Effect of preparation route on Sr2TiO4 catalyst for the oxidative coupling of methane

被引：23

作者：

Ivanova, Y. A. ^{[1
]}

Sutormina, E. F. ^{[1
]}

Rudina, N. A. ^{[1
]}

Nartova, A. V. ^{[1
,2
]}

Isupova, L. A. ^{[1
]}

机构：

[1] RAS, SB, Boreskov Inst Catalysis, Pr Lavrentieva 5, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Pirogova St 2, Novosibirsk 630090, Russia

来源：

CATALYSIS COMMUNICATIONS | 2018年 / 117卷

关键词：

Strontium titanates; Layered perovskite structure; Oxidative coupling of methane; X-RAY PHOTOELECTRON; FLAMELESS COMBUSTION; SRTIO3; NANOCUBES; SN PEROVSKITES; BA; NANOPOWDERS; STRONTIUM; BARIUM; OXIDES; SR;

D O I：

10.1016/j.catcom.2018.08.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Four different preparation routes were used to synthesize Sr2TiO4 with the structure of layered perovskite: sol-precipitation (SP), co-precipitation (CO), citrate precursor (CT) and mechanochemical (MA) methods with further calcinations at 1100 degrees C. The XDR, XPS, BET, SEM techniques showed that the different preparation routes caused the formation of layered perovskite phase with different admixture phases, particle sizes and the surface enrichment with layered perovskite (for SP and MA samples) or strontium oxide (for CO and CT samples). The trend of increasing of CH4 conversion and C-2-yield in oxidative coupling of methane at 800-900 degrees C was found to be the following: SP approximate to MA > CO > CT samples. The C-2-yield of the most active catalysts was measured to be about 12%.

引用

页码：43 / 48

页数：6

共 26 条

[1] Effect of mechanical activation on the preparation of SrTiO3 and Sr2TiO4 ceramics from the solid state system SrCO3-TiO2 [J].

Berbenni, V ;

Marini, A ;

Bruni, G .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 329 (1-2) :230-238

[2] LAYERED AND DOUBLE PEROVSKITES AS METHANE COUPLING CATALYSTS [J].

CAMPBELL, KD .

CATALYSIS TODAY, 1992, 13 (2-3) :245-253

[3] An improved method for preparation of SrTiO3 nanoparticles [J].

da Silva, L. F. ;

Maia, L. J. Q. ;

Bernardi, M. I. B. ;

Andres, J. A. ;

Mastelaro, V. R. .

MATERIALS CHEMISTRY AND PHYSICS, 2011, 125 (1-2) :168-173

[4] CATALYTIC PARTIAL OXIDATION OF METHANE OVER BA-PB, BA-BI, AND BA-SN PEROVSKITES [J].

DISSANAYAKE, D ;

KHARAS, KCC ;

LUNSFORD, JH ;

ROSYNEK, MP .

JOURNAL OF CATALYSIS, 1993, 139 (02) :652-663

[5] Sr1-xAgxTiO3 ±δ (x=0, 0.1) perovskite-structured catalysts for the flameless combustion of methane [J].

Fabbrini, L ;

Kryukov, A ;

Cappelli, S ;

Chiarello, GL ;

Rossetti, I ;

Oliva, C ;

Forni, L .

JOURNAL OF CATALYSIS, 2005, 232 (02) :247-256

[6] Oxidative coupling of methane catalyzed by Li, Na and Mg doped BaSrTiO3 [J].

Fakhroueian, Z. ;

Farzaneh, F. ;

Afrookhteh, N. .

FUEL, 2008, 87 (12) :2512-2516

[7] Revisiting the oxidative coupling of methane to ethylene in the golden period of shale gas: A review [J].

Galadima, Ahmad ;

Muraza, Oki .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2016, 37 :1-13

[8] OXIDATIVE COUPLING OF METHANE OVER AMORPHOUS LANTHANUM ALUMINUM-OXIDES [J].

IMAI, H ;

TAGAWA, T ;

KAMIDE, N .

JOURNAL OF CATALYSIS, 1987, 106 (02) :394-400

[9] Oxidative methane coupling over Mg, Al, Ca, Ba, Pb-promoted SrTiO3 and Sr2TiO4: Influence of surface composition and microstructure [J].

Ivanov, D. V. ;

Isupova, L. A. ;

Gerasimov, E. Yu ;

Dovlitova, L. S. ;

Glazneva, T. S. ;

Prosvirin, I. P. .

APPLIED CATALYSIS A-GENERAL, 2014, 485 :10-19

[10] Effects of various barium precursors and promoters on catalytic activity of Ba-Ti perovskite catalysts for oxidative coupling of methane [J].

Khodadadian, Maryam ;

Taghizadeh, Majid ;

Hamidzadeh, Marzieh .

FUEL PROCESSING TECHNOLOGY, 2011, 92 (06) :1164-1168

← 1 2 3 →