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Ni/C nanostructures: Impregnating-method preparation, textural and structural features, and catalytic property for the hydrogen production

Published online by Cambridge University Press:  25 November 2013

Félix Galindo-Hernández ,
Jin-An Wang ,
Lifang Chen ,
Xim Bokhimi ,
Alejandro Pérez-Larios  and
Ricardo Gómez
Félix Galindo-Hernández*
Affiliation:
Universidad Nacional Autónoma de México (U.N.A.M.), 01000 México City, México; ESIQIE, Instituto Politécnico Nacional, 07738 México D. F., México; and Department of Chemistry, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, D.F. 09340, México
Jin-An Wang
Affiliation:
ESIQIE, Instituto Politécnico Nacional, 07738 México D. F., México
Lifang Chen
Affiliation:
ESIQIE, Instituto Politécnico Nacional, 07738 México D. F., México
Xim Bokhimi
Affiliation:
Universidad Nacional Autónoma de México (U.N.A.M.), 01000 México City, México
Alejandro Pérez-Larios
Affiliation:
Department of Chemistry, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, D.F. 09340, México
Ricardo Gómez
Affiliation:
Department of Chemistry, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, D.F. 09340, México
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A series of Ni/C catalysts with different Ni content (15, 20, and 30 wt% Ni) were prepared by the wet incipient impregnation method. Their textural properties were studied by surface fractal dimension (Ds) and nonlocal density functional theory using nitrogen sorption data. Their structural properties were studied by x-ray diffraction, Rietveld refinement, radial distribution functions (RDFs), and electron density maps of Fourier. Surface areas of Ni/C catalysts decreases slightly from 614 to 533 m2/g as Ni content increases from 15 to 30 wt%; however, the Ni crystallite size (5.1–31.4 nm) increases as the nickel content increases. Many point defects were found by Rietveld refinement in nickel nanostructures of Ni/C catalysts with 20 and 30 wt% Ni. This was confirmed by RDFs and electronic density maps. On the other hand, the hydrogen production via the photodehydrogenation of ethanol is very sensitive to the nickel crystallite size and the number Ni atoms in nickel nanostructures. The maximum reaction rate (363.64 μmol/h) is achieved on Ni/C catalyst with 15 Wt% Ni content which has the smallest crystallite size (5.1 nm) and less point defects in its nickel nanostructures. Ab initio calculations were performed to propose a reaction mechanism in the photodehydrogenation of ethanol.

Keywords

Ni/C catalystsRietveld refinementnickel nanostructuresnickel point defectselectron density mapsDFThydrogen productionethanol photodehydrogenation
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 23 , 14 December 2013 , pp. 3297 - 3309
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

Biswas, P. and Kunzru, D.: Steam reforming of ethanol for production of hydrogen over Ni/CeO2–ZrO2 catalyst: Effect of support and metal loading. Int. J. Hydrogen Energy 32, 969 (2007).Google Scholar
Zhang, Y., Wang, Z., Zhou, J., Liu, J., and Cen, K.: Catalytic decomposition of hydrogen iodide over pre-treated Ni/CeO2 catalysts for hydrogen production in the sulfur–iodine cycle. Int. J. Hydrogen Energy 34, 8792 (2009).CrossRefGoogle Scholar
Lu, Y., Li, S., Guo, L., and Zhang, X.: Hydrogen production by biomass gasification in supercritical water over Ni/γ-Al2O3 and Ni/CeO2-γAl2O3 catalysts. Int. J. Hydrogen Energy 35, 7161 (2010).Google Scholar
Chesnokov, V.V. and Chichkan, A.S.: Production of hydrogen by methane catalytic decomposition over Ni–Cu–Fe/Al2O3 catalyst, hydrogen production by ethanol steam reforming over Cu–Ni supported catalysts. Int. J. Hydrogen Energy 34, 2979 (2009).Google Scholar
Vizcaíno, A.J., Carrero, A., and Calles, J.A.: Hydrogen production by ethanol steam reforming over Cu–Ni supported catalysts. Int. J. Hydrogen Energy 32, 1450 (2007).Google Scholar
Venugopal, A., Kumar, S.N., Ashok, J., Prasad, D.H., Kumari, V.D., Prasad, K.B.S., and Subrahmanyam, M.: Hydrogen production by catalytic decomposition of methane over. Int. J. Hydrogen Energy 32, 1782–1788 (2007).Google Scholar
Yang, Y., Ma, J., and Wu, F.: Production of hydrogen by steam reforming of ethanol over a Ni/ZnO catalyst. Int. J. Hydrogen Energy 31, 877 (2006).Google Scholar
Pereira, M.F.R., Órfão, J.J.M., and Figueiredo, J.L.: Oxidative dehydrogenation of ethylbenzene on activated carbon catalysts 3. Catalyst deactivation. App. Catal., A 218, 307 (2001).Google Scholar
Weissermel, K. and Arpe, H.J.: Industrial Organic Chemistry, 1st ed. (Reverte, Spain, 1981).Google Scholar
Lowell, S., Shields, J.E., Thomas, M.A., and Thommes, M.: Characterization of Porous Solids and Powders: Surface Area, Pore Size and density, 1st ed. (Kluwer Academic Publishers, Netherlands, 2004), pp. 114, 149.Google Scholar
Ravikovitch, P.I. and Neimark, A.V.: Density functional theory of adsorption in spherical cavities and pore size characterization of templated nanoporous silicas with cubic and three-dimensional hexagonal structures. Langmuir 18, 1550 (2002).Google Scholar
Neimark, A.V., Ravikovitch, P.I., and Vishnyakov, A.: Bridging scales from molecular simulations to classical thermodynamics: Density functional theory of capillary condensation in nanopores. J. Phys. Condens. Matter 15, 347 (2003).Google Scholar
Ojeda, M.L., Esparza, J.M., Campero, A., Cordero, S., Kornhauser, I., and Rojas, F.: On comparing BJH and NLDFT pore-size distributions determined from N2 sorption on SBA-15 substrata. Phys. Chem. Chem. Phys. 5, 1859 (2003).Google Scholar
Lukens, W.W., Schmidt-Winkel, P., Zhao, D., Feng, J., and Stucky, G.D., Evaluating pore sizes in mesoporous materials: A simplified standard adsorption method and a simplified Broekhoff−de Boer method. Langmuir 15, 5403 (1999).Google Scholar
Mayagoitia, V., Rojas, F., and Kornhauser, I.: Pore network interactions in ascending processes relative to capillary condensation. J. Chem. Soc. Faraday Trans. 1, 2931 (1985).Google Scholar
Wang, F. and Li, S.: Determination of the surface fractal dimension for porous media by capillary condensation. Ind. Eng. Chem. Res. 36, 1598 (1997).Google Scholar
Neimark, A.: A new approach to the determination of the surface fractal dimension of porous solids. Physica A 191, 258 (1992).Google Scholar
Pearson, R.G.: Chemical Hardness. Applications from Molecules to Solids, 1st ed. (Wiley-VCH, Germany, 1997).Google Scholar
Pearson, R.G.: Recent advances in the concept of hard and soft acids and bases. J. Chem. Educ. 64, 561 (1987).Google Scholar
Parr, R.G. and Pearson, R.G.: Absolute hardness: Companion parameter to absolute electronegativity. J. Am. Chem. Soc. 105, 7512 (1983).Google Scholar
Pearson, R.G.: Hard, and soft acids and bases. J. Am. Chem. Soc. 85, 3533 (1963).Google Scholar
Escobedo Morales, A., Sánchez Mora, E., and Pal, U.: Use of diffuse reflectance spectroscopy for optical characterization of un-supported nanostructures. Revista Mexicana de Física 53, 18 (2007).Google Scholar
http://www.esi2.us.es/IMM2/estructuras_cristalinas/estructuras_cristalinas.html.Google Scholar
March, N.H.: Electron Density Theory of Atoms and Molecules, 1st ed. (Academic Press, New York, 1992).Google Scholar
Magini, M. and Cabrini, A.: Programme en FORTRAN IV pour l'analyse des données expérimentales relatives à la diffusion des rayons X par des substances liquides, amorphes et microcristallisées. J. Appl. Cryst. 5, 14 (1972).Google Scholar
http://accelrys.com/products/materials-studio/.Google Scholar
Perdew, J.P., Burke, K., and Ernzerhof, M.: Generalized gradient approximation made simple. Phys. Rev. Lett. 77, 3865 (1996).Google Scholar
Hamann, D.R., Schlüter, M., and Chiang, C.: Norm-conserving pseudopotentials. Phys. Rev. Lett. 43, 1494 (1979).Google Scholar
Zhang, Y., Dragan, A., and Geddes, C.D.: Broad wavelength range metal-enhanced fluorescence using nickel nanodeposits. J. Phys. Chem. C 113, 15811 (2009).Google Scholar
Shuwen, Z., Xia, Y., Wing-Cheung, L., Yating, Z., Rui, H., Xuan-Quyen, D., Ho-Pui, H., and Yonga, K-T.: Size dependence of Au NP-enhanced surface plasmon resonance based on differential phase measurement. Sens. Actuators, B 176, 1128 (2013).Google Scholar
Comerta, H. and Pratt, J.N.: The standard molar Gibbs free energy of formation of NiO from high-temperature e.m.f. measurements. J. Chem. Thermodyn. 12, 1145 (1984).Google Scholar
Agullo-López, F., Catlow, C.R.A., and Townsend, P.D.: Point Defects in Materials, 1st ed. (Academic Press, Waltham, MA, 1988), p. 3.Google Scholar
Schultz, H., Takamura, J., Doyama, M., and Kiritani, M.: Point Defects, and Defect Interactions in Metals, 1st ed. (North-holland, Amsterdam, 1982).Google Scholar
Johnson, R.A.: Empirical potentials and their use in the calculation of energies of point defects in metals. J. Phys. F: Met. Phys. 3, 295 (1973).Google Scholar
Kittel, C.: Introduction to Solid State Physics, 7th ed. (John Wiley and Sons, Inc., New York, 1996), pp. 541–543.Google Scholar
Levenspiel, O.: Chemical Reaction Engineering, 3rd ed. (Wiley, New Delhi, India, 2007), p. 50.Google Scholar
Kawai, M., Kawai, T., Naito, S., and Tamaru, K.: The mechanism of photocatalytic reaction over Pt/TiO2: Production of H2 and aldehyde from gaseous alcohol and water. Chem. Phys. Lett. 110, 58 (1984).Google Scholar