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원자제어 저차원 전자계 연구단
원자제어 저차원 전자계 연구단
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Probing distinct fullerene formation processes from carbon precursors of different sizes and structures

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Title
Probing distinct fullerene formation processes from carbon precursors of different sizes and structures
Author(s)
Han J.Y.; Choi T.S.; Soyoung Kim; Lee J.W.; Ha Y.; Jeong K.S.; Kim H.; Hee Cheul Choi; Kim H.I.
Publication Date
2016-08
Journal
ANALYTICAL CHEMISTRY, v.88, no.16, pp.8232 - 8238
Publisher
AMER CHEMICAL SOC
Abstract
Fullerenes, cage-structured carbon allotropes, have been the subject of extensive research as new materials for diverse purposes. Yet, their formation process is still not clearly understood at the molecular level. In this study, we performed laser desorption ionization-ion mobility-mass spectrometry (LDI-IM-MS) of carbon substrates possessing different molecular sizes and structures to understand the formation process of fullerene. Our observations show that the formation process is strongly dependent on the size of the precursor used, with small precursors yielding small fullerenes and large graphitic precursors generally yielding larger fullerenes. These results clearly demonstrate that fullerene formation can proceed via both bottom-up and top-down processes, with the latter being favored for large precursors and more efficient at forming fullerenes. Furthermore, we observed that specific structures of carbon precursors could additionally affect the relative abundance of C60 fullerene. Overall, this study provides an advanced understanding of the mechanistic details underlying the formation processes of fullerene. © 2016 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/2884
ISSN
0003-2700
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Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
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