REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS

Hicham Idriss, C DIAGNE, J P HINDERMANN, A KIENNEMANN, M A BARTEAU

Research output: Contribution to journalLiterature review

189 Citations (Scopus)

Abstract

The reactions of acetaldehyde were investigated on the surfaces of CeO2, 3 wt% Pd/CeO2, 3 wt% Co/CeO2, and 3 wt% Pd-3 wt% Co/CeO2 by temperature programmed desorption (TPD) and infrared spectroscopy (FT-IR). The surface and bulk compositions of these catalysts were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and CO chemisorption. XRD patterns indicated that the fluorite structure of CeO2 was maintained in all catalysts (calcined and H-2-reduced) and that there were no apprediable differences in particle dimension between CeO2 alone (96 Angstrom) and metal/CeO2 catalysts (84-98 Angstrom). Reduced catalysts were investigated by XPS: Ce (3d) spectra indicated the precence of Ce3+ cations, evidenced by V' and U' peaks at 885.0 and 903.7 eV, together with Ce4+ species. Co 2p spectra indicated the presence of Co2+ cations, evidenced by the Co 2p(3/2) line at 781.0 eV (and its satellite at about 788 eV) and Co 2p(1/2) at 797.0 eV (and its satellite at about 804 eV). Pd metal was detected on Pd/CeO2 and Pd-Co/CeO2. Several reactions of acetaldehyde were observed; they can be classified as oxidation, reduction, or carbon-carbon bond formation reactions. Oxidation to acetates and reduction to ethanol were observed on all catalysts; acetate species were identified by their IR bands at 1560-1540, 1451, 1400, 1343, and 1020 cm(-1) at room temperature, and ethanol was observed to desorb at ca, 400 K during acetaldehyde TPD. Several other adsorbed species were observed (on hydrogen reduced catalysts) by IR: acetyl, fingerprinted by a 1684 cm(-1) band on metal/CeO2, eta(2) (C, O) acetaldehyde (bands at 1220-1268, 1175-1156, 950-940 cm(-1)) on Pd/CeO2 and Pd-Co/CeO2, and CO adsorbed by its carbon to metal (Pd, Co) and by its oxygen to reduced Ce, giving rise to bands at 1730, 1739, and 1750 cm(-1). Four C-C bond formation reactions were observed: (1) beta-aldolization to crotonaldehyde and crotyl alcohol (most prominent on CeO2 alone), (2) acetate ketonization to acetone and CO2 on CeO2 and Co/CeO2, (3) acetyl reaction with methyl species to give acetone on Pd/CeO2, Co/CeO2, and Pd-Co/CeO2 (this acetone desorption was coincident with propane desorption on Pd/CeO2 and Co/CeO2), (4) reductive coupling of two molecules of acetaldehyde to butene and butadiene (on CeO2 and Co/CeO2). Pd-Co/CeO2 adsorbed four times more CO than did Pd/CeO2 or Co/CeO2 and was the most active for acetaldehyde conversion. (C) 1995 Academic Press, Inc.

Original languageEnglish
Pages (from-to)219-237
Number of pages19
JournalJournal of Catalysis
Volume155
Issue number2
DOIs
Publication statusPublished - 1 Sep 1995

Keywords

  • X-RAY PHOTOELECTRON
  • TEMPERATURE-PROGRAMMED DESORPTION
  • CARBON-MONOXIDE INTERMEDIATE
  • OXYGEN STORAGE CAPACITY
  • FORMALDEHYDE OXIDATION
  • SUPPORTED PALLADIUM
  • OXIDE CATALYSTS
  • ACID ADSORPTION
  • SINGLE-CRYSTAL
  • BOND FORMATION

Cite this

Idriss, H., DIAGNE, C., HINDERMANN, J. P., KIENNEMANN, A., & BARTEAU, M. A. (1995). REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS. Journal of Catalysis, 155(2), 219-237. https://doi.org/10.1006/jcat.1995.1205

REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS. / Idriss, Hicham; DIAGNE, C ; HINDERMANN, J P ; KIENNEMANN, A ; BARTEAU, M A .

In: Journal of Catalysis, Vol. 155, No. 2, 01.09.1995, p. 219-237.

Research output: Contribution to journalLiterature review

Idriss, H, DIAGNE, C, HINDERMANN, JP, KIENNEMANN, A & BARTEAU, MA 1995, 'REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS' Journal of Catalysis, vol. 155, no. 2, pp. 219-237. https://doi.org/10.1006/jcat.1995.1205
Idriss H, DIAGNE C, HINDERMANN JP, KIENNEMANN A, BARTEAU MA. REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS. Journal of Catalysis. 1995 Sep 1;155(2):219-237. https://doi.org/10.1006/jcat.1995.1205
Idriss, Hicham ; DIAGNE, C ; HINDERMANN, J P ; KIENNEMANN, A ; BARTEAU, M A . / REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS. In: Journal of Catalysis. 1995 ; Vol. 155, No. 2. pp. 219-237.
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abstract = "The reactions of acetaldehyde were investigated on the surfaces of CeO2, 3 wt{\%} Pd/CeO2, 3 wt{\%} Co/CeO2, and 3 wt{\%} Pd-3 wt{\%} Co/CeO2 by temperature programmed desorption (TPD) and infrared spectroscopy (FT-IR). The surface and bulk compositions of these catalysts were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and CO chemisorption. XRD patterns indicated that the fluorite structure of CeO2 was maintained in all catalysts (calcined and H-2-reduced) and that there were no apprediable differences in particle dimension between CeO2 alone (96 Angstrom) and metal/CeO2 catalysts (84-98 Angstrom). Reduced catalysts were investigated by XPS: Ce (3d) spectra indicated the precence of Ce3+ cations, evidenced by V' and U' peaks at 885.0 and 903.7 eV, together with Ce4+ species. Co 2p spectra indicated the presence of Co2+ cations, evidenced by the Co 2p(3/2) line at 781.0 eV (and its satellite at about 788 eV) and Co 2p(1/2) at 797.0 eV (and its satellite at about 804 eV). Pd metal was detected on Pd/CeO2 and Pd-Co/CeO2. Several reactions of acetaldehyde were observed; they can be classified as oxidation, reduction, or carbon-carbon bond formation reactions. Oxidation to acetates and reduction to ethanol were observed on all catalysts; acetate species were identified by their IR bands at 1560-1540, 1451, 1400, 1343, and 1020 cm(-1) at room temperature, and ethanol was observed to desorb at ca, 400 K during acetaldehyde TPD. Several other adsorbed species were observed (on hydrogen reduced catalysts) by IR: acetyl, fingerprinted by a 1684 cm(-1) band on metal/CeO2, eta(2) (C, O) acetaldehyde (bands at 1220-1268, 1175-1156, 950-940 cm(-1)) on Pd/CeO2 and Pd-Co/CeO2, and CO adsorbed by its carbon to metal (Pd, Co) and by its oxygen to reduced Ce, giving rise to bands at 1730, 1739, and 1750 cm(-1). Four C-C bond formation reactions were observed: (1) beta-aldolization to crotonaldehyde and crotyl alcohol (most prominent on CeO2 alone), (2) acetate ketonization to acetone and CO2 on CeO2 and Co/CeO2, (3) acetyl reaction with methyl species to give acetone on Pd/CeO2, Co/CeO2, and Pd-Co/CeO2 (this acetone desorption was coincident with propane desorption on Pd/CeO2 and Co/CeO2), (4) reductive coupling of two molecules of acetaldehyde to butene and butadiene (on CeO2 and Co/CeO2). Pd-Co/CeO2 adsorbed four times more CO than did Pd/CeO2 or Co/CeO2 and was the most active for acetaldehyde conversion. (C) 1995 Academic Press, Inc.",
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T1 - REACTIONS OF ACETALDEHYDE ON CEO2 AND CEO2-SUPPORTED CATALYSTS

AU - Idriss, Hicham

AU - DIAGNE, C

AU - HINDERMANN, J P

AU - KIENNEMANN, A

AU - BARTEAU, M A

PY - 1995/9/1

Y1 - 1995/9/1

N2 - The reactions of acetaldehyde were investigated on the surfaces of CeO2, 3 wt% Pd/CeO2, 3 wt% Co/CeO2, and 3 wt% Pd-3 wt% Co/CeO2 by temperature programmed desorption (TPD) and infrared spectroscopy (FT-IR). The surface and bulk compositions of these catalysts were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and CO chemisorption. XRD patterns indicated that the fluorite structure of CeO2 was maintained in all catalysts (calcined and H-2-reduced) and that there were no apprediable differences in particle dimension between CeO2 alone (96 Angstrom) and metal/CeO2 catalysts (84-98 Angstrom). Reduced catalysts were investigated by XPS: Ce (3d) spectra indicated the precence of Ce3+ cations, evidenced by V' and U' peaks at 885.0 and 903.7 eV, together with Ce4+ species. Co 2p spectra indicated the presence of Co2+ cations, evidenced by the Co 2p(3/2) line at 781.0 eV (and its satellite at about 788 eV) and Co 2p(1/2) at 797.0 eV (and its satellite at about 804 eV). Pd metal was detected on Pd/CeO2 and Pd-Co/CeO2. Several reactions of acetaldehyde were observed; they can be classified as oxidation, reduction, or carbon-carbon bond formation reactions. Oxidation to acetates and reduction to ethanol were observed on all catalysts; acetate species were identified by their IR bands at 1560-1540, 1451, 1400, 1343, and 1020 cm(-1) at room temperature, and ethanol was observed to desorb at ca, 400 K during acetaldehyde TPD. Several other adsorbed species were observed (on hydrogen reduced catalysts) by IR: acetyl, fingerprinted by a 1684 cm(-1) band on metal/CeO2, eta(2) (C, O) acetaldehyde (bands at 1220-1268, 1175-1156, 950-940 cm(-1)) on Pd/CeO2 and Pd-Co/CeO2, and CO adsorbed by its carbon to metal (Pd, Co) and by its oxygen to reduced Ce, giving rise to bands at 1730, 1739, and 1750 cm(-1). Four C-C bond formation reactions were observed: (1) beta-aldolization to crotonaldehyde and crotyl alcohol (most prominent on CeO2 alone), (2) acetate ketonization to acetone and CO2 on CeO2 and Co/CeO2, (3) acetyl reaction with methyl species to give acetone on Pd/CeO2, Co/CeO2, and Pd-Co/CeO2 (this acetone desorption was coincident with propane desorption on Pd/CeO2 and Co/CeO2), (4) reductive coupling of two molecules of acetaldehyde to butene and butadiene (on CeO2 and Co/CeO2). Pd-Co/CeO2 adsorbed four times more CO than did Pd/CeO2 or Co/CeO2 and was the most active for acetaldehyde conversion. (C) 1995 Academic Press, Inc.

AB - The reactions of acetaldehyde were investigated on the surfaces of CeO2, 3 wt% Pd/CeO2, 3 wt% Co/CeO2, and 3 wt% Pd-3 wt% Co/CeO2 by temperature programmed desorption (TPD) and infrared spectroscopy (FT-IR). The surface and bulk compositions of these catalysts were studied by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and CO chemisorption. XRD patterns indicated that the fluorite structure of CeO2 was maintained in all catalysts (calcined and H-2-reduced) and that there were no apprediable differences in particle dimension between CeO2 alone (96 Angstrom) and metal/CeO2 catalysts (84-98 Angstrom). Reduced catalysts were investigated by XPS: Ce (3d) spectra indicated the precence of Ce3+ cations, evidenced by V' and U' peaks at 885.0 and 903.7 eV, together with Ce4+ species. Co 2p spectra indicated the presence of Co2+ cations, evidenced by the Co 2p(3/2) line at 781.0 eV (and its satellite at about 788 eV) and Co 2p(1/2) at 797.0 eV (and its satellite at about 804 eV). Pd metal was detected on Pd/CeO2 and Pd-Co/CeO2. Several reactions of acetaldehyde were observed; they can be classified as oxidation, reduction, or carbon-carbon bond formation reactions. Oxidation to acetates and reduction to ethanol were observed on all catalysts; acetate species were identified by their IR bands at 1560-1540, 1451, 1400, 1343, and 1020 cm(-1) at room temperature, and ethanol was observed to desorb at ca, 400 K during acetaldehyde TPD. Several other adsorbed species were observed (on hydrogen reduced catalysts) by IR: acetyl, fingerprinted by a 1684 cm(-1) band on metal/CeO2, eta(2) (C, O) acetaldehyde (bands at 1220-1268, 1175-1156, 950-940 cm(-1)) on Pd/CeO2 and Pd-Co/CeO2, and CO adsorbed by its carbon to metal (Pd, Co) and by its oxygen to reduced Ce, giving rise to bands at 1730, 1739, and 1750 cm(-1). Four C-C bond formation reactions were observed: (1) beta-aldolization to crotonaldehyde and crotyl alcohol (most prominent on CeO2 alone), (2) acetate ketonization to acetone and CO2 on CeO2 and Co/CeO2, (3) acetyl reaction with methyl species to give acetone on Pd/CeO2, Co/CeO2, and Pd-Co/CeO2 (this acetone desorption was coincident with propane desorption on Pd/CeO2 and Co/CeO2), (4) reductive coupling of two molecules of acetaldehyde to butene and butadiene (on CeO2 and Co/CeO2). Pd-Co/CeO2 adsorbed four times more CO than did Pd/CeO2 or Co/CeO2 and was the most active for acetaldehyde conversion. (C) 1995 Academic Press, Inc.

KW - X-RAY PHOTOELECTRON

KW - TEMPERATURE-PROGRAMMED DESORPTION

KW - CARBON-MONOXIDE INTERMEDIATE

KW - OXYGEN STORAGE CAPACITY

KW - FORMALDEHYDE OXIDATION

KW - SUPPORTED PALLADIUM

KW - OXIDE CATALYSTS

KW - ACID ADSORPTION

KW - SINGLE-CRYSTAL

KW - BOND FORMATION

U2 - 10.1006/jcat.1995.1205

DO - 10.1006/jcat.1995.1205

M3 - Literature review

VL - 155

SP - 219

EP - 237

JO - Journal of Catalysis

JF - Journal of Catalysis

SN - 0021-9517

IS - 2

ER -