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The stability, geometric structure and electronic properties of a novel body-centered tetragonal carbon allotrope Bct C8 are systematically investigated. Bct C8 are formed by sp3-bonded carbon atoms and can be regarded as a compressed bundle of carbon nanotubes (CNT). The transition path from CNT to Bct C8 has been simulated, indicating a possible approach to synthesize Bct C8. The X-Ray diffraction,...
Raman spectra were taken with an UV-vis Raman system on two types of multiwalled carbon nanotubes (MWCNTs, CH 4 -based) and MWCNTs (CO-based), grown catalytically with CH 4 and CO as the carbon sources, respectively, and their H 2 -adsorbing systems. The strongest peak at 1580 cm -1 and the second-strongest band at 1416 cm -1 could be attributed to...
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