Precursor and formation mechanism in the synthesis of carbon nanotubes by chemical vapor deposition

Autor:	Daisuke Nakahara, Yukihiko Matsumura, Shuhei Inoue
Rok vydání:	2014
Předmět:	Ethylene Kinetics Inorganic chemistry General Physics and Astronomy Activation energy Chemical vapor deposition Carbon nanotube Dissociation (chemistry) law.invention chemistry.chemical_compound chemistry law Hydroxyl radical Physical and Theoretical Chemistry Carbon monoxide
Zdroj:	Chemical Physics Letters. :217-221
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2014.10.062
Popis:	The precursor and its formation kinetics were investigated using isotopes of ethanol with supporting calculations using G aussian 09. The major products were CH2OH, C2H5, and ethylene. At temperatures exceeding 900 °C, carbon monoxide was also formed, but as less than 20% of the total product. The synthesis of CH2OH and C2H5 were reasonably explained by theoretical calculations; however, the synthesis of ethylene could not be explained by examination of the activation energy. However, if we assumed a specific dissociation order, the activation energy decreased owing to the dissociation of a hydroxyl radical, which was consistent with experimental results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c46708becac7c1ca90c5598f87d69dfc https://doi.org/10.1016/j.cplett.2014.10.062 Zobrazit plný text záznamu Full Text from ScienceDirect