Possibilities and Limitations in the Growth of Mixed Metal Oxide Particles from Aqueous Media

1996 ◽  
pp. 33-45 ◽  
Author(s):  
Miguel A. Blesa ◽  
Galo J. A.A. Soler-Illia ◽  
Roberto J. Candal ◽  
Alberto E. Regazzoni
Keyword(s):  
Metal Oxide ◽  
Aqueous Media ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Oxide Particles

scholarly journals Partial flocculation for spray drying of spherical mixed metal oxide particles

2018 ◽  
Vol 101 (10) ◽  
pp. 4452-4457 ◽  
Author(s):  
Brian D. Ehrhart ◽  
Barbara J. Ward ◽  
Benjamin M. Richardson ◽  
Kristi S. Anseth ◽  
Alan W. Weimer
Keyword(s):  
Metal Oxide ◽  
Spray Drying ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Oxide Particles

Aerosol Routes to Perovskite Phase Mixed Metal Oxides

1993 ◽  
Vol 310 ◽  
Author(s):  
C.D. Chandler ◽  
Q. Powell ◽  
M.J. Hampden-Smith ◽  
T.T. Kodas
Keyword(s):  
Metal Oxide ◽  
Low Temperatures ◽  
Perovskite Phase ◽  
Mixed Metal Oxide ◽  
Single Source ◽  
Single Source Precursors ◽  
Mixed Metal ◽  
Oxide Powders ◽  
Metal Organic ◽  
Oxide Particles

AbstractSub-micron sized metal oxide particles were formed via aerosol decomposition using single-source mixed metal-organic precursors specifically designed to decompose at low temperatures. The advantage of these single-source precursors over mixtures of individual precursors is that each particle contains a fixed stoichiometry and molecular level homogeneity. Furthermore, the loss of volatile intermediates (such as PbO) may be avoided. Aerosol processing routes can produce uniform sub-micron sized powder that can be sintered at low temperatures for various thin film and membrane applications. The single-source precursors were prepared in pyridine by reaction of divalent metal α-hydroxycarboxylates of general empirical formula A(O2CCMe2OH)2 (where A = Pb, Ca, Sr, Ba; Me = methyl) with metal alkoxides (for example, Ti(O-i-Pr)4) with the elimination of two equivalents of alcohol. These species were then hydrolyzed in solution and yellow powders were isolated by removal of the pyridine solvent in vacuo. These powders were dissolved in water and used to prepare mixed metal oxide powders via spray pyrolysis. Phase-pure submicron-sized particles of PbTiO3 and BaTiO3 were produced at temperatures of 600-900 °C. The particles were hollow, ranged in size from 0.1 to 1 μm and consisted of 30-50 nm crystallites.

Coordination Polymers Derived General Synthesis of Multishelled Mixed Metal-Oxide Particles for Hybrid Supercapacitors

2017 ◽  
Vol 29 (17) ◽  
pp. 1605902 ◽  
Author(s):  
Bu Yuan Guan ◽  
Akihiro Kushima ◽  
Le Yu ◽  
Sa Li ◽  
Ju Li ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Coordination Polymers ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Hybrid Supercapacitors ◽  
Oxide Particles ◽  
General Synthesis

Bimetallic Mixed Metal Oxide (CuO/NiO) In Fusion with Nitrogen-doped Graphene Oxide: An Alternate Approach for Developing Potential Biocarrier

2021 ◽  
pp. 105781
Author(s):  
Periasamy Anbu ◽  
Subash C.B. Gopinath ◽  
Kandasamy Saravanakumar ◽  
Sekar Vijayakumar ◽  
Santheraleka Ramanathan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Metal Oxide ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Rare earth—platinum group mixed metal oxide systems

1994 ◽  
Vol 210 (1-2) ◽  
pp. 177-184 ◽  
Author(s):  
K.M. Cruickshank ◽  
F.P. Glasser
Keyword(s):  
Rare Earth ◽  
Metal Oxide ◽  
Mixed Metal Oxide ◽  
Oxide Systems ◽  
Mixed Metal ◽  
Platinum Group

scholarly journals Y3+ and Sm3+ co-doped mixed metal oxide nanocomposite: Structural, electrochemical, photocatalytic, and antibacterial properties

2021 ◽  
Vol 4 ◽  
pp. 100085 ◽  
Author(s):  
Karthik Kannan ◽  
D Radhika ◽  
D. Gnanasangeetha ◽  
L. Sivarama Krishna ◽  
K Gurushankar
Keyword(s):  
Metal Oxide ◽  
Antibacterial Properties ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Co Doped

scholarly journals Selective Catalytic Oxidation of Toluene to Benzaldehyde: Effect of Aging Time and Calcination Temperature Using CuxZnyO Mixed Metal Oxide Nanoparticles

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 354
Author(s):  
Khadijah H. Alharbi ◽  
Ali Alsalme ◽  
Ahmed Bader A. Aloumi ◽  
Mohammed Rafiq H. Siddiqui
Keyword(s):  
Metal Oxide ◽  
Calcination Temperature ◽  
Aging Time ◽  
Metal Oxide Nanoparticles ◽  
Catalytic Performance ◽  
Molar Ratio ◽  
Mixed Metal Oxide ◽  
Toluene Oxidation ◽  
Mixed Metal ◽  
Selective Catalytic Oxidation

Oxidation is an important organic transformation, and several catalysts have been reported for this conversion. In this study, we report the synthesis of mixed metal oxide CuxZnyO, which is prepared by a coprecipitation method by varying the molar ratio of Cu and Zn in the catalytic system. The prepared mixed metal oxide CuxZnyO was evaluated for catalytic performance for toluene oxidation. Various parameters of the catalytic evaluation were studied in order to ascertain the optimum condition for the best catalytic performance. The results indicate that aging time, calcination temperature, reaction temperature, and feed rate influence catalytic performance. It was found that the catalyst interfaces apparently enhanced catalytic activity for toluene oxidation. The XRD diffractograms reveal the crystalline nature of the mixed metal oxide formed and also confirm the coexistence of hexagonal and monoclinic crystalline phases. The catalyst prepared by aging for 4 h and calcined at 450 °C was found to be the best for the conversion of toluene to benzaldehyde while the reactor temperature was maintained at 250 °C with toluene fed into the reactor at 0.01 mL/min. The catalyst was active for about 13 h.

Doped-TiO2 and doped-mixed metal oxide-based nanocomposite for photocatalysis

2021 ◽  
pp. 155-180
Author(s):  
Akash P. Bhat ◽  
Ananda J. Jadhav ◽  
Chandrakant R. Holkar ◽  
Dipak V. Pinjari
Keyword(s):  
Metal Oxide ◽  
Mixed Metal Oxide ◽  
Doped Tio2 ◽  
Mixed Metal
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