Monometallic Pd and Pt and bimetallic Pd-Pt/Al<2O3-TiO2for the HDS of DBT: Effect of the Pd and Pt incorporation method

Reynaldo Martínez Guerrero, Agileo Hernández-Gordillo, Víctor Santes, Jorge Roberto Vargas García, José Escobar, Leonardo Díaz-García, Lucía Díaz Barriga Arceo, Vicente Garibay Febles

Research output: Contribution to journalArticle

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Abstract

© 2014 Reynaldo Martínez Guerrero et al. The effect of the preparation method of monometallic Pd and Pt and bimetallic Pd-Pt/Al2O3-TiO2catalysts on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) was investigated in this study. The synthesis was accomplished using three methods: (A) impregnation, (B) metal organic chemical vapor deposition (MOCVD), and (C) impregnation-MOCVD. The bimetallic Pd-Pt catalyst prepared by the impregnation-MOCVD method was most active for the HDS of DBT compared to those prepared by the single impregnation or MOCVD method due to the synergetic effect between both noble metals. The greater selectivity toward biphenyl indicated that this bimetallic Pd-Pt catalyst preferentially removes sulfur via the direct desulfurization mechanism. However, the bimetallic Pd-Pt catalyst prepared using the single MOCVD method did not produce any cyclohexylbenzene, which is most likely associated with the hydrogenation/dehydrogenation sites.
Original languageAmerican English
JournalJournal of Chemistry
DOIs
StatePublished - 1 Jan 2014

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Organic Chemicals
Hydrodesulfurization
Chemical vapor deposition
Impregnation
Metals
Catalysts
Dehydrogenation
Desulfurization
Precious metals
Sulfur
Hydrogenation
dibenzothiophene

Cite this

@article{39d59ac664a24e3e95d17bd2f2716be7,
title = "Monometallic Pd and Pt and bimetallic Pd-Pt/Al<2O3-TiO2for the HDS of DBT: Effect of the Pd and Pt incorporation method",
abstract = "{\circledC} 2014 Reynaldo Mart{\'i}nez Guerrero et al. The effect of the preparation method of monometallic Pd and Pt and bimetallic Pd-Pt/Al2O3-TiO2catalysts on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) was investigated in this study. The synthesis was accomplished using three methods: (A) impregnation, (B) metal organic chemical vapor deposition (MOCVD), and (C) impregnation-MOCVD. The bimetallic Pd-Pt catalyst prepared by the impregnation-MOCVD method was most active for the HDS of DBT compared to those prepared by the single impregnation or MOCVD method due to the synergetic effect between both noble metals. The greater selectivity toward biphenyl indicated that this bimetallic Pd-Pt catalyst preferentially removes sulfur via the direct desulfurization mechanism. However, the bimetallic Pd-Pt catalyst prepared using the single MOCVD method did not produce any cyclohexylbenzene, which is most likely associated with the hydrogenation/dehydrogenation sites.",
author = "{Mart{\'i}nez Guerrero}, Reynaldo and Agileo Hern{\'a}ndez-Gordillo and V{\'i}ctor Santes and {Vargas Garc{\'i}a}, {Jorge Roberto} and Jos{\'e} Escobar and Leonardo D{\'i}az-Garc{\'i}a and {D{\'i}az Barriga Arceo}, Luc{\'i}a and {Garibay Febles}, Vicente",
year = "2014",
month = "1",
day = "1",
doi = "10.1155/2014/679281",
language = "American English",
journal = "Journal of Chemistry",
issn = "2090-9063",
publisher = "Hindawi Publishing Corporation",

}

Monometallic Pd and Pt and bimetallic Pd-Pt/Al<2O3-TiO2for the HDS of DBT: Effect of the Pd and Pt incorporation method. / Martínez Guerrero, Reynaldo; Hernández-Gordillo, Agileo; Santes, Víctor; Vargas García, Jorge Roberto; Escobar, José; Díaz-García, Leonardo; Díaz Barriga Arceo, Lucía; Garibay Febles, Vicente.

In: Journal of Chemistry, 01.01.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Monometallic Pd and Pt and bimetallic Pd-Pt/Al<2O3-TiO2for the HDS of DBT: Effect of the Pd and Pt incorporation method

AU - Martínez Guerrero, Reynaldo

AU - Hernández-Gordillo, Agileo

AU - Santes, Víctor

AU - Vargas García, Jorge Roberto

AU - Escobar, José

AU - Díaz-García, Leonardo

AU - Díaz Barriga Arceo, Lucía

AU - Garibay Febles, Vicente

PY - 2014/1/1

Y1 - 2014/1/1

N2 - © 2014 Reynaldo Martínez Guerrero et al. The effect of the preparation method of monometallic Pd and Pt and bimetallic Pd-Pt/Al2O3-TiO2catalysts on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) was investigated in this study. The synthesis was accomplished using three methods: (A) impregnation, (B) metal organic chemical vapor deposition (MOCVD), and (C) impregnation-MOCVD. The bimetallic Pd-Pt catalyst prepared by the impregnation-MOCVD method was most active for the HDS of DBT compared to those prepared by the single impregnation or MOCVD method due to the synergetic effect between both noble metals. The greater selectivity toward biphenyl indicated that this bimetallic Pd-Pt catalyst preferentially removes sulfur via the direct desulfurization mechanism. However, the bimetallic Pd-Pt catalyst prepared using the single MOCVD method did not produce any cyclohexylbenzene, which is most likely associated with the hydrogenation/dehydrogenation sites.

AB - © 2014 Reynaldo Martínez Guerrero et al. The effect of the preparation method of monometallic Pd and Pt and bimetallic Pd-Pt/Al2O3-TiO2catalysts on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) was investigated in this study. The synthesis was accomplished using three methods: (A) impregnation, (B) metal organic chemical vapor deposition (MOCVD), and (C) impregnation-MOCVD. The bimetallic Pd-Pt catalyst prepared by the impregnation-MOCVD method was most active for the HDS of DBT compared to those prepared by the single impregnation or MOCVD method due to the synergetic effect between both noble metals. The greater selectivity toward biphenyl indicated that this bimetallic Pd-Pt catalyst preferentially removes sulfur via the direct desulfurization mechanism. However, the bimetallic Pd-Pt catalyst prepared using the single MOCVD method did not produce any cyclohexylbenzene, which is most likely associated with the hydrogenation/dehydrogenation sites.

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DO - 10.1155/2014/679281

M3 - Article

JO - Journal of Chemistry

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