Mechanochemical synthesis of double vanadate in Cu–Fe–V–O system and its physicochemical and catalytic properties

Wieczorek-Ciurowa, K.; Rakoczy, Jan; Blonska-Tabero, A.; Filipek, E.; Nizioł, Joanna; Dulian, Piotr

doi:10.1016/j.cattod.2010.12.007

Cited by 15 publications

(9 citation statements)

References 32 publications

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“…This prevents milled material from the additional reactions with air components such as oxygen or nitrogen. Negative phenomenon of agglomeration of grains as a result of highenergy milling process can be reduced by using water or alcohol as a medium [21,[40][41][42][43][44][45][46][47][48][49][50][51][52].…”

Section: Process Parameters Of Mechanochemical Treatmentmentioning

confidence: 99%

Solid-State Mechanochemical Syntheses of Perovskites

Dulian¹

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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The chapter presents the possibility of applying high-energy ball milling techniques to carry out the synthesis of ceramics with perovskite structure, thereby eliminating prolonged use of high temperatures in their preparation.On the examples of alkaline-earth metal perovskites, an influence of the most significant parameters of mechanochemical treatment on their forming process and product quality was illustrated. For the first time, it was done that the contamination of the product derived from the attrition of the grinding media and internal parts of the vial can constitute modifiers of the functional properties of produced electroceramics.Dielectric characteristics of mechanochemically produced materials as well as using hightemperature solid synthesis were compared.

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Section: Process Parameters Of Mechanochemical Treatmentmentioning

confidence: 99%

Solid-State Mechanochemical Syntheses of Perovskites

Dulian¹

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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“…These syntheses enable the production of new functional materials (including catalysts) with improved and/or novel physical and chemical properties [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Catalytic characteristics of a copper–alumina nanocomposite formed by the mechanochemical route

Rakoczy

Nizioł

Wieczorek-Ciurowa

et al. 2012

Reac Kinet Mech Cat

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Mechanochemical synthesis has been successfully employed to prepare Cu 0 -Al 2 O 3 composite powders. The formation of the designed compound is due to the self-propagating reaction of CuO and Al 0 powders by high-energy ball milling using a planetary ball mill (Pulverissette 6, Fritsch GmbH). The products were characterized by means of nitrogen adsorption (BET surface area), X-ray diffraction, scanning electron microscopy and temperature-programmed reduction of hydrogen. The catalytic properties of the prepared materials were tested in the methanol steam reforming (SRM) process. The results show that the Cu 0 -Al 2 O 3 system is active towards hydrogen in SRM. Hydrogen yields are satisfactory; however, methanol conversion to CO as a by-product is observed.

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“…It is known that in one of the cross sections of the CuO-V 2 O 5 -Fe 2 O 3 system, i.e. in the system FeVO 4 -Cu 3 V 2 O 8 , a double vanadate(V) of the formula Cu 3 Fe 4 V 6 O 24 is formed [3][4][5]. This compound is met in two crystallographic modifications.…”

Section: Introductionmentioning

confidence: 99%

“…The synthesis of Cu 3 Fe 4 V 6 O 24 by the conventional solid-state reaction leads to its another form, i.e. b-Cu 3 Fe 4 V 6 O 24 [3][4][5] whose structure is like that of mineral howardevansite, NaCuFe 2 V 3 O 12 [7]. According to Belik et al [8], the phase of the lyonsite type structure can be obtained by the conventional method of sintering, but the phase thus obtained has a composition different from that describing the mineral, and moreover, it has a certain range of homogeneity as expressed by Cu 3?1.5x Fe 4-x V 6 O 24 (0.667 B x \ 0.778).…”

Section: Introductionmentioning

confidence: 99%

The synthesis and some properties of new compound Cu13Fe4V10O44

Blonska-Tabero

2011

J Therm Anal Calorim

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A new compound with the formula Cu 13 Fe 4 V 10 O 44 has been obtained as a result of a solid-state reactions occurring during heating the mixtures both of oxides: CuO, V 2 O 5 , Fe 2 O 3 and vanadates: Cu 5 V 2 O 10 , Cu 3 Fe 4 V 6 O 24. The DTA measurements were used to choose the heating temperatures as well as for determination of thermal stability of the new compound. Cu 13 Fe 4 V 10 O 44 melts incongruently at 790 ± 5°C. The new phase crystallizes in the monoclinic system. The indexing results and the calculated unit cell parameters for Cu 13 Fe 4 V 10 O 44 are given. Its infra-red spectrum and image obtained by means of an electron scanning microscope are presented.

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Mechanochemical synthesis of double vanadate in Cu–Fe–V–O system and its physicochemical and catalytic properties

Cited by 15 publications

References 32 publications

Solid-State Mechanochemical Syntheses of Perovskites

Solid-State Mechanochemical Syntheses of Perovskites

Catalytic characteristics of a copper–alumina nanocomposite formed by the mechanochemical route

The synthesis and some properties of new compound Cu13Fe4V10O44

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