Sol-gel synthesis and investigation of catalysts on the basis of perovskite-type oxides GdMO3 (M= Fe, Co)

Standard

Sol-gel synthesis and investigation of catalysts on the basis of perovskite-type oxides GdMO3 (M= Fe, Co). / Yafarova, L. V.; Chislova, I. V.; Zvereva, I. A.; Kryuchkova, T. A.; Kost, V. V.; Sheshko, T. F.

In: Journal of Sol-Gel Science and Technology, Vol. 92, No. 2, 01.11.2019, p. 264-272.

Research output: Contribution to journal › Article › peer-review

Author

Yafarova, L. V. ; Chislova, I. V. ; Zvereva, I. A. ; Kryuchkova, T. A. ; Kost, V. V. ; Sheshko, T. F. / Sol-gel synthesis and investigation of catalysts on the basis of perovskite-type oxides GdMO3 (M= Fe, Co). In: Journal of Sol-Gel Science and Technology. 2019 ; Vol. 92, No. 2. pp. 264-272.

BibTeX

@article{c2820c0e86834ae9b5a450d44335380b,

title = "Sol-gel synthesis and investigation of catalysts on the basis of perovskite-type oxides GdMO3 (M= Fe, Co)",

abstract = "The perovskite-type oxides GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) synthesized by the sol–gel method were tested as catalysts in the dry reforming of methane to syngas between 500 and 950 °С at atmospheric pressure. Thermal analysis (TG and DSC coupled with MS) and phase analysis (X-ray diffraction) were used for the synthesis parameters control. The morphology and surface area were determined by BET and SEM methods. The highly crystalline, homogeneous and pure solids with well-defined structures were prepared. The mixed GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) structure belongs to an orthorhombic crystal system with a space group of Pnma (62). The partial substitution of Fe by Co leads to the increase of the catalytic activity. in the row: GdFeO3 < GdFe0.5Co0.5O3 < GdCoO3 ⩽ GdFe0.8Co0.2O3 ≈ GdFe0.2Co0.8O3. An additional point is that the presence of Co in B-site suppresses secondary reactions such as reverse water gas-shift without slowing the dry reforming reaction, which produces syngas in a ratio close to 1. [Figure not available: see fulltext.]",

keywords = "перовскит, Катализатор, Конверсия природного газа",

author = "Yafarova, {L. V.} and Chislova, {I. V.} and Zvereva, {I. A.} and Kryuchkova, {T. A.} and Kost, {V. V.} and Sheshko, {T. F.}",

note = "Funding Information: This work was financially supported by the Russian Foundation for Basic Research (Projects No. 18-33-01209 and No. 17-03-00647). The publication has been prepared with the support of the ?RUDN University Program 5-100?. Research was performed at the Center for Thermogravimetric and Calorimetric Research, Interdisciplinary Center for Nanotechnology and Research Centre for X-ray Diffraction Studies of Research Park of St. Petersburg State University. Publisher Copyright: {\textcopyright} 2019, Springer Science+Business Media, LLC, part of Springer Nature. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

year = "2019",

month = nov,

day = "1",

doi = "10.1007/s10971-019-05013-3",

language = "English",

volume = "92",

pages = "264--272",

journal = "Journal of Sol-Gel Science and Technology",

issn = "0928-0707",

publisher = "Springer Nature",

number = "2",

}

RIS

TY - JOUR

T1 - Sol-gel synthesis and investigation of catalysts on the basis of perovskite-type oxides GdMO3 (M= Fe, Co)

AU - Yafarova, L. V.

AU - Chislova, I. V.

AU - Zvereva, I. A.

AU - Kryuchkova, T. A.

AU - Kost, V. V.

AU - Sheshko, T. F.

N1 - Funding Information: This work was financially supported by the Russian Foundation for Basic Research (Projects No. 18-33-01209 and No. 17-03-00647). The publication has been prepared with the support of the ?RUDN University Program 5-100?. Research was performed at the Center for Thermogravimetric and Calorimetric Research, Interdisciplinary Center for Nanotechnology and Research Centre for X-ray Diffraction Studies of Research Park of St. Petersburg State University. Publisher Copyright: © 2019, Springer Science+Business Media, LLC, part of Springer Nature. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The perovskite-type oxides GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) synthesized by the sol–gel method were tested as catalysts in the dry reforming of methane to syngas between 500 and 950 °С at atmospheric pressure. Thermal analysis (TG and DSC coupled with MS) and phase analysis (X-ray diffraction) were used for the synthesis parameters control. The morphology and surface area were determined by BET and SEM methods. The highly crystalline, homogeneous and pure solids with well-defined structures were prepared. The mixed GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) structure belongs to an orthorhombic crystal system with a space group of Pnma (62). The partial substitution of Fe by Co leads to the increase of the catalytic activity. in the row: GdFeO3 < GdFe0.5Co0.5O3 < GdCoO3 ⩽ GdFe0.8Co0.2O3 ≈ GdFe0.2Co0.8O3. An additional point is that the presence of Co in B-site suppresses secondary reactions such as reverse water gas-shift without slowing the dry reforming reaction, which produces syngas in a ratio close to 1. [Figure not available: see fulltext.]

AB - The perovskite-type oxides GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) synthesized by the sol–gel method were tested as catalysts in the dry reforming of methane to syngas between 500 and 950 °С at atmospheric pressure. Thermal analysis (TG and DSC coupled with MS) and phase analysis (X-ray diffraction) were used for the synthesis parameters control. The morphology and surface area were determined by BET and SEM methods. The highly crystalline, homogeneous and pure solids with well-defined structures were prepared. The mixed GdCoxFe1−xO3 (x = 0; 0.2; 0.5; 0.8; 1) structure belongs to an orthorhombic crystal system with a space group of Pnma (62). The partial substitution of Fe by Co leads to the increase of the catalytic activity. in the row: GdFeO3 < GdFe0.5Co0.5O3 < GdCoO3 ⩽ GdFe0.8Co0.2O3 ≈ GdFe0.2Co0.8O3. An additional point is that the presence of Co in B-site suppresses secondary reactions such as reverse water gas-shift without slowing the dry reforming reaction, which produces syngas in a ratio close to 1. [Figure not available: see fulltext.]

KW - перовскит

KW - Катализатор

KW - Конверсия природного газа

UR - http://www.scopus.com/inward/record.url?scp=85065739277&partnerID=8YFLogxK

UR - https://www.proquest.com/openview/6c14fb2cd466ca9728a0e78ba539f1dd/1.pdf?pq-origsite=gscholar&cbl=2043844

U2 - 10.1007/s10971-019-05013-3

DO - 10.1007/s10971-019-05013-3

M3 - Article

AN - SCOPUS:85065739277

VL - 92

SP - 264

EP - 272

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

SN - 0928-0707

IS - 2

ER -

ID: 38642761