Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation

V. A. Sadykov, S. N. Pavlova, G. V. Zabolotnaya, M. V. Chaikina, R. I. Maksimovskaya, S. V. Tsybulya, E. B. Burgina, V. I. Zaikovskii, G. S. Litvak, Yu V. Frolova, D. I. Kochubei, V. V. Kriventsov, E. A. Paukshtis, V. N. Kolomiichuk, V. V. Lunin, N. N. Kuznetsova, Dinesh Kumar Agrawal, R. Roy

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Results of the systematic study of the synthesis of highly dispersed framework zirconium phosphates stabilized by ammonium, lanthanum, aluminum, manganese, and cobalt cations are summarized. The synthesis involves the mechanochemical activation of a mixture of solid reactants (salts) or the sol-gel process each followed by the hydrothermal treatment (HTT) of obtained precursors in the presence of surfactants. The genesis of dispersed systems under investigation is studied by modern physical methods providing information on the state of the bulk and surface of the systems. It is found that the local structure of sol nanoparticles and zirconium phosphate crystalline nuclei arising from mechanochemical activation products depends on the nature of initial substances. This, in its turn, makes different crystallization mechanisms possible during the HTT process: the dissolution/precipitation mechanism or the mechanism of oriented mating of primary particles. The crystallization mechanism in HTT and the reaction system composition influence the nature of resulting complex zirconium phosphate phases, their thermal stability, dispersity, and porous structure parameters. The relationship between the bulk structure parameters of framework zirconium phosphates, which are controlled by varying the chemical composition and conditions of synthesis, and the surface characteristics of the systems (the strength and concentration of different Lewis and Brønsted sites) is studied. It is shown that systems based on framework zirconium phosphates are promising catalysts for paraffin (pentane and hexane) isomerization, the selective oxidation of methane by oxygen into synthesis gas at short contact times, and the oxidative dehydrogenation of propane into propylene.

Original languageEnglish (US)
Pages (from-to)390-398
Number of pages9
JournalKinetics and Catalysis
Volume42
Issue number3
DOIs
StatePublished - May 1 2001

Fingerprint

Isomerization
Catalyst
Phosphate
Zirconium
Oxidation
Paraffin
Paraffins
Phosphates
Synthesis
Catalysts
Crystallization
Activation
Chemical activation
Sol-gel Process
Lanthanum
Propane
Manganese
Cobalt
Thermal Stability
Phase stability

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Modeling and Simulation
  • Computer Science Applications

Cite this

Sadykov, V. A., Pavlova, S. N., Zabolotnaya, G. V., Chaikina, M. V., Maksimovskaya, R. I., Tsybulya, S. V., ... Roy, R. (2001). Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation. Kinetics and Catalysis, 42(3), 390-398. https://doi.org/10.1023/A:1010421500856
Sadykov, V. A. ; Pavlova, S. N. ; Zabolotnaya, G. V. ; Chaikina, M. V. ; Maksimovskaya, R. I. ; Tsybulya, S. V. ; Burgina, E. B. ; Zaikovskii, V. I. ; Litvak, G. S. ; Frolova, Yu V. ; Kochubei, D. I. ; Kriventsov, V. V. ; Paukshtis, E. A. ; Kolomiichuk, V. N. ; Lunin, V. V. ; Kuznetsova, N. N. ; Agrawal, Dinesh Kumar ; Roy, R. / Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation. In: Kinetics and Catalysis. 2001 ; Vol. 42, No. 3. pp. 390-398.
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abstract = "Results of the systematic study of the synthesis of highly dispersed framework zirconium phosphates stabilized by ammonium, lanthanum, aluminum, manganese, and cobalt cations are summarized. The synthesis involves the mechanochemical activation of a mixture of solid reactants (salts) or the sol-gel process each followed by the hydrothermal treatment (HTT) of obtained precursors in the presence of surfactants. The genesis of dispersed systems under investigation is studied by modern physical methods providing information on the state of the bulk and surface of the systems. It is found that the local structure of sol nanoparticles and zirconium phosphate crystalline nuclei arising from mechanochemical activation products depends on the nature of initial substances. This, in its turn, makes different crystallization mechanisms possible during the HTT process: the dissolution/precipitation mechanism or the mechanism of oriented mating of primary particles. The crystallization mechanism in HTT and the reaction system composition influence the nature of resulting complex zirconium phosphate phases, their thermal stability, dispersity, and porous structure parameters. The relationship between the bulk structure parameters of framework zirconium phosphates, which are controlled by varying the chemical composition and conditions of synthesis, and the surface characteristics of the systems (the strength and concentration of different Lewis and Br{\o}nsted sites) is studied. It is shown that systems based on framework zirconium phosphates are promising catalysts for paraffin (pentane and hexane) isomerization, the selective oxidation of methane by oxygen into synthesis gas at short contact times, and the oxidative dehydrogenation of propane into propylene.",
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Sadykov, VA, Pavlova, SN, Zabolotnaya, GV, Chaikina, MV, Maksimovskaya, RI, Tsybulya, SV, Burgina, EB, Zaikovskii, VI, Litvak, GS, Frolova, YV, Kochubei, DI, Kriventsov, VV, Paukshtis, EA, Kolomiichuk, VN, Lunin, VV, Kuznetsova, NN, Agrawal, DK & Roy, R 2001, 'Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation', Kinetics and Catalysis, vol. 42, no. 3, pp. 390-398. https://doi.org/10.1023/A:1010421500856

Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation. / Sadykov, V. A.; Pavlova, S. N.; Zabolotnaya, G. V.; Chaikina, M. V.; Maksimovskaya, R. I.; Tsybulya, S. V.; Burgina, E. B.; Zaikovskii, V. I.; Litvak, G. S.; Frolova, Yu V.; Kochubei, D. I.; Kriventsov, V. V.; Paukshtis, E. A.; Kolomiichuk, V. N.; Lunin, V. V.; Kuznetsova, N. N.; Agrawal, Dinesh Kumar; Roy, R.

In: Kinetics and Catalysis, Vol. 42, No. 3, 01.05.2001, p. 390-398.

Research output: Contribution to journalArticle

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T1 - Scientific bases for the synthesis of highly dispersed framework zirconium phosphate catalysts for paraffin isomerization and selective oxidation

AU - Sadykov, V. A.

AU - Pavlova, S. N.

AU - Zabolotnaya, G. V.

AU - Chaikina, M. V.

AU - Maksimovskaya, R. I.

AU - Tsybulya, S. V.

AU - Burgina, E. B.

AU - Zaikovskii, V. I.

AU - Litvak, G. S.

AU - Frolova, Yu V.

AU - Kochubei, D. I.

AU - Kriventsov, V. V.

AU - Paukshtis, E. A.

AU - Kolomiichuk, V. N.

AU - Lunin, V. V.

AU - Kuznetsova, N. N.

AU - Agrawal, Dinesh Kumar

AU - Roy, R.

PY - 2001/5/1

Y1 - 2001/5/1

N2 - Results of the systematic study of the synthesis of highly dispersed framework zirconium phosphates stabilized by ammonium, lanthanum, aluminum, manganese, and cobalt cations are summarized. The synthesis involves the mechanochemical activation of a mixture of solid reactants (salts) or the sol-gel process each followed by the hydrothermal treatment (HTT) of obtained precursors in the presence of surfactants. The genesis of dispersed systems under investigation is studied by modern physical methods providing information on the state of the bulk and surface of the systems. It is found that the local structure of sol nanoparticles and zirconium phosphate crystalline nuclei arising from mechanochemical activation products depends on the nature of initial substances. This, in its turn, makes different crystallization mechanisms possible during the HTT process: the dissolution/precipitation mechanism or the mechanism of oriented mating of primary particles. The crystallization mechanism in HTT and the reaction system composition influence the nature of resulting complex zirconium phosphate phases, their thermal stability, dispersity, and porous structure parameters. The relationship between the bulk structure parameters of framework zirconium phosphates, which are controlled by varying the chemical composition and conditions of synthesis, and the surface characteristics of the systems (the strength and concentration of different Lewis and Brønsted sites) is studied. It is shown that systems based on framework zirconium phosphates are promising catalysts for paraffin (pentane and hexane) isomerization, the selective oxidation of methane by oxygen into synthesis gas at short contact times, and the oxidative dehydrogenation of propane into propylene.

AB - Results of the systematic study of the synthesis of highly dispersed framework zirconium phosphates stabilized by ammonium, lanthanum, aluminum, manganese, and cobalt cations are summarized. The synthesis involves the mechanochemical activation of a mixture of solid reactants (salts) or the sol-gel process each followed by the hydrothermal treatment (HTT) of obtained precursors in the presence of surfactants. The genesis of dispersed systems under investigation is studied by modern physical methods providing information on the state of the bulk and surface of the systems. It is found that the local structure of sol nanoparticles and zirconium phosphate crystalline nuclei arising from mechanochemical activation products depends on the nature of initial substances. This, in its turn, makes different crystallization mechanisms possible during the HTT process: the dissolution/precipitation mechanism or the mechanism of oriented mating of primary particles. The crystallization mechanism in HTT and the reaction system composition influence the nature of resulting complex zirconium phosphate phases, their thermal stability, dispersity, and porous structure parameters. The relationship between the bulk structure parameters of framework zirconium phosphates, which are controlled by varying the chemical composition and conditions of synthesis, and the surface characteristics of the systems (the strength and concentration of different Lewis and Brønsted sites) is studied. It is shown that systems based on framework zirconium phosphates are promising catalysts for paraffin (pentane and hexane) isomerization, the selective oxidation of methane by oxygen into synthesis gas at short contact times, and the oxidative dehydrogenation of propane into propylene.

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