Effective ternary copper-cerium-cobalt catalysts synthesized via a modified pechini method for selective oxidation of ethylbenzene

In the present work, LaNi0.5Ti0.45Co0.05O3, LaNi0.45Co0.05Ti0.5O3, and LaNi0.5Ti0.5O3 perovskites were synthesized by the modified Pechini method. These materials were characterized using X-ray fluorescence, scanning electron microscopy, and powder X-ray diffraction coupled to the Rietveld method. The crystal structure of these materials is orthorhombic, with space group Pbnm (No 62). The unit-cell parameters are a = 5.535(5) Å, b = 5.527(3) Å, c = 7.819(7) Å, V = 239.2(3) Å3, for the LaNi0.5Ti0.45Co0.05O3, a = 5.538(6) Å, b = 5.528(4) Å, c = 7.825(10) Å, V = 239.5(4) Å3, for the LaNi0.45Co0.05Ti0.5O3, and a = 5.540(2) Å, b = 5.5334(15) Å, c = 7.834(3) Å, V = 240.2(1) Å3, for the LaNi0.5Ti0.5O3.

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Synthesis and Characterization of Multiferroic NiFe2O4/BiFeO3 Nanocomposites by Modified Pechini Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.197-198.456 ◽

2011 ◽

Vol 197-198 ◽

pp. 456-459

Author(s):

Xian Ming Liu ◽

Wen Liang Gao

Keyword(s):

Pechini Method ◽

Synthesis And Characterization ◽

X Ray Diffraction ◽

Magnetic Bias ◽

Field Frequency ◽

Magnetic Field Frequency ◽

X Ray ◽

Structure And Morphology ◽

Modified Pechini Method

Spinel-perovskite multiferroics of NiFe2O4/BiFeO3 nanoparticles were prepared by modified Pechini method. The structure and morphology of the composites were examined by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the composites consisted of spinel NiFe2O4 and perovskite BiFeO3 after annealed at 700°C for 2h, and the particle size ranges from 40 to 100nm. VSM and ME results indicated that the nanocomposites exhibited both tuning magnetic properties and a ME effect. The ME effect of the nanocomposites strongly depended on the magnetic bias and magnetic field frequency.

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A study of alumina–zirconia mixed oxides prepared by the modified Pechini method as Co catalyst supports in CO hydrogenation

Applied Catalysis A General ◽

10.1016/j.apcata.2006.02.011 ◽

2006 ◽

Vol 303 (2) ◽

pp. 268-272 ◽

Cited By ~ 10

Author(s):

Soipatta Soisuwan ◽

Joongjai Panpranot ◽

David L. Trimm ◽

Piyasan Praserthdam

Keyword(s):

Co Hydrogenation ◽

Mixed Oxides ◽

Pechini Method ◽

Catalyst Supports ◽

Co Catalyst ◽

Modified Pechini Method

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SrSnO3 perovskite obtained by the modified Pechini method—Insights about its photocatalytic activity

Journal of Photochemistry and Photobiology A Chemistry ◽

10.1016/j.jphotochem.2018.10.028 ◽

2019 ◽

Vol 369 ◽

pp. 181-188 ◽

Cited By ~ 10

Author(s):

Ana Rita Ferreira Alves Teixeira ◽

Alex de Meireles Neris ◽

Elson Longo ◽

José Rodrigues de Carvalho Filho ◽

Amer Hakki ◽

...

Keyword(s):

Photocatalytic Activity ◽

Pechini Method ◽

Modified Pechini Method

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Electrical and Dielectric Characterization of Bi12GeO20Prepared by Modified Pechini Method

Advances in Condensed Matter Physics ◽

10.1155/2014/968349 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 4

Author(s):

C. G. P. Moraes ◽

F. A. A. Jesus ◽

Z. S. Macedo

Keyword(s):

Volume Fraction ◽

Pechini Method ◽

Dark Conductivity ◽

High Frequencies ◽

Dielectric Characterization ◽

Calcination Temperatures ◽

Grain Sizes ◽

Synthesis Parameters ◽

Modified Pechini Method

Bismuth germanate (Bi12GeO20) ceramics were produced using modified Pechini route, and the synthesis parameters, crystalline phases, microstructure, and sintering conditions were investigated.Bi12GeO20powders with submicrometric particle sizes were investigated for calcination temperatures from 400 to 600°C, with soaking times of 1 h and 5 h. Controlling the synthesis parameters, dense ceramics with two different grain sizes of 3.4 ± 0.5 µm and 5.7 ± 0.8 µm could be produced after sintering at 750°C/1 h. The electric and dielectric properties of these ceramics were determined by impedance spectroscopy (IS). From the results, it was concluded that the dielectric permittivity measured at high frequencies is insensitive to the grain size, while the AC dark conductivity presents a noticeable dependency on this feature. This behaviour was discussed on the basis of a Maxwell-Wagner interfacial relaxation, whose intensity depends directly on the volume fraction of grain boundaries in the sample.

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Multiferroic properties of Bi0.5K0.5TiO3–BiFe1−xCoxO3 (0 ≤ x ≤ 0.2) solid solution

RSC Advances ◽

10.1039/c5ra19768f ◽

2015 ◽

Vol 5 (126) ◽

pp. 104210-104215 ◽

Cited By ~ 2

Author(s):

X. Z. Zuo ◽

J. Yang ◽

B. Yuan ◽

X. C. Kan ◽

Lin Zu ◽

...

Keyword(s):

Solid Solution ◽

Pechini Method ◽

Ferroelectric Properties ◽

Lead Free ◽

Multiferroic Properties ◽

Modified Pechini Method

We have successfully prepared a binary lead-free solid-solution of Bi0.5K0.5TiO3–BiFe1−xCoxO3 using a modified Pechini method and investigated the magnetic and ferroelectric properties of Bi0.5K0.5TiO3–BiFe1−xCoxO3 (0 ≤ x ≤ 0.2).

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