International Journal of Materials Science and Applications

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Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide

Received: 05 January 2016    Accepted: 25 January 2016    Published: 06 March 2016
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Abstract

Reaction can either be acid or base catalysed. Among the different base catalysed reactions MgO has attracted keen interest from researchers in the last two decades. For different types of reactions different base strength catalyst is required. The basic strength of MgO can be modified in different ways including alkali metal doping of MgO which is main aim of this work. Also the acidic and basic properties of which are measured under different atmospheres to demonstrate the impact of this variable. The Alkali doped MgO catalyst was prepared by impregnation method and the acidic and basic sites were determined using CO2 and NH3. It was found that doping of MgO with alkali metals significantly decreased the BET surface area and decreased the phase transition temperature for brucite to periclase by about 50°C. Alkali metal doping also significantly increased the number of basic sites whilst decreasing the number of acidic sites as compared to pure MgO. Under a hydrogen atmosphere the number of basic sites on alkali metal doped MgO significantly increased.

DOI 10.11648/j.ijmsa.20160502.11
Published in International Journal of Materials Science and Applications (Volume 5, Issue 2, March 2016)
Page(s) 36-42
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Alkali Doped MgO, Acidic and Basic Sites, Effect of Atmosphere

References
[1] J. Regalbuto, “Catalyst preparation science and engineering”, 2nd ed., Taylor & Francis Group. New York, pp. 107-111, 2007.
[2] A. Corma, “From microporous to mesoporous molecular sieve materials and their use in catalysis”, Chemical Reviews. vol. 97(6), pp. 2373-2420, 1997.
[3] S. Pugh, M. J. Gillan, “The energetics of NH3 adsorption at the MgO(001)”, Surface Science, vol. 320, pp. 331-343, 1994.
[4] R. Echterhoff, E. Knözinger, “FTIR spectroscopic characterization of the adsorption and desorption of ammonia on MgO surface” Surface Science, vol. 230(1-3), pp. 237- 244, 1990.
[5] W. Zhou, I. E. Wachs, C. J. Kiely, “Nanostructural and chemical characterization of supported metal oxide catalysts aberration corrected analytical electron microscopy”, Current Opinion in Solid State and Materials Science, vol. 16(1), pp. 10-22, 2012.
[6] F. Arena, F. Frusteri, A. Parmaliana, “Alkali promotion of Ni/MgO catalyst” Applied Catalysis A: General, vol. 187(1), pp. 127-140, 1999.
[7] M. Nolan, G. W. Watson, “The electronic structure of alkali doped alkaline earth metal oxides: Li doping of MgO studied with DFT-GGA and GGA+U”, Surface Science, vol. 586, pp. 25-37, 2005.
[8] Y. Ferro, A. Allouche, F. Corà, C. Pisani, C. Girardet, “Adsorption of NH3 on MgO(100): a comparative study of ab initio and semi-classical calculations” Surface Science, vol. 325, pp. 139-150, 1995.
[9] M. A. Aramendía, J. A. Benítez, V. Borau, C. Jiménez, J. M. Marinas, J. R. Ruiz, F. Urbano, “Study of MgO and Pt/MgO Systems by XRD, TPR and 1H MAS NMR” Langmuir, vol. 15, pp. 1192-1197, 1999.
[10] T. Kanno, M. Kobayashi, “Correlation of the surface basicity of alkali metal- modified MgO evaluated by the 2 parameters” Bulletin of the Chemical Society of Japan, vol. 66(12), pp. 3806-3807, 1993.
[11] Y. Li, D. Nakashima, Y. Ichihashi, S. Nishiyama, S. Tsuruya, “Promotion effect of alkali metal added to impregnated Cobalt catalysts in the gas-phase catalytic oxidation of benzyl alcohol” Industrial & Engineering Chemistry Research, vol. 43, pp. 6021-6026, 2004.
[12] T. Matsuda, Z. Minami, Y. Shibata, S. Nagano, H. Miura, K. Sugiyama, “Catalytic properties of magnesium oxides doped with sodium compounds” Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, vol. 82, pp. 1357-1366, 1986.
[13] T. Kanno, M. Kobayashi, “Correlation of the surface basicity of alkali metal- modified MgO”, Bulletin of the Chemical Society of Japan, vol. 66, pp. 3806-3807, 1993.
[14] J. Green, “Calcination of precipitated Mg(OH)2 to active MgO in the production of refractory and chemical grade MgO” Journal of Materials Science, vol. 18, pp. 637- 651, 1983.
[15] A. M. Ghozza, “Surface and catalytic properties of CuO/MgO system doped with K2O and Cr2O3”, Materials Letters, vol. 57, pp. 2120-2129, 2003.
[16] A. S. El-Molla, G. A. El-Shobaky, N. H. Amin, M. N. Hammed, S. N. Sultan, “Catalytic properties of pure and K+-doped CuO/MgO system towards 2-Propanol conversion”, Journal of the Mexican Chemical Society, vol. 57(1), pp. 36-42, 2013.
[17] Y. Ding, G. Zhang, H. Wu, B. Hai, L. Wang, Y. Qian, “Nanoscale magnesium hydroxide and magnesium oxide powders:  Control over size, shape and structure via hydrothermal synthesis” Chemistry of Materials, vol. 13, pp. 435-440, 2001.
[18] B. D. Bond, M. P. W. Jacobs, “The thermal decomposition of sodium nitrate”, Journal of the Chemical Society A: Inorganic, Physical, Theoretical. A, pp. 1265- 1268, 1966.
[19] T. Yoshida, T. Tanaka, H. Yoshida, T. Funabiki, S. Yoshida, T. Murata, “Study of dehydration of magnesium hydroxide”, The Journal of Physical Chemistry, vol. 99, pp. 10890-10896, 1995.
[20] A. V. Dyachenko1, A. S. Opanasuyk, D. I. Kurbatov, S. B. Bolshanina, V. M. Kuznetsov, “Structural properties of magnesium oxide thin films deposited by spray pyrolysis technique”, Proceedings of The International Conference Nanomaterials: Applications and Properties, vol. 3(1), pp. 1-4, 2014.
[21] I. F. Guilliatt, N. H. Brett., “Crystal growth in manganese-doped magnesium oxide powders”, Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, vol. 68, pp. 429-433, 1972.
[22] Shriver and Atkins, Inorganic Chemistry. 5th Ed., New York: Oxford University Press, pp. 22-25, 2010.
[23] M. V. Juskelis, J. P. Slanga, T. G. Roberie, A. W. Peters, “A comparison of CaO, beta, and a dealuminated Y by ammonia TPD and by temperature programmed 2- propylamine cracking”, Journal of Catalysis, vol. 138(1), pp. 391–394, 1992.
[24] M. C. Wu, D. W. Goodman, “Acid/base properties of MgO studied by high resolution electron energy loss spectroscopy”, Catalysis letter, vol. 15, pp. 1-11, 1992.
[25] T. Matsuda, J. Tanabe, N. Hayashi, Y. Sasaki, H. Miura, K. Sugiyama, “Properties of magnesium oxides prepared from various salts and their catalytic activity in 1- Butene Isomerization”, Bulletin of the Chemical Society of Japan, vol. 55(4), pp. 990-994, 1982.
Author Information
  • Department of Chemistry, Kohat University of Science and Technology, Kohat, Pakistan

  • School of Chemistry, University of Glasgow, Scotland, UK

  • Johnson Matthey, Billingham, UK

  • Department of Chemistry, Kohat University of Science and Technology, Kohat, Pakistan

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    Muhammad Bilal, Samuel David Jackson, Alexander Leishman Munnoch, Javed Ali. (2016). Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide. International Journal of Materials Science and Applications, 5(2), 36-42. https://doi.org/10.11648/j.ijmsa.20160502.11

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    Muhammad Bilal; Samuel David Jackson; Alexander Leishman Munnoch; Javed Ali. Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide. Int. J. Mater. Sci. Appl. 2016, 5(2), 36-42. doi: 10.11648/j.ijmsa.20160502.11

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    AMA Style

    Muhammad Bilal, Samuel David Jackson, Alexander Leishman Munnoch, Javed Ali. Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide. Int J Mater Sci Appl. 2016;5(2):36-42. doi: 10.11648/j.ijmsa.20160502.11

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  • @article{10.11648/j.ijmsa.20160502.11,
      author = {Muhammad Bilal and Samuel David Jackson and Alexander Leishman Munnoch and Javed Ali},
      title = {Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide},
      journal = {International Journal of Materials Science and Applications},
      volume = {5},
      number = {2},
      pages = {36-42},
      doi = {10.11648/j.ijmsa.20160502.11},
      url = {https://doi.org/10.11648/j.ijmsa.20160502.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijmsa.20160502.11},
      abstract = {Reaction can either be acid or base catalysed. Among the different base catalysed reactions MgO has attracted keen interest from researchers in the last two decades. For different types of reactions different base strength catalyst is required. The basic strength of MgO can be modified in different ways including alkali metal doping of MgO which is main aim of this work. Also the acidic and basic properties of which are measured under different atmospheres to demonstrate the impact of this variable. The Alkali doped MgO catalyst was prepared by impregnation method and the acidic and basic sites were determined using CO2 and NH3. It was found that doping of MgO with alkali metals significantly decreased the BET surface area and decreased the phase transition temperature for brucite to periclase by about 50°C. Alkali metal doping also significantly increased the number of basic sites whilst decreasing the number of acidic sites as compared to pure MgO. Under a hydrogen atmosphere the number of basic sites on alkali metal doped MgO significantly increased.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Effect of Heating Atmosphere and Alkali Metal Doping on the Acidic and Basic Sites of Magnesium Oxide
    AU  - Muhammad Bilal
    AU  - Samuel David Jackson
    AU  - Alexander Leishman Munnoch
    AU  - Javed Ali
    Y1  - 2016/03/06
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmsa.20160502.11
    DO  - 10.11648/j.ijmsa.20160502.11
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 36
    EP  - 42
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20160502.11
    AB  - Reaction can either be acid or base catalysed. Among the different base catalysed reactions MgO has attracted keen interest from researchers in the last two decades. For different types of reactions different base strength catalyst is required. The basic strength of MgO can be modified in different ways including alkali metal doping of MgO which is main aim of this work. Also the acidic and basic properties of which are measured under different atmospheres to demonstrate the impact of this variable. The Alkali doped MgO catalyst was prepared by impregnation method and the acidic and basic sites were determined using CO2 and NH3. It was found that doping of MgO with alkali metals significantly decreased the BET surface area and decreased the phase transition temperature for brucite to periclase by about 50°C. Alkali metal doping also significantly increased the number of basic sites whilst decreasing the number of acidic sites as compared to pure MgO. Under a hydrogen atmosphere the number of basic sites on alkali metal doped MgO significantly increased.
    VL  - 5
    IS  - 2
    ER  - 

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