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Journal
2011 | 9 | 2 | 240-244
Article title

The effect of iron nanocrystallites’ size in catalysts for ammonia synthesis on nitriding reaction and catalytic ammonia decomposition

Content
Title variants
Languages of publication
EN
Abstracts
EN
Iron catalyst for ammonia synthesis of various mean sizes of iron nanocrystallites were nitrided with ammonia in a differential reactor equipped with systems that made it possible to conduct both thermogravimetric measurements and hydrogen concentration analyses in the reacting gas mixture. The nitriding process was investigated under atmospheric pressure at the temperature of 475°C. It was found that along with an increase of mean size of iron nanocrystallites, with a decrease of specific surface area of the samples, nitriding degree of solid samples increased. At the same time the rate of surface reaction of catalytic ammonia decomposition decreased. Along with an increase of the samples’ specific surface area an increase of the catalyst’s activity was observed. However, it was also observed that the concentration of active sites on the catalysts’ surface decreased along with an increase of specific surface area.
Publisher

Journal
Year
Volume
9
Issue
2
Pages
240-244
Physical description
Dates
published
1 - 4 - 2011
online
17 - 2 - 2011
Contributors
author
  • Institute of Chemical and Environment Engineering
  • Institute of Chemical and Environment Engineering
References
  • [1] A. Nielsen, An Investigation on Promoted Iron (Jul. Gjellerups Forlag, Copenhagen, 1968)
  • [2] J.R. Jennings (Ed.), Catalytic ammonia synthesis fundamentals and practice (Plenum Press, New York, 1991)
  • [3] A. Nielsen (Ed.), Ammonia, catalyst and manufacture (Springer-Verlag, Berlin, 1995)
  • [4] W.G. Frankenburg, In: P.H. Emmet (Ed.), Catalysis (Reinhold, New York, 1955) Vol. 3
  • [5] G. Ertl, In: J.R. Jennings (Ed.), Catalytic ammonia synthesis fundamentals and practice (Plenum Press, New York, 1991)
  • [6] G. Ertl, S.B. Lee, M. Weiss, Surf. Sci. 114, 527 (1982) http://dx.doi.org/10.1016/0039-6028(82)90703-8[Crossref]
  • [7] G. Ertl, In: T. Inui (Ed.), Successful design of catalysts (Elsevier, Amsterdam, 1998)
  • [8] M. Figurski, W. Arabczyk, Z. Lendzion-Bieluń, R.J. Kaleńczuk, S. Lenart, Appl. Catal. A: General 247, 9 (2003) http://dx.doi.org/10.1016/S0926-860X(03)00084-X[Crossref]
  • [9] M. Figurski, W. Arabczyk, Z. Lendzion-Bieluń, S. Lenart, Appl. Catal. A: General 266, 11 (2004) http://dx.doi.org/10.1016/j.apcata.2004.01.032[Crossref]
  • [10] Z. Lendzion-Bieluń, W. Arabczyk, Appl. Catal. A: General 207, 37 (2001) http://dx.doi.org/10.1016/S0926-860X(00)00614-1[Crossref]
  • [11] Z. Lendzion-Bieluń, W. Arabczyk, M. Figurski, Appl. Catal. A: General 227, 255 (2002) http://dx.doi.org/10.1016/S0926-860X(01)00938-3[Crossref]
  • [12] W. Arabczyk, I. Jasińska, Przem. Chem. 85/2, 130 (2006)
  • [13] W. Arabczyk, U. Narkiewicz, D. Moszyński, Langmuir 15/18, 5785 (1999) http://dx.doi.org/10.1021/la981132x[Crossref]
  • [14] W. Arabczyk, K. Kałucki, In: L. Guczi, F. Salymosi, P. Tétényi (Eds.), New Frontiers in Catalysis. Proceedings of the 10th International Congress on Catalysis, 19–24 July 1992, Budapest, Hungary; Stud. Surf. Sci. Catal. 75, 2539 (1993)
  • [15] W. Arabczyk, U. Narkiewicz, K. Kałucki, Vacuum 45, 267 (1994) http://dx.doi.org/10.1016/0042-207X(94)90186-4[Crossref]
  • [16] W. Arabczyk, Polish Journal of Chemical Technology 7/3, 8 (2005)
  • [17] I. Jasińska, K. Lubkowski, W. Arabczyk, Annals of the Polish Chemical Society 2, 1205 (2003)
  • [18] W. Arabczyk, I. Jasińska, K. Lubkowski, Reac. Kin. Catal. Lett. 83/2, 385 (2004) http://dx.doi.org/10.1023/B:REAC.0000046101.89184.b8[Crossref]
  • [19] R. Schlögl, In: J.R. Jennings (Ed.), Catalytic ammonia synthesis fundamentals and practice (Plenum Press, New York, 1991)
  • [20] I. Moszyńska, D. Moszyński, W. Arabczyk, Przem. Chem. 88/5, 526 (2009)
  • [21] K. Kiełbasa, R. Pelka, W. Arabczyk, J. Phys. Chem. A 114/13, 4531 (2010) http://dx.doi.org/10.1021/jp9099286[Crossref]
  • [22] W. Arabczyk, J. Zamłynny, D. Moszyński, Polish J. Chem. 80, 345 (2006)
  • [23] W. Arabczyk, D. Moszyński, U. Narkiewicz, R. Pelka, M. Podsiadły, Catal. Today 124, 43 (2007) http://dx.doi.org/10.1016/j.cattod.2007.02.003[Crossref]
  • [24] W. Arabczyk, J. Zamłynny, D. Moszyński, K. Kałucki, Polish J. Chem. 79, 1495 (2005)
  • [25] W. Arabczyk, R. Pelka, J. Phys. Chem. A 113, 411 (2009) http://dx.doi.org/10.1021/jp8079759[Crossref]
  • [26] R. Pelka, I. Moszyńska, W. Arabczyk, Catal. Lett. 128, 72 (2009) http://dx.doi.org/10.1007/s10562-008-9758-0[Crossref]
  • [27] W. Arabczyk, R. Wróbel, Solid State Phenomena 94, 185 (2003) http://dx.doi.org/10.4028/www.scientific.net/SSP.94.185[Crossref]
  • [28] R. Pelka, P. Glinka, W. Arabczyk, Materials Science-Poland 26/2, 349 (2008)
  • [29] R. Pelka, W. Arabczyk, Topics in Catalysis 52/11, 1506 (2009) http://dx.doi.org/10.1007/s11244-009-9297-y[Crossref]
  • [30] Z. Kowalczyk, J. Sentek, S. Jodzis, M. Muhler, O. Hinrichsen, J. Catal. 169, 407 (1997) http://dx.doi.org/10.1006/jcat.1997.1664[Crossref]
  • [31] N. Takezawa, I. Toyoshima, J. Phys. Chem. 70, 594 (1966) http://dx.doi.org/10.1021/j100874a509[Crossref]
  • [32] N. Takezawa, I. Toyoshima, J. Res. Inst. Catalysis, Hokkaido Univ. 14, 41 (1966)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-010-0145-5
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