11/28/2023 0 Comments Functionalized carbon nanotubes![]() ![]() These results demonstrate that new MWCNT electrocatalytic systems are potential substitutes for platinum or other metal-based cathode materials in proton conducting membrane fuel cells. Rotating disk electrode and rotating ring disk electrode measurements revealed the mechanism to be a direct four-proton and four-electron redn. The electrodes are easily fabricated by a drop-casting vacuum drying procedure. CNTs are also excellent electron emitters due to their unique geometry and high aspect ratio, which induces a high field enhancement factor around their tips. These results demonstrate the advantages of systems of MWCNTs covalently linked to electrocatalytic mols. Carbon nanotubes (CNTs) are an interesting material that has many unique electrical, mechanical, thermal, and chemical properties. They have unique electronic properties which can change significantly with the chiral vector, C (n, m), the parameter that indicates how the graphene sheet is rolled to form a carbon nanotube. 755710) are seamless cylinders comprised of a layer of graphene. rates achieved are more than one order of magnitude higher than previously reported values for similar Co-porphyrin catalysts. Single-walled carbon nanotubes (SWNTs) (Product No. With low catalyst loading, the oxygen redn. in acidic media (pH = 0.0-5.0) at room temp. The study of functionalized carbon nanotubes is of very important significance in the dispersion of carbon nanotubes, the compatibility of composite. The MWCNT-Co-porphyrin compns., mixed with Nafion, displayed excellent catalytic performance for oxygen redn. by covalently grafting a Co(II) porphyrin to functionalized multiwalled carbon nanotubes (MWCNTs) via zwitterionic functionalization of the CNT sidewalls followed by a SN2 substitution reaction. Their versatile physicochemical features enable the covalent and noncovalent introduction of several pharmaceutically relevant entities and allow for rational design of novel candidate nanoscale constructs for drug development. Zhang, W, Shaikh, AU, Tsui, EY, Swager, TMĬobalt porphyrin functionalized carbon nanotube ca, fuel cell cobalt porphyrin functionalized carbon nĬarbon nanotube (CNT) compns. Carbon nanotubes (CNTs) have been proposed and actively explored as multipurpose innovative carriers for drug delivery and diagnostic applications. Cobalt Porphyrin Functionalized Carbon Nanotubes for Oxygen Reduction ![]()
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