The synthesis of multiwalled carbon nanotubes has been studied using a pulsed catalytic method. Acetylene was used as carbon generation reactant and silica or alumina supported iron as catalysts. Different metal loadings and various reaction temperatures were evaluated. The carbon growth over the ca
✦ LIBER ✦
Synthesis of a functionally gradient material based on C/C composites using an electro-deposition method
✍ Scribed by C. Kawai; S. Wakamatsu
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 615 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0261-8028
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## Abstract Full ^1^H and ^13^C NMR chemical shift assignments were made for two sets of penam β‐lactams: namely, the diastereomeric (2__S__, 5__S__, 6__S__)‐, (2__S__, 5__R__, 6__R__)‐, (2__S__, 5__S__, 6__R__)‐, and (2__S__, 5__R__, 6__S__)‐methyl 6‐(1,3‐dioxoisoindolin‐2‐yl)‐3,3‐dimethyl‐7‐oxo‐4