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N doped MWCNTs for catalyst support material

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N doped MWCNTs for catalyst support material

Nitrogen-doped multi-walled carbon nanotubes can activate the surface of CNTs, used as the supporting material of noble metal catalysts.

product origin:
china
item no.:
C958
shipping port:
Guangzhou, Beijing
color:
black
lead time:
in stock
payment:
T/T, Paypal, Western Union

pPoduct Details

Nitrogen doping can regulate the electronic structure and surface properties of carbon nanotubes. Nitrogen functional groups doped in the forms of -NO2, graphite nitrogen and -NH2 can improve the oxygen reduction catalytic activity, pseudo capacitance, wettability and electron donor properties of carbon nanotubes.

Product Name: nitrogen doped graphaitized multi walled carbon nanotubes(N doped MWCNTs).

Diameter: 8-20nm, 10-30nm, 40-60nm, 60-100nm

Length: 1-2um, 5-20um

N content%: 3.46wt%

Purity:99%

CAS: 308068-56-6

Color: black

N doped MWCNTs

Application of N doped MWCNTs as catalyst supporting materials
Nitrogen-doped multi-walled carbon nanotubes can activate the surface of CNTs, and nitrogen atoms with strong electron affinity can be used as additional nucleation sites. Therefore, n-cnts can be used as the supporting material of noble metal catalysts.

Application of N doped MWCNTs in ORR
Nitrogen has more valence electrons than carbon. After entering the lattice of carbon nanotubes, on the one hand, the electron fluidity on the surface of carbon nanotubes is enhanced, on the other hand, the positive charge density of surrounding C atoms is increased, which can realize oxygen adsorption and dissociation at a lower potential, thus possessing ORR catalytic activity. Moreover, n-cnts had good stability and methanol resistance, even comparable to Pt. In addition, ORR reaction is the discharge process of lithium air battery, and n-cnts have high conductivity and can form a network structure, which can be used as the anode material of lithium air battery.

Application of N-MWCNTs in supercapacitors
Doping of nitrogen atom can decrease energy level bandwidth and enhance electron mobility. N functional groups, as electron donors, have alkaline properties. In addition, nitrogen-containing functional groups could improve the wettability of the material, so n-cnts had better supercapacitor performance.

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