High-resolution transmission electron microscopy of heat-treated C₆₀nanotubes

Study on structure of heat‐treated fullerene nanowhiskers and their field electron emission characteristics

“…(a), respectively. The inner structures of both ends of the nanowhisker resemble that of glassy carbon, that is, an agglomerate of crumpled atomic layers, as shown in Figs (b) and (c). The spacing of the observed atomic layers is 0.34 ± 0.05 nm and corresponds to the interlayer spacing of graphite, which is consistent with the electron diffraction pattern in Fig.…”

High-temperature calcined fullerene nanowhiskers as well as long needle-like multi-wall carbon nanotubes have abilities to induce NLRP3-mediated IL-1β secretion

“…MWCNT-SD1 and MWCNT-SD2 were by Showa-Denko Co., Ltd. (Tokyo, Japan). HTCFNW-L and -S were prepared by heating fullerene nanowhiskers at 900°C in vacuum [21]. Fullerene nanowhiskers were synthesized from C 60 fullerene by a liquid-liquid interfacial precipitation method [23].…”

“…HTCFNWs are the fullerene nanowhiskers heat-treated in vacuum at 900°C and are composed of amorphous carbon [21]. Two types of HTCFNWs with different lengths and diameters (Fig.…”

“…In this study, we employed high-temperature calcined fullerene nanowhiskers (HTCFNWs), which are amorphous carbon nanofibers and have a needle-like morphology with similar length to MWCNTs [21]. Notably, HTCFNWs do not contain metal impurities, because they are produced from fullerene nanowhiskers by heating in vacuum [21].…”

“…Notably, HTCFNWs do not contain metal impurities, because they are produced from fullerene nanowhiskers by heating in vacuum [21]. Fullerene nanowhiskers are thin, single crystal nanofibers composed of C 60 fullerene molecules that are bound via van der Waals forces [22].…”