Acetone transformation over PtSn/H[A1]ZSM5 catalysts

Ricardo Morales; Luis Melo; Joaquín Brito; Aura Llanos; Delfín Moronta; Luis Albornoz; Eloy Rodríguez

doi:10.1016/S1381-1169(03)00367-4

Acetone transformation over PtSn/H[A1]ZSM5 catalysts

Ricardo Morales
, Luis Melo
, Joaquín Brito
, Aura Llanos
, Delfín Moronta
, Luis Albornoz
, Eloy Rodríguez

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

15 Scopus citations

Abstract

A study was carried out on the reaction of acetone transformation over bifunctional monometallic (Pt/H[A1]ZSM5, Sn,H[A1]ZSM5) and bimetallic (PtSn/H[A1]ZSM5) catalysts with variation of their tin atomic fraction (X _Sn = number of Sn moles/number of Sn moles + number of Pt moles). The solids prepared were analyzed by means of X-ray diffraction (XRD), nitrogen adsorption at - 196 °C, chemical analysis through inductive coupled plasma-atomic emission spectroscopy (ICP-AES) technique, energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), electronic paramagnetic resonance (EPR), transmission electronic microscopy (TEM), and by means of test reaction of toluene hydrogenation. Acetone transformation was carried out at 160°C, under atmosphere pressure, at an acetone/hydrogen molar ratio of 3 and varying WHSV. The results obtained show a sensitive variation in the catalytic properties as X_Sn is varied in the series of PtSn/H[A1] ZSM5 catalysts prepared; these changes are attributed to the presence of effects of the electronic and geometric type, which would be a consequence of the formation of a Pt-Sn alloy and probably of the phenomenon of decoration of platinum particles, which is evidenced from the evaluation of the solids by means of XPS and EPR.

Original language	English
Pages (from-to)	277-286
Number of pages	10
Journal	Journal of Molecular Catalysis A: Chemical
Volume	203
Issue number	1-2
DOIs	https://doi.org/10.1016/S1381-1169(03)00367-4
State	Published - 1 Sep 2003
Externally published	Yes

Keywords

Acetone
Bifunctional monometallic and bimetallic catalysts
Methyl isobutyl ketone
PtSn/H[A1]ZSM5

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10.1016/S1381-1169(03)00367-4

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title = "Acetone transformation over PtSn/H[A1]ZSM5 catalysts",

abstract = "A study was carried out on the reaction of acetone transformation over bifunctional monometallic (Pt/H[A1]ZSM5, Sn,H[A1]ZSM5) and bimetallic (PtSn/H[A1]ZSM5) catalysts with variation of their tin atomic fraction (X Sn = number of Sn moles/number of Sn moles + number of Pt moles). The solids prepared were analyzed by means of X-ray diffraction (XRD), nitrogen adsorption at - 196 °C, chemical analysis through inductive coupled plasma-atomic emission spectroscopy (ICP-AES) technique, energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), electronic paramagnetic resonance (EPR), transmission electronic microscopy (TEM), and by means of test reaction of toluene hydrogenation. Acetone transformation was carried out at 160°C, under atmosphere pressure, at an acetone/hydrogen molar ratio of 3 and varying WHSV. The results obtained show a sensitive variation in the catalytic properties as XSn is varied in the series of PtSn/H[A1] ZSM5 catalysts prepared; these changes are attributed to the presence of effects of the electronic and geometric type, which would be a consequence of the formation of a Pt-Sn alloy and probably of the phenomenon of decoration of platinum particles, which is evidenced from the evaluation of the solids by means of XPS and EPR.",

keywords = "Acetone, Bifunctional monometallic and bimetallic catalysts, Methyl isobutyl ketone, PtSn/H[A1]ZSM5",

author = "Ricardo Morales and Luis Melo and Joaqu{\'i}n Brito and Aura Llanos and Delf{\'i}n Moronta and Luis Albornoz and Eloy Rodr{\'i}guez",

year = "2003",

month = sep,

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doi = "10.1016/S1381-1169(03)00367-4",

language = "Ingl{\'e}s",

volume = "203",

pages = "277--286",

journal = "Journal of Molecular Catalysis A: Chemical",

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TY - JOUR

T1 - Acetone transformation over PtSn/H[A1]ZSM5 catalysts

AU - Morales, Ricardo

AU - Melo, Luis

AU - Brito, Joaquín

AU - Llanos, Aura

AU - Moronta, Delfín

AU - Albornoz, Luis

AU - Rodríguez, Eloy

PY - 2003/9/1

Y1 - 2003/9/1

N2 - A study was carried out on the reaction of acetone transformation over bifunctional monometallic (Pt/H[A1]ZSM5, Sn,H[A1]ZSM5) and bimetallic (PtSn/H[A1]ZSM5) catalysts with variation of their tin atomic fraction (X Sn = number of Sn moles/number of Sn moles + number of Pt moles). The solids prepared were analyzed by means of X-ray diffraction (XRD), nitrogen adsorption at - 196 °C, chemical analysis through inductive coupled plasma-atomic emission spectroscopy (ICP-AES) technique, energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), electronic paramagnetic resonance (EPR), transmission electronic microscopy (TEM), and by means of test reaction of toluene hydrogenation. Acetone transformation was carried out at 160°C, under atmosphere pressure, at an acetone/hydrogen molar ratio of 3 and varying WHSV. The results obtained show a sensitive variation in the catalytic properties as XSn is varied in the series of PtSn/H[A1] ZSM5 catalysts prepared; these changes are attributed to the presence of effects of the electronic and geometric type, which would be a consequence of the formation of a Pt-Sn alloy and probably of the phenomenon of decoration of platinum particles, which is evidenced from the evaluation of the solids by means of XPS and EPR.

AB - A study was carried out on the reaction of acetone transformation over bifunctional monometallic (Pt/H[A1]ZSM5, Sn,H[A1]ZSM5) and bimetallic (PtSn/H[A1]ZSM5) catalysts with variation of their tin atomic fraction (X Sn = number of Sn moles/number of Sn moles + number of Pt moles). The solids prepared were analyzed by means of X-ray diffraction (XRD), nitrogen adsorption at - 196 °C, chemical analysis through inductive coupled plasma-atomic emission spectroscopy (ICP-AES) technique, energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), electronic paramagnetic resonance (EPR), transmission electronic microscopy (TEM), and by means of test reaction of toluene hydrogenation. Acetone transformation was carried out at 160°C, under atmosphere pressure, at an acetone/hydrogen molar ratio of 3 and varying WHSV. The results obtained show a sensitive variation in the catalytic properties as XSn is varied in the series of PtSn/H[A1] ZSM5 catalysts prepared; these changes are attributed to the presence of effects of the electronic and geometric type, which would be a consequence of the formation of a Pt-Sn alloy and probably of the phenomenon of decoration of platinum particles, which is evidenced from the evaluation of the solids by means of XPS and EPR.

KW - Acetone

KW - Bifunctional monometallic and bimetallic catalysts

KW - Methyl isobutyl ketone

KW - PtSn/H[A1]ZSM5

UR - https://www.scopus.com/pages/publications/0043136300

U2 - 10.1016/S1381-1169(03)00367-4

DO - 10.1016/S1381-1169(03)00367-4

M3 - Artículo

AN - SCOPUS:0043136300

SN - 1381-1169

VL - 203

SP - 277

EP - 286

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 1-2

ER -

Acetone transformation over PtSn/H[A1]ZSM5 catalysts

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Keywords

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