In terms of applications, it is a widely used support materials for electrocatalytic applications like fuel cells........

# u can use MWCNt in polymer where higher mechanical properties desired

Interanal crosslinking of MWCNT using electron beam or else inhance mehanical properties of CNT and respective composite

MWCNT gives more chemical resistance than SWCNT

SWCNT are single surface carbon nanotubes and for exploiting especially the electronic properties which vary with their chirality, you have to use only SWCNT.

MWCNT are multi-surface materials and would lose special electronic properties. They will show an average effect of all chiral tubes. Therefore use of these in mechanical and thermodynamical properties will be ok.

MWCNT are cheaper to produce, much cheaper compared to SWCNT. Therefore, they can be profitably used to make polymer or other composites enhancing their mechanical, thermal and electrical properties.

there are three types of SWCNT (armchair, zegzag, and chiral), they have different  electronic properties, some times we can use SEM images to identify the type of CNT, the smaller diameter and  highly warped bundle tubes belonged to SWCNT while MWCNT show  less curved larger diameter tubes .

In drug delivery, SWCNTs are known to be more efficient than MWCNTs. This is due to the reason that SWCNTs have ultra-high surface area and efficient drug-loading capacity. It has been found that a SWCNT anticancer drug complex has a much longer blood circulation time than the anticancer drug on its own. This leads to more prolonged and sustained uptake of the drug by tumor cells via the enhanced permeability and retention effect. The sp2 hybridization in MWCNTs, a delocalized electron cloud along the wall is generated which is responsible for the interactions between adjacent cylindrical layers in MWCNTs resulting in a less flexible and more structural defects. Decoration of multiwall carbon nanotubes (MWCNTs) consists of depositing nanoparticles on the MWCNT walls or ends, bonded by physical interaction with potential applications in catalysis, biosensors, biomedical, magnetic datastorage, and electronic devices.

In addition, SWCNTs may be a metal or semiconductor depending on their diameter and helical arrangements. Due to their one-dimensional nature, the charge carriers can be transported through the nanotubes without scattering. The open end of the MWCNTs has a fast electron transfer rate similar to graphite electrodes, while the SWCNTs have a much slower electron transfer rate.

CNTs are divided into single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) based on the number of graphene sheets. SWCNTs have a diameter range of 0.5 to 12 nm but the smallest diameter of SWCNTs is 0.4 nm with different tube lengths starting from few micrometers depending on manufacturing and treatment techniques. MWCNTs consist of multi rolled layers of graphene inserted one into the other and the number of graphene walls may reach more than 25 walls with spacing of 0.34 nm. The outside diameter of MWCNTs ranges from 1 nm to 50 nm while the inside diameter is several nanometers. As a material modification, MWCNTs is better than SWCNTs as it is stiffer, easier, and cheaper to produce on a large scale.

hi all of you , can you tell me how much the electrical conductivity of Graphene , SWCNT and MWCNT, please?

Mohammed M. Fayyadh the Eg of graphene is zero so it is metallic while for CNT it can be metallic or semiconducting depending on the type of synthesis the purity of CNT differs depending on the type of the catalysts used, and graphene are transparent and both of them are highly thermally and electrically conducting

Huda Mahmood Al-attar Can you please tell me some conductive graphene and CNTs.

I need 100-200 grams. Near Pakistan, China?

Hi Dear researchers

Do you know any company that sells pure SWCNT? Do you know how much is its price per gram?

Hello. OCSiAl company is industrial scale manufacturer for SWCNT with brend TUBALL.

SWCNTs have a schotky barrier which can be modulated for ultrasensitive biomolecule detection. Such a barrier is absent MWCNTs. Furthermore, SWCNTs are more expensive and are often less pure than their multi-walled coutnerparts