Puffball
型号：BNNT SP10BNNT SP10 Puffball is the as-grown boron nitride nanotube material produced from our state-of-the-art laser synthesis rigs. The nanomaterial is a cotton-like, low tap density network of mainly two and three walled nanotubes ranging from a few to 100's of microns in length. BNNT SP10's grey color is due to nanoparticles of residual boron which are a byproduct of the HTP (high temperature/pressure) synthesis method.
详细描述
BNNT SP10 Puffball
| BNNT SP10 Puffball | Tech Data |
| BN content | >99% (refined materials) |
| Residual Impurities | Refined materials contain <1 wt.% elemental boron |
| Tap Density | Low, ~0.25 mg/cm3 |
| Defect density | Extremely low (BNNTs flex and recover when bent) |
| Band gap | 5.7 eV (direct measurement by low energy EELS) |
| Surface area | up to 400 m2/g (by multipoint BET) |
| Network | many isolated tubes, bundles up to 5 tubes (by TEM) |
| Number of walls | 1 to 5 walls are typical, 2 or 3 walls are most common (by TEM) |
| BNNT length | up to 200 μm (by SEM), longer suspected |