Gold nanoparticles supported on ceria-modified mesoporous-macroporous binary metal oxides as highly active catalysts for low-temperature water-gas shift reaction

V. Idakiev, T. Tabakova, K. Tenchev, Z.Y. Yuan, T.Z. Ren, A. Vantomme, B.L. Su

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

New gold catalytic system prepared on ceria-modified meso-/macroporous binary metal oxide support (CeO/TiO-ZrO) and used as water-gas shift reaction (WGSR) catalyst is reported. The support was prepared through the surfactant templating technique combining with the use of mixed alkoxide solutions. Ceria-modifying additive and gold were deposited consecutively on the meso-/macroporous TiO-ZrO by deposition-precipitation method. The samples were characterized by powder X-ray diffraction, scanning and transmission electron microscopy, N adsorption analysis, and temperature-programmed reduction. The catalytic activity of the new gold-based catalysts was evaluated in WGSR and it was compared with that of gold catalysts supported on simple and binary mesoporous oxides (TiO, ZrO, and TiO-ZrO) and ceria-modified mesoporous titania support (CeO/mTiO ). A high degree of synergistic interaction between ceria and support and a positive modification of structural and catalytic properties have been achieved. The new gold catalytic system is found to be a promising catalyst for practical WGSR application.
langue originaleAnglais
Pages (de - à)6637-6643
Nombre de pages7
journalJournal of Materials Science
Volume44
Numéro de publication24
Les DOIs
étatPublié - 1 janv. 2009

Empreinte digitale

Water gas shift
Cerium compounds
Gold
Oxides
Metals
Nanoparticles
Catalysts
Catalyst supports
Temperature
Surface-Active Agents
X ray powder diffraction
Catalyst activity
Surface active agents
Titanium
Transmission electron microscopy
Adsorption
Scanning electron microscopy

Citer ceci

@article{b898e96a93eb4129abc9643d1092a55f,
title = "Gold nanoparticles supported on ceria-modified mesoporous-macroporous binary metal oxides as highly active catalysts for low-temperature water-gas shift reaction",
abstract = "New gold catalytic system prepared on ceria-modified meso-/macroporous binary metal oxide support (CeO/TiO-ZrO) and used as water-gas shift reaction (WGSR) catalyst is reported. The support was prepared through the surfactant templating technique combining with the use of mixed alkoxide solutions. Ceria-modifying additive and gold were deposited consecutively on the meso-/macroporous TiO-ZrO by deposition-precipitation method. The samples were characterized by powder X-ray diffraction, scanning and transmission electron microscopy, N adsorption analysis, and temperature-programmed reduction. The catalytic activity of the new gold-based catalysts was evaluated in WGSR and it was compared with that of gold catalysts supported on simple and binary mesoporous oxides (TiO, ZrO, and TiO-ZrO) and ceria-modified mesoporous titania support (CeO/mTiO ). A high degree of synergistic interaction between ceria and support and a positive modification of structural and catalytic properties have been achieved. The new gold catalytic system is found to be a promising catalyst for practical WGSR application.",
author = "V. Idakiev and T. Tabakova and K. Tenchev and Z.Y. Yuan and T.Z. Ren and A. Vantomme and B.L. Su",
year = "2009",
month = "1",
day = "1",
doi = "10.1007/s10853-009-3574-9",
language = "English",
volume = "44",
pages = "6637--6643",
journal = "Journal of Materials Science",
issn = "0022-2461",
publisher = "Springer Netherlands",
number = "24",

}

Gold nanoparticles supported on ceria-modified mesoporous-macroporous binary metal oxides as highly active catalysts for low-temperature water-gas shift reaction. / Idakiev, V.; Tabakova, T.; Tenchev, K.; Yuan, Z.Y.; Ren, T.Z.; Vantomme, A.; Su, B.L.

Dans: Journal of Materials Science, Vol 44, Numéro 24, 01.01.2009, p. 6637-6643.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Gold nanoparticles supported on ceria-modified mesoporous-macroporous binary metal oxides as highly active catalysts for low-temperature water-gas shift reaction

AU - Idakiev, V.

AU - Tabakova, T.

AU - Tenchev, K.

AU - Yuan, Z.Y.

AU - Ren, T.Z.

AU - Vantomme, A.

AU - Su, B.L.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - New gold catalytic system prepared on ceria-modified meso-/macroporous binary metal oxide support (CeO/TiO-ZrO) and used as water-gas shift reaction (WGSR) catalyst is reported. The support was prepared through the surfactant templating technique combining with the use of mixed alkoxide solutions. Ceria-modifying additive and gold were deposited consecutively on the meso-/macroporous TiO-ZrO by deposition-precipitation method. The samples were characterized by powder X-ray diffraction, scanning and transmission electron microscopy, N adsorption analysis, and temperature-programmed reduction. The catalytic activity of the new gold-based catalysts was evaluated in WGSR and it was compared with that of gold catalysts supported on simple and binary mesoporous oxides (TiO, ZrO, and TiO-ZrO) and ceria-modified mesoporous titania support (CeO/mTiO ). A high degree of synergistic interaction between ceria and support and a positive modification of structural and catalytic properties have been achieved. The new gold catalytic system is found to be a promising catalyst for practical WGSR application.

AB - New gold catalytic system prepared on ceria-modified meso-/macroporous binary metal oxide support (CeO/TiO-ZrO) and used as water-gas shift reaction (WGSR) catalyst is reported. The support was prepared through the surfactant templating technique combining with the use of mixed alkoxide solutions. Ceria-modifying additive and gold were deposited consecutively on the meso-/macroporous TiO-ZrO by deposition-precipitation method. The samples were characterized by powder X-ray diffraction, scanning and transmission electron microscopy, N adsorption analysis, and temperature-programmed reduction. The catalytic activity of the new gold-based catalysts was evaluated in WGSR and it was compared with that of gold catalysts supported on simple and binary mesoporous oxides (TiO, ZrO, and TiO-ZrO) and ceria-modified mesoporous titania support (CeO/mTiO ). A high degree of synergistic interaction between ceria and support and a positive modification of structural and catalytic properties have been achieved. The new gold catalytic system is found to be a promising catalyst for practical WGSR application.

UR - http://www.scopus.com/inward/record.url?scp=72049132082&partnerID=8YFLogxK

U2 - 10.1007/s10853-009-3574-9

DO - 10.1007/s10853-009-3574-9

M3 - Article

AN - SCOPUS:72049132082

VL - 44

SP - 6637

EP - 6643

JO - Journal of Materials Science

JF - Journal of Materials Science

SN - 0022-2461

IS - 24

ER -