美国BNNT Materials, LLC 氮化硼纳米管 BNNT原料 BNNT SP10 Puffball 泡泡球形态
BNNT SP10 Puffball 泡泡球形态

| 硼同位素 | % BN content (nanotubes, nanosheets, nanocages) | Availability | |
| 天然硼 (~80% 11B, ~20% 10B) | 50% | Immediate | |
| 10B-enriched (>96% 10B) | 50% | Immediate | |
| 11B-enriched (>98% 11B) | 50% | Immediate |
| 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 |
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