COOH Functionalized Carbon Nanotubes We start with our purified carbon nanotubes (produced by CVD methods) and perform a reflux in sulfuric / nitric acid to functionalize the surfaces of these nanotubes. This process results in a large concentration of carboxyl (-COOH) groups on the nanotube surface, and may also generate other groups (e.g. –OH) as well. After functionalization, these carboxylated nanotubes have 2-7 wt% COOH by titration. Images below are FTIR spectrum and Raman Spectrum Data of our COOH functionalized Multiwall nanotubes. Click on the images to view in PDF. More analytical data are coming.       Click on a cell in Size, Price column to order online or for more information Shipping charges are prepaid and added to an invoice. Applicable duties and taxes are paid separately upon customs clearance. MSDS for Multiwall & Doublewall Nanotubes     MSDS for SWNT Catalog No. Description Size, Price Catalog No. Description Size, Price COOH Functionalized Hollow Structure Multiwall Carbon Nanotubes, purity >95% by TGA PD15L1-5-COOH OD: 15 ± 5 nm, Length:1-5 μm 1g, $160 PD15L5-20-COOH OD:15 ± 5 nm Length:5-20 μm 1g, $130 5g, $750 5g, $600 PD30L1-5-COOH OD:30 ± 15 nm, Length:1-5 μm 1g, $160 PD30L5-20-COOH OD:30 ± 15 nm Length:5-20 μm 1g, $130 5g, $750 5g, $600 COOH Functionalized Bamboo Structure Multiwall Carbon Nanotubes, purity >95% by TGA BPD30L1-5-COOH OD: 30 ± 10 nm Length: 1-5 μm 1g, $170 BPD30L5-20-COOH OD: 30 ± 10 nm Length: 5-20 μm 1g, $140 5g, $800 5g, $650 COOH Functionalized Double Wall Carbon Nanotubes, purity >95% by TGA D4L1-5-COOH OD: 4 ± 1 nm Length: 1-5 μm 1g, $370 D4L5-20-COOH OD: 4 ± 1 nm Length: 5-20 μm 1g, $340 5g, $1800 5g, $1650 COOH Functionalized Single Wall Carbon Nanotubes, purity >95% by TGA D1.5L1-5-COOH OD: ~1.5 nm Length: 1-5 μm 1g, $220       5g, $1000       Related product: Amide Functionalized Carbon Nanotubes Multiwall Carbon Nanotubes Double Wall Carbon Nanotubes Single Wall Carbon Nanotubes The page was updated on 08/11/2009