No abstract available
Source
Zakhodyaeva, Yu.A.; Belova, V.V. (eds.); Mezhdunarodnaya Assotsiatsiya Akademij Nauk, Kiev (Ukraine); Rossijskaya Akademiya Nauk, Otdelenie Khimii i Nauk o Materialakh, Moscow (Russian Federation); Rossijskij Fond Fundamental'nykh Issledovanij, Moscow (Russian Federation); Nauchnyj Sovet RAN po Khimicheskoj Tekhnologii, Moscow (Russian Federation); Ministerstvo Obrazovaniya i Nauki RF, Moscow (Russian Federation); Inst. Obshchej i Neorganicheskoj Khimii im. N.S. Kurnakova RAN, Moscow (Russian Federation); Inst. Khimicheskoj Fiziki im. N.N. Semenova RAN, Moscow (Russian Federation); Rossijskij Khimiko-Tekhnologicheskij Univ. im. D.I. Mendeleeva, Moscow (Russian Federation); Tashkentskij Khimiko-Tekhnologicheskij Inst., Tashkent (Uzbekistan); 356 p; ISBN 978-5-906097-04-0; 
; 2012; p. 239-240; 4. All-Russian Conference on chemical engineering, All-Russian Youth Conference on chemical engineering, All-Russian school on chemical engineering for young scientists and specialists; Khimicheskaya Tekhnologiya: IV Vserossijskaya konferentsiya po khimicheskoj tekhnologii, Vserossijskaya molodezhnaya konferentsiya po khimicheskoj tekhnologii, Vserossijskaya shkola po khimicheskoj tekhnologii dlya molodykh uchenykh i spetsialistov; Moscow (Russian Federation); 18-23 Mar 2012; 1 ref.
; 2012; p. 239-240; 4. All-Russian Conference on chemical engineering, All-Russian Youth Conference on chemical engineering, All-Russian school on chemical engineering for young scientists and specialists; Khimicheskaya Tekhnologiya: IV Vserossijskaya konferentsiya po khimicheskoj tekhnologii, Vserossijskaya molodezhnaya konferentsiya po khimicheskoj tekhnologii, Vserossijskaya shkola po khimicheskoj tekhnologii dlya molodykh uchenykh i spetsialistov; Moscow (Russian Federation); 18-23 Mar 2012; 1 ref.
No abstract available
Source
Federal'noe Gosudarstvennoe Avtonomnoe Obrazovatel'noe Uchrezhdenie Vysshego Obrazovaniya «Natsional'nyj Issledovatel'skij Tomskij Politekhnicheskij Universitet», Tomsk (Russian Federation); Federal'noe Gosudarstvennoe Byudzhetnoe Uchrezhdenie Nauki Federal'nyj Issledovatel'skij Tsentr «Institut Kataliza im. G.K. Boreskova Sibirskogo Otdeleniya Rossijskoj Akademii Nauk», Novosibirsk (Russian Federation); Federal'noe Gosudarstvennoe Byudzhetnoe Uchrezhdenie Nauki Inst. Problem Khimicheskoj Fiziki Rossijskoj Akademii Nauk, Chernogolovka (Russian Federation); Federal'noe Gosudarstvennoe Byudzhetnoe Uchrezhdenie Nauki Ordena Trudovogo Krasnogo Znameni Inst. Neftekhimicheskogo Sinteza im. A.V. Topchieva Rossijskoj Akademii Nauk, Moscow (Russian Federation); Federal'noe Gosudarstvennoe Byudzhetnoe Obrazovatel'noe Uchrezhdenie Vysshego Obrazovaniya «Samarskij Gosudarstvennyj Tekhnicheskij Universitet», Samara (Russian Federation); Federal'noe Gosudarstvennoe Byudzhetnoe Obrazovatel'noe Uchrezhdenie Vysshego Obrazovaniya «Sakhalinskij Gosudarstvennyj Universitet», Yuzhno-Sakhalinsk (Russian Federation); 67 p; ISBN 978-5-4387-0979-4; ; 2021; p. 27; All-Russian scientific and practical conference «Hydrogen. Technologies. Future»; Vserossijskaya nauchno-prakticheskaya konferentsiya «Vodorod. Tekhnologii. Budushchee»; Tomsk (Russian Federation); 23-24 Dec 2020; 5 refs.
; 2021; p. 27; All-Russian scientific and practical conference «Hydrogen. Technologies. Future»; Vserossijskaya nauchno-prakticheskaya konferentsiya «Vodorod. Tekhnologii. Budushchee»; Tomsk (Russian Federation); 23-24 Dec 2020; 5 refs.
[en] Phase analysis of La1-xCaxFeO3-0.5x perovskites synthesized from oxides on ceramic method are done using the methods of x-ray analysis and differentiating dissolution. It is shown that at x<0.5 this system not forms continuous series of homogeneous solid solutions and not consists of members of homologous row. At x<0.5 system is two-phase and includes calcium ferrite nanoparticles situated on surface of lanthanum ferrite. Formation of structures of homologous row on the base of brownmillerite at x>0.5 is corroborated. Catalytic activity of perovskites depends nonmonotonously on x value and reaches maximum at x=0.6
[ru]
Методами рентгеновского анализа и дифференцирующего рфстворения выполнен фазовый анализ перовскитов La1-xCaxFeO3-0.5x, синтезированных из оксидов по керамической технологии. Показано, что при x<0.5 данная система не образует непрерывного ряда гомогенных твердых растворов и не состоит из членов гамологического ряда. При x<0.5 система является двухфазной и включает наночастицы феррита кальция, расположенные на поверхности частиц феррита лантана. Подтверждено образование при x>0.5 структур гомологического ряда на основе браунмиллерита. Каталитическая активность перовскитов немонотонно зависит от величины x и достигает максимума при x=0.6Journal
No abstract available
Source
Zubavichus, Ya.V.; Tsybulya, S.V. (eds.); Inst. Kataliza im. G.K. Boreskova SO RAN, Novosibirsk (Russian Federation); Novosibirskij Gosudarstvennyj Univ., Novosibirsk (Russian Federation); Inst. Yadernoj Fiziki im. G.I. Budkera SO RAN, Novosibirsk (Russian Federation); Novosibirskij Inst. Organicheskoj Khimii im. N.N. Vorozhtsova SO RAN, Novosibirsk (Russian Federation); Inst. Neorganicheskoj Khimii im. A.V. Nikolaeva SO RAN, Novosibirsk (Russian Federation); Nauchnyj Sovet po Katalizu, Novosibirsk (Russian Federation); 456 p; ISBN 978-5-906376-29-9; ; 2020; p. 217-218; MISSFM-2020: 3. All-Russian conference ''Methods of studying the composition and structure of functional materials''; 3-ya Vserossijskaya konferentsiya «Metody issledovaniya sostava i struktury funktsional'nykh materialov» (MISSFM-2020); Novosibirsk (Russian Federation); 1-4 Sep 2020
; 2020; p. 217-218; MISSFM-2020: 3. All-Russian conference ''Methods of studying the composition and structure of functional materials''; 3-ya Vserossijskaya konferentsiya «Metody issledovaniya sostava i struktury funktsional'nykh materialov» (MISSFM-2020); Novosibirsk (Russian Federation); 1-4 Sep 2020
[en] Highlights: • La_1_−_xCa_xFeO _(_3_−_δ_) (0 ≤ x ≤ 0.7) perovskite were prepared by Pechini method. • Planar defects in direction (1 0 1) were observed in the perovskite surface. • α-Fe_2O_3 particles (1–10 nm) on the surface of perovskite were revealed. • Amount of α-Fe_2O_3 particles on the perovskite surface grew with rising x values. - Abstract: Solid solutions with La_1_−_xCa_xFeO_3_−_δ (0 ≤ x ≤ 0.7) perovskite-like structure prepared via Pechini route have been investigated by using high resolution transmission electron microscopy and X-ray diffraction. Extended planar defects lying in (1 0 1) crystallographic planes and α-Fe_2O_3 nanoparticles on the surface of perovskite microcrystals are characteristic of the samples under investigation. It was found that testing of the samples in catalytic deep CH_4 oxidation process results in partial destruction of solid solutions with formation of planar defects in the bulk and α-Fe_2O_3 particles on the surface
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