Theoretical study of formamide decomposition pathways over (6,0) silicon-carbide nanotube

Verfasser / Beitragende:
[Mehdi Esrafili, Mozhgan Ghanbari, Roghaye Nurazar, Parisa Nematollahi]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/4(2015-04-01), 1-8
Format:
Artikel (online)
ID: 605512493
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024 7 0 |a 10.1007/s00894-015-2615-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2615-3 
245 0 0 |a Theoretical study of formamide decomposition pathways over (6,0) silicon-carbide nanotube  |h [Elektronische Daten]  |c [Mehdi Esrafili, Mozhgan Ghanbari, Roghaye Nurazar, Parisa Nematollahi] 
520 3 |a In this study, we systematically identified possible reaction pathways for the catalytic decomposition of formamide (FM) on a (6,0) silicon-carbide nanotube surface by means of density functional theory. To gain insight into the catalytic activity of the surface, the interaction between the FM and SiCNT is analyzed by detailed electronic analysis such as adsorption energy, charge density difference and activation barrier. The energy barriers for the dehydrogenation, decarbonylation, and dehydration processes are found to be in the range of 0.2-49kcal. Our results indicate that dehydrogenation and decarbonylation pathways are possible routes to get gaseous HNCO, H2, NH3, and CO molecules. In contrast, the reaction of HCONH → CONH + H presents a large activation energy (about 49kcal mol-1) which makes the FM dehydration an unfavorable reaction. Moreover, the dehydrogenation appears to be particularly favorable at low temperatures. The theoretical insights gained in this study could be useful for designing and developing metal-free catalysts based on SiC nanostructures. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Activation energy  |2 nationallicence 
690 7 |a Decomposition  |2 nationallicence 
690 7 |a DFT  |2 nationallicence 
690 7 |a Formamide  |2 nationallicence 
690 7 |a SiCNT  |2 nationallicence 
700 1 |a Esrafili  |D Mehdi  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
700 1 |a Ghanbari  |D Mozhgan  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
700 1 |a Nurazar  |D Roghaye  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
700 1 |a Nematollahi  |D Parisa  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/4(2015-04-01), 1-8  |x 1610-2940  |q 21:4<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2615-3  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2615-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Esrafili  |D Mehdi  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ghanbari  |D Mozhgan  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Nurazar  |D Roghaye  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Nematollahi  |D Parisa  |u Laboratory of Theoretical Chemistry, Department of Chemistry, University of Maragheh, Maragheh, Iran  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/4(2015-04-01), 1-8  |x 1610-2940  |q 21:4<1  |1 2015  |2 21  |o 894