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31.
I. S. Bredikhin F. S. Napol’skii E. V. Korovkin S. Ya. Istomin E. V. Antipov S. I. Bredikhin 《Russian Journal of Electrochemistry》2009,45(4):434-438
Using the citrate sol-gel method, a new complex oxide Ca0.75Y0.25Co0.15Mn0.85O2.92 is synthesized. It is shown that this compound is crystallized in the rhombically distorted version of perovskite structure (a = 0.53397(8), b = 0.7470(1), c = 0.52810(6) nm). The phase is characterized by a low coefficient of thermal expansion (CTE) (13.8 ppm K?1) and high electric conductivity (135 S/cm at 900°C). The chemical reaction between Ca0.75Y0.25Co0.15Mn0.85O2.92 and the YSZ and GDC electrolyte materials is studied. The material is highly reactive and reacts with YSZ and GDC at 900°C and 1070°C, respectively. It is concluded that Ca0.75Y0.25Co0.15Mn0.85O2.92 is a promising cathodic material for solid oxide fuel cells, provided a reliable protection SDC sublayer is formed between the cathode and the YSZ membrane. 相似文献
32.
Microstructural and chemical changes in a NiO-YSZ electrocatalytic electrode were studied. The microstructural changes in the NiO-YSZ electrocatalytic electrode after the cell operation was compared with the electrode quenched under the applied voltage to suppress the oxidation process. The reversible reduction of NiO into Ni and the formation of intergranular Ni layers at the NiO/YSZ interface were investigated. It was shown that in a compositional range of the NiO-YSZ electrodes from 1/3 to 2/3 the value of the ambipolar conductivity increased with increasing voltage applied to the electrochemical cell. The observed reversible increase in the value of ambipolar conductivity of the electrocatalytic electrode is described in frames of the model of reversible reduction of NiO into Ni under the conditions of cell operation. 相似文献
33.
Bredikhina Z. A. Kurenkov A. V. Bredikhin A. A. 《Russian Journal of Organic Chemistry》2019,55(6):837-844
Russian Journal of Organic Chemistry - Six regioisomeric nonracemic dimethylphenyl glycerol ethers were synthesized by asymmetric dihydroxylation of the corresponding allyl dimethylphenyl ethers.... 相似文献
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This paper reports the effect of the sensitive layer thickness on the response of Nasicon based electrochemical CO2 sensors. It was found that: (a) the cell voltage dependence on the thickness of the thin film Na2CO3 auxiliary electrode is well described within the theory of Schottky barriers formation in ionic crystals; and (b) sensors with relatively thick gas-sensitive layer are more reliable in dry CO2 atmosphere. 相似文献
37.
Vitali Sinitsyn Koichi Hamamoto Yoshinobo Fujishiro Sergei Bredikhin Masanobu Awano 《Ionics》2006,12(3):211-213
A new multilayered electrochemical cell for NOx decomposition was prepared. The cell demonstrated good characteristics at moderate temperatures (350–450 °C) and possessed much higher selectivity with respect to NOx decomposition than previous one. It was found that the “crossover” process from high selective regime to the normal regime depends on the chemical composition of the catalytic electrode. 相似文献
38.
A. A. Bredikhin P. P. Chernov V. V. Klochkov A. N. Vereshchagin 《Russian Chemical Bulletin》1988,37(7):1371-1373
Conclusions The shift of the position of the conformational equilibria in series of formic acid derivatives is determined primarily by steric factors.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1552–1555, July, 1988. 相似文献
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