Outer-specific surface area as a gauge for absolute purity of single-walled carbon nanotube forests
✍ Scribed by Don N. Futaba; Jundai Goto; Takeo Yamada; Satoshi Yasuda; Motoo Yumura; Kenji Hata
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 563 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
We present a simple approach to estimate the absolute purity of carbon nanotube (CNT) forests based on outer-specific surface area (SSA). The outer-SSA and absolute purity for diverse forms of CNT forests to increased levels of carbonaceous impurities showed similar behavior and revealed a method to distinguish between CNTs and carbonaceous impurities. Furthermore, these experiments showed a direct proportionality between the outer-SSA and absolute purity which led to a simple analytical model to use outer-SSA as a gauge for absolute purity analysis.