A DFT study on the possibility of using boron nitride nanotubes as a dehydrogenation catalyst for methanol

作者: Mehdi D. Esrafili , Roghaye Nurazar

DOI: 10.1016/J.APSUSC.2014.06.148

关键词:

摘要: Abstract The adsorption and subsequent dissociative dehydrogenation reaction of methanol (CH 3 OH) on (6,0) zigzag boron nitride nanotube (BNNT) are investigated using the density functional theory calculations. Five types four channels identified. calculated energies range from −1.4 to −21.9 kcal/mol. results indicate that O–H bond scission is most favorable pathway tube surface. It predicted surface BNNT, rate-determining step adsorbed OCH . activation energy barrier for generation a H 2 molecule its desorption approximately 28 kcal/mol. side generates CH OH fragments exothermic by −1.6 kcal/mol with an energy-barrier height 58 kcal/mol.

参考文章(50)
A. Bondi, van der Waals Volumes and Radii The Journal of Physical Chemistry. ,vol. 68, pp. 441- 451 ,(1964) , 10.1021/J100785A001
Jeff Greeley, Manos Mavrikakis, Methanol Decomposition on Cu(111): A DFT Study Journal of Catalysis. ,vol. 208, pp. 291- 300 ,(2002) , 10.1006/JCAT.2002.3586
Alan E. Reed, Larry A. Curtiss, Frank Weinhold, Intermolecular interactions from a natural bond orbital, donor-acceptor viewpoint Chemical Reviews. ,vol. 88, pp. 899- 926 ,(1988) , 10.1021/CR00088A005
Wei-Qiang Han, Alex Zettl, Functionalized boron nitride nanotubes with a stannic oxide coating: a novel chemical route to full coverage. Journal of the American Chemical Society. ,vol. 125, pp. 2062- 2063 ,(2003) , 10.1021/JA0292501
Jeff Greeley, Manos Mavrikakis, Competitive Paths for Methanol Decomposition on Pt(111) Journal of the American Chemical Society. ,vol. 126, pp. 3910- 3919 ,(2004) , 10.1021/JA037700Z
Peter M. Budd, Anna Butler, James Selbie, Khalid Mahmood, Neil B. McKeown, Bader Ghanem, Kadhum Msayib, David Book, Allan Walton, The potential of organic polymer-based hydrogen storage materials Physical Chemistry Chemical Physics. ,vol. 9, pp. 1802- 1808 ,(2007) , 10.1039/B618053A
Cong T. Vo, Lam K. Huynh, J.-Y. Hung, Jyh-Chaing Jiang, Methanol adsorption and decomposition on ZnO(101¯0) surface: A density functional theory study Applied Surface Science. ,vol. 280, pp. 219- 224 ,(2013) , 10.1016/J.APSUSC.2013.04.135
Xiaojun Wu, Jinlong Yang, J. G. Hou, Qingshi Zhu, Hydrogen adsorption on zigzag (8,0) boron nitride nanotubes. Journal of Chemical Physics. ,vol. 121, pp. 8481- 8485 ,(2004) , 10.1063/1.1799958