Abstract
The production of La(Sr)MnO{sub 3} and La(Sr)CrO{sub 3} powders for solid oxide fuel cells is described. The results of a study of relevant literature on the production of alkoxides from the metals La, Sr, Mn and Cr and the hydrolysis of these alkoxides, and further on nitrate-based methods, are presented. Synthesis of a number of alkoxide compounds was carried out and a preliminary experiment with hydrolysis of mixtures of these alkoxides was conducted. A nitrate-based production method produced the required chemical composition of the components and a particle size of under 1 {mu}m was found, but the products were not homogeneous to the components. In connection with the characterization of the powders produced, a pronounced relation was found between the specific inner surface area of the particles and the calcination temperature, in that the surface area falls with a rising calcination temperature in the temperature interval 400-1200 degrees centigrade. No relation was found between particle size and calcination temperature. (AB).
Citation Formats
Hye, K, and Nissen, B.
Production and characterization of La(Sr)MnO{sub 3} and La(SR)CrO{sub 3} powders for high-temperature fuel cells based on oxygen ions; Fremstilling og karakterisering af La(Sr)MnO{sub 3} og La(Sr)CrO{sub 3} pulvere til hoejtemperaturbraendselsceller baseret paa iltioner. Bind 1 og 2.
Denmark: N. p.,
1991.
Web.
Hye, K, & Nissen, B.
Production and characterization of La(Sr)MnO{sub 3} and La(SR)CrO{sub 3} powders for high-temperature fuel cells based on oxygen ions; Fremstilling og karakterisering af La(Sr)MnO{sub 3} og La(Sr)CrO{sub 3} pulvere til hoejtemperaturbraendselsceller baseret paa iltioner. Bind 1 og 2.
Denmark.
Hye, K, and Nissen, B.
1991.
"Production and characterization of La(Sr)MnO{sub 3} and La(SR)CrO{sub 3} powders for high-temperature fuel cells based on oxygen ions; Fremstilling og karakterisering af La(Sr)MnO{sub 3} og La(Sr)CrO{sub 3} pulvere til hoejtemperaturbraendselsceller baseret paa iltioner. Bind 1 og 2."
Denmark.
@misc{etde_10121270,
title = {Production and characterization of La(Sr)MnO{sub 3} and La(SR)CrO{sub 3} powders for high-temperature fuel cells based on oxygen ions; Fremstilling og karakterisering af La(Sr)MnO{sub 3} og La(Sr)CrO{sub 3} pulvere til hoejtemperaturbraendselsceller baseret paa iltioner. Bind 1 og 2}
author = {Hye, K, and Nissen, B}
abstractNote = {The production of La(Sr)MnO{sub 3} and La(Sr)CrO{sub 3} powders for solid oxide fuel cells is described. The results of a study of relevant literature on the production of alkoxides from the metals La, Sr, Mn and Cr and the hydrolysis of these alkoxides, and further on nitrate-based methods, are presented. Synthesis of a number of alkoxide compounds was carried out and a preliminary experiment with hydrolysis of mixtures of these alkoxides was conducted. A nitrate-based production method produced the required chemical composition of the components and a particle size of under 1 {mu}m was found, but the products were not homogeneous to the components. In connection with the characterization of the powders produced, a pronounced relation was found between the specific inner surface area of the particles and the calcination temperature, in that the surface area falls with a rising calcination temperature in the temperature interval 400-1200 degrees centigrade. No relation was found between particle size and calcination temperature. (AB).}
place = {Denmark}
year = {1991}
month = {Jan}
}
title = {Production and characterization of La(Sr)MnO{sub 3} and La(SR)CrO{sub 3} powders for high-temperature fuel cells based on oxygen ions; Fremstilling og karakterisering af La(Sr)MnO{sub 3} og La(Sr)CrO{sub 3} pulvere til hoejtemperaturbraendselsceller baseret paa iltioner. Bind 1 og 2}
author = {Hye, K, and Nissen, B}
abstractNote = {The production of La(Sr)MnO{sub 3} and La(Sr)CrO{sub 3} powders for solid oxide fuel cells is described. The results of a study of relevant literature on the production of alkoxides from the metals La, Sr, Mn and Cr and the hydrolysis of these alkoxides, and further on nitrate-based methods, are presented. Synthesis of a number of alkoxide compounds was carried out and a preliminary experiment with hydrolysis of mixtures of these alkoxides was conducted. A nitrate-based production method produced the required chemical composition of the components and a particle size of under 1 {mu}m was found, but the products were not homogeneous to the components. In connection with the characterization of the powders produced, a pronounced relation was found between the specific inner surface area of the particles and the calcination temperature, in that the surface area falls with a rising calcination temperature in the temperature interval 400-1200 degrees centigrade. No relation was found between particle size and calcination temperature. (AB).}
place = {Denmark}
year = {1991}
month = {Jan}
}