NanoIntegris

ダブルクリックすると大きな画像を表示します。 もっと見る	HiPco ® Carbon Nanotubes 友達にメールする 価格: $299.00 在庫状況: 在庫あり Overview Product Residual Fe Catalyst Diameter Length Raw <35% wt% 0.8 – 1.2 ~100 – 1,000 nm Purified <15% wt% 0.8 – 1.2 ~100 – 1,000 nm Super Purified <5% wt% 0.8 – 1.2 ~100 – 1,000 nm Download: Technical Specifications Sheet
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Characterization Summary

Raman

TGA Profile

Particle Size Analysis ^ix

1. Diameter distribution measured by Unidym from TEM micrographs. Mean diameter ~1.0 nm.
2. Measured by Unidym using AFM.
3. Calculated. Lower limit assumes a SWNT with a diameter of 0.8nm and a length of 100nm. (0.8nm/0.245nm)(3.1414)(2 carbon atoms) = 20 carbons around the circumference. For every 0.283nm length there are 4x20=80 carbon atoms. (100nm/0.283nm)(80)(12.01) = 339,505 Amu. Assuming 2 significant digits = 3.4x105. Upper limit assumes a SWNT with a diameter of 1.2nm and a length of 1,000nm. (1.2nm/0.245nm)(3.1414)(2 carbon atoms) = 31 carbons around the circumference. For every 0.283nm length there are 4x31 = 124 carbon atoms. (1000nm/0.283nm)(124)(12.01) = 5,262,332 Amu. Assuming 2 significant digits = 5.2x106.
4. Calculated assuming single-wall nanotubes of diameter 1.0 nm arranged in crystalline "ropes" or "bundles" (inter-wall spacing 0.3 nm).
5. Value provided is for standard purified SWNTs. Raw and some super pure grades lots will have lower bulk densities. Other product forms may have higher bulk densities.
6. 800oC in air. The reported figures assume that the residue is present in the product as elemental Fe, and that it is fully converted to Fe2O3 during the TGA analysis. Hence, the TGA residual as measured is multiplied by MW Fe2/MW Fe2O3 (1/1.43) to express the result as Fe.
7. Calculated using geometric arguments assuming an isolated tube. SSA for tubes in "ropes" will be less
   than the stated value. A. Peigney et al., Carbon 39 (2001), 507-514.
8. In-house, Unidym buckypaper conductivity test (4 point probe).
9. The following particle size histogram is indicative of the typical tertiary particle size distribution found in bulk powder. It does not represent secondary particles (aggregates of individual tubes also known as ropes or bundles) nor does it represent primary particle sizes (individual carbon nanotubes).