Novel ni/ce(ti)zro2catalysts for methane dry reforming prepared in supercritical alcohol media

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Novel ni/ce(ti)zro₂catalysts for methane dry reforming prepared in supercritical alcohol media. / Bespalko, Yuliya; Smal, Ekaterina ; Simonov, Mikhail et al.

In: Energies, Vol. 13, No. 13, 3365, 01.07.2020.

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

BibTeX

@article{cf966700e16a4892a3c2a42721467239,

title = "Novel ni/ce(ti)zro2catalysts for methane dry reforming prepared in supercritical alcohol media",

abstract = "To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria-zirconia doped by Ti were investigated as supports. Ceria-zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600-750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2-δ composition due to optimized oxide support structure and support oxygen mobility. ",

keywords = "Biogas, Ceria-zirconia, Dry reforming of methane, Supercritical synthesis, SYNTHESIS GAS, supercritical synthesis, biogas, SOLID-SOLUTIONS, CO2, CARBON FORMATION, X-RAY-DIFFRACTION, NI-BASED CATALYSTS, dry reforming of methane, ceria-zirconia, CERIA, CONTINUOUS HYDROTHERMAL SYNTHESIS, DOPED CEO2, OXYGEN STORAGE CAPACITY",

author = "Yuliya Bespalko and Ekaterina Smal and Mikhail Simonov and Konstantin Valeev and Valeria Fedorova and Tamara Krieger and Svetlana Cherepanova and Arcady Ishchenko and Vladimir Rogov and Vladislav Sadykov",

year = "2020",

month = jul,

day = "1",

doi = "10.3390/en13133365",

language = "English",

volume = "13",

journal = "Energies",

issn = "1996-1073",

publisher = "MDPI AG",

number = "13",

}

RIS

TY - JOUR

T1 - Novel ni/ce(ti)zro2catalysts for methane dry reforming prepared in supercritical alcohol media

AU - Bespalko, Yuliya

AU - Smal, Ekaterina

AU - Simonov, Mikhail

AU - Valeev, Konstantin

AU - Fedorova, Valeria

AU - Krieger, Tamara

AU - Cherepanova, Svetlana

AU - Ishchenko, Arcady

AU - Rogov, Vladimir

AU - Sadykov, Vladislav

PY - 2020/7/1

Y1 - 2020/7/1

N2 - To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria-zirconia doped by Ti were investigated as supports. Ceria-zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600-750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2-δ composition due to optimized oxide support structure and support oxygen mobility.

AB - To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria-zirconia doped by Ti were investigated as supports. Ceria-zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600-750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2-δ composition due to optimized oxide support structure and support oxygen mobility.

KW - Biogas

KW - Ceria-zirconia

KW - Dry reforming of methane

KW - Supercritical synthesis

KW - SYNTHESIS GAS

KW - supercritical synthesis

KW - biogas

KW - SOLID-SOLUTIONS

KW - CO2

KW - CARBON FORMATION

KW - X-RAY-DIFFRACTION

KW - NI-BASED CATALYSTS

KW - dry reforming of methane

KW - ceria-zirconia

KW - CERIA

KW - CONTINUOUS HYDROTHERMAL SYNTHESIS

KW - DOPED CEO2

KW - OXYGEN STORAGE CAPACITY

UR - http://www.scopus.com/inward/record.url?scp=85089890595&partnerID=8YFLogxK

U2 - 10.3390/en13133365

DO - 10.3390/en13133365

M3 - Article

AN - SCOPUS:85089890595

VL - 13

JO - Energies

JF - Energies

SN - 1996-1073

IS - 13

M1 - 3365

ER -

ID: 25096742