bed. (3) CNF can be formed into layers on structured materials such as foams, monoliths or felts.
Application of CNF as catalyst support
· Incorporation of active catalytic phase: CNFs are treated with mild oxidation, which helps to generate oxygen-containing surface groups. These polar functional groups can be used to anchor small catalyst particles (e.g., metals such as Pt, Pd, etc.). In addition, the presence of polar functional groups enhances the wettability of CNFs to polar solvents (e.g., water).
· CNF aggregates as catalyst supports: Many studies have reported the application of CNF aggregates as catalyst supports in gas-phase reactions such as ethylene hydroformylation and various liquid-phase hydrogenation reactions. For example, the product distribution in the hydrogenation of cinnamaldehyde can be controlled by varying the surface chemistry of Ru-supported CNFs.
· CNF layers on structural materials: Typical structural materials include ceramic monoliths, felts, and metal (Ni) foams, among others.