Uniformly sized Pt nanoparticles dispersed at high loading on Titania nanotubes

C. Encarnación-Gómez; M. A. Cortés-Jácome; A. K. Medina-Mendoza; C. Angeles Chávez; M. G. Hernández-Cruz; I. Cuauhtémoc López; J. G. Hernández-Cortéz; E. López Salinas; J. R.Vargas García; J. A. Toledo-Antonio

doi:10.1016/j.apcata.2020.117631

Uniformly sized Pt nanoparticles dispersed at high loading on Titania nanotubes

C. Encarnación-Gómez, M. A. Cortés-Jácome, A. K. Medina-Mendoza, C. Angeles Chávez, M. G. Hernández-Cruz, I. Cuauhtémoc López, J. G. Hernández-Cortéz, E. López Salinas, J. R.Vargas García, J. A. Toledo-Antonio

Escuela Superior de Ingeniería Química e Industrias Extractivas (ESIQIE)

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

19 Scopus citations

Abstract

A range of Pt loadings (0.9–21.5 wt. %) on titania nanotubes (TNT) catalysts were prepared with a view to address metal-support interaction effects on Pt nanoparticles (size, dispersion, shape) and were prepared by a vapor-phase impregnation method using Pt(acac). The reduced catalysts were characterized by XRD, TEM, H₂-TPD, CO adsorption FTIR and examined as catalysts in naphthalene hydrogenation. Pt nanoparticles have a very uniform size between 1.4–2.2 nm for Pt loadings 0.9–21.5 wt% as indicated by TEM, H₂-TPD and CO-adsorption FTIR. A strong metal-support interaction between Pt and TNT support hinder Pt nanoparticles to agglomerate into larger particles, even at high Pt loadings. Both Pt edge sites and exposed surface total Pt sites are highest at 10.2 wt.% Pt loading and parallels naphthalene hydrogenation activity which peaks at this loading.

Original language	English
Article number	117631
Journal	Applied Catalysis A: General
Volume	600
DOIs	https://doi.org/10.1016/j.apcata.2020.117631
State	Published - 25 Jun 2020

Keywords

Naphthalene hydrogenation
Pt nanoparticles
Titania nanotubes

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10.1016/j.apcata.2020.117631

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Encarnación-Gómez, C., Cortés-Jácome, M. A., Medina-Mendoza, A. K., Chávez, C. A., Hernández-Cruz, M. G., López, I. C., Hernández-Cortéz, J. G., Salinas, E. L., García, J. R. V., & Toledo-Antonio, J. A. (2020). Uniformly sized Pt nanoparticles dispersed at high loading on Titania nanotubes. Applied Catalysis A: General, 600, Article 117631. https://doi.org/10.1016/j.apcata.2020.117631

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abstract = "A range of Pt loadings (0.9–21.5 wt. %) on titania nanotubes (TNT) catalysts were prepared with a view to address metal-support interaction effects on Pt nanoparticles (size, dispersion, shape) and were prepared by a vapor-phase impregnation method using Pt(acac). The reduced catalysts were characterized by XRD, TEM, H2-TPD, CO adsorption FTIR and examined as catalysts in naphthalene hydrogenation. Pt nanoparticles have a very uniform size between 1.4–2.2 nm for Pt loadings 0.9–21.5 wt% as indicated by TEM, H2-TPD and CO-adsorption FTIR. A strong metal-support interaction between Pt and TNT support hinder Pt nanoparticles to agglomerate into larger particles, even at high Pt loadings. Both Pt edge sites and exposed surface total Pt sites are highest at 10.2 wt.% Pt loading and parallels naphthalene hydrogenation activity which peaks at this loading.",

keywords = "Naphthalene hydrogenation, Pt nanoparticles, Titania nanotubes",

author = "C. Encarnaci{\'o}n-G{\'o}mez and Cort{\'e}s-J{\'a}come, {M. A.} and Medina-Mendoza, {A. K.} and Ch{\'a}vez, {C. Angeles} and Hern{\'a}ndez-Cruz, {M. G.} and L{\'o}pez, {I. Cuauht{\'e}moc} and Hern{\'a}ndez-Cort{\'e}z, {J. G.} and Salinas, {E. L{\'o}pez} and Garc{\'i}a, {J. R.Vargas} and Toledo-Antonio, {J. A.}",

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year = "2020",

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doi = "10.1016/j.apcata.2020.117631",

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AU - Encarnación-Gómez, C.

AU - Cortés-Jácome, M. A.

AU - Medina-Mendoza, A. K.

AU - Chávez, C. Angeles

AU - Hernández-Cruz, M. G.

AU - López, I. Cuauhtémoc

AU - Hernández-Cortéz, J. G.

AU - Salinas, E. López

AU - García, J. R.Vargas

AU - Toledo-Antonio, J. A.

PY - 2020/6/25

Y1 - 2020/6/25

N2 - A range of Pt loadings (0.9–21.5 wt. %) on titania nanotubes (TNT) catalysts were prepared with a view to address metal-support interaction effects on Pt nanoparticles (size, dispersion, shape) and were prepared by a vapor-phase impregnation method using Pt(acac). The reduced catalysts were characterized by XRD, TEM, H2-TPD, CO adsorption FTIR and examined as catalysts in naphthalene hydrogenation. Pt nanoparticles have a very uniform size between 1.4–2.2 nm for Pt loadings 0.9–21.5 wt% as indicated by TEM, H2-TPD and CO-adsorption FTIR. A strong metal-support interaction between Pt and TNT support hinder Pt nanoparticles to agglomerate into larger particles, even at high Pt loadings. Both Pt edge sites and exposed surface total Pt sites are highest at 10.2 wt.% Pt loading and parallels naphthalene hydrogenation activity which peaks at this loading.

AB - A range of Pt loadings (0.9–21.5 wt. %) on titania nanotubes (TNT) catalysts were prepared with a view to address metal-support interaction effects on Pt nanoparticles (size, dispersion, shape) and were prepared by a vapor-phase impregnation method using Pt(acac). The reduced catalysts were characterized by XRD, TEM, H2-TPD, CO adsorption FTIR and examined as catalysts in naphthalene hydrogenation. Pt nanoparticles have a very uniform size between 1.4–2.2 nm for Pt loadings 0.9–21.5 wt% as indicated by TEM, H2-TPD and CO-adsorption FTIR. A strong metal-support interaction between Pt and TNT support hinder Pt nanoparticles to agglomerate into larger particles, even at high Pt loadings. Both Pt edge sites and exposed surface total Pt sites are highest at 10.2 wt.% Pt loading and parallels naphthalene hydrogenation activity which peaks at this loading.

KW - Naphthalene hydrogenation

KW - Pt nanoparticles

KW - Titania nanotubes

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DO - 10.1016/j.apcata.2020.117631

M3 - Artículo

SN - 0926-860X

VL - 600

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

M1 - 117631

ER -

Uniformly sized Pt nanoparticles dispersed at high loading on Titania nanotubes

Abstract

Keywords

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